20.1. 20.2 20.3 20.4 Longitudinal Wave 20.5 Longitudinal Wave.
P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy...
-
Upload
dylan-allison -
Category
Documents
-
view
214 -
download
1
Transcript of P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy...
![Page 1: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/1.jpg)
P6 – The Wave model of Radiation
![Page 2: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/2.jpg)
What creates a Wave?
• MUST: recall that waves transfer energy
• SHOULD: be able to describe the form of longitudinal and transverse waves and give examples
• COULD: Be able to explain the form of a wave using key terms
![Page 3: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/3.jpg)
Longitudinal Waves• These are compression Waves
• Energy compacts particles closer together and this is passed through the medium (the material)
• The energy displaces the material in the direction of the wave
• EG SOUND WAVES
• Example - SOUND waves
![Page 4: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/4.jpg)
Longitudinal Soundwave
![Page 5: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/5.jpg)
Task
• AP6.4
![Page 6: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/6.jpg)
Transverse Waves
• “Side to Side” waves
• The energy displaces the material at right angles to the direction of the wave
• Water Waves and ALL electromagnetic radiation (including light) are Transverse Waves
![Page 7: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/7.jpg)
Transverse Wave
![Page 8: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/8.jpg)
Tasks
• Activity AP6.3
![Page 9: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/9.jpg)
What can Change about a Wave?
MUST: Know the terms Wavelength, Frequency and Amplitude
SHOULD: Be able to use the Wave EquationCOULD: Be able to explain changes in wave
patterns using the wave equation
![Page 10: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/10.jpg)
What types of Wave are there?
Name the two different types of wave
Give examples of each type of them
![Page 11: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/11.jpg)
Wave Terms
![Page 12: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/12.jpg)
Wavelength
![Page 13: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/13.jpg)
Wavelength
• The length of whole wave Cycle
![Page 14: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/14.jpg)
Wavelength
• The length of whole wave Cycle
• EG Peak to Peak, Trough to Trough
![Page 15: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/15.jpg)
Wavelength
• The length of whole wave Cycle
• EG Peak to Peak, Trough to Trough
• Measured in metres (m)
![Page 16: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/16.jpg)
Frequency
![Page 17: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/17.jpg)
Frequency
• How often waves come along
![Page 18: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/18.jpg)
Frequency
• How often waves come along
• EG Number of total wave per second
![Page 19: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/19.jpg)
Frequency
• How often waves come along
• Number of total waves per second
• Measured in Hertz (Hz)
![Page 20: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/20.jpg)
Amplitude
![Page 21: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/21.jpg)
Amplitude
• The size of a Wave
![Page 22: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/22.jpg)
Amplitude
• The size of a Wave
• The Maximum Displacement from the Baseline
![Page 23: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/23.jpg)
Amplitude
• The size of a Wave
• The Maximum Displacement from the Baseline
• Measure from Base to Peak or Base to Trough
![Page 24: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/24.jpg)
![Page 25: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/25.jpg)
Simple Examination Question(b) This graph shows a microwave
i) Which distance A, B, C or D is the Wavelength of the Microwave? _____ (1)
ii) Which distance A, B, C or D is the Amplitude of the Microwave? _____ (1)
![Page 26: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/26.jpg)
Activity AP6.6
![Page 27: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/27.jpg)
The Wave Equation
![Page 28: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/28.jpg)
The Wave Equation
wave speed = frequency x wavelength
![Page 29: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/29.jpg)
The Wave Equation
wave speed = frequency x wavelength
(metres per second) (hertz) (metre)
![Page 30: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/30.jpg)
The Wave Equation
wave speed = frequency x wavelength
(metres per second) (hertz) (metre)
m/s Hz m
![Page 31: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/31.jpg)
The Wave Equation
wave speed = frequency x wavelength
(metres per second) (hertz) (metre)
m/s Hz m
Also written as v = fλ
![Page 32: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/32.jpg)
How do Sound Waves Change?
![Page 33: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/33.jpg)
How do Sound Waves Change?
• Low Frequency = Long Wavelength
![Page 34: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/34.jpg)
How do Sound Waves Change?
• Low Frequency = Long Wavelength
• Low pitch Sounds
![Page 35: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/35.jpg)
How do Sound Waves Change?
• Low Frequency = Long Wavelength
• Low pitch Sounds
• High Frequency = Short Wavelength
![Page 36: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/36.jpg)
How do Sound Waves Change?
• Low Frequency = Long Wavelength
• Low pitch Sounds
• High Frequency = Short Wavelength
• High pitch Sounds
![Page 37: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/37.jpg)
![Page 38: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/38.jpg)
Tasks
• Activity AP6.8 – 10 minutes
• Calculations using the Wave Equation• Check your answer to question 4b - Is there anything wrong
with this answer?
• Text Book – Pages 236, 237
• Questions 1 – 6
![Page 39: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/39.jpg)
What can happen to waves in a medium?
MUST: know the terms reflection, refraction, diffraction and interference
SHOULD: be able to explain these wave effects
COULD: use wave effects to explain common phenomena
![Page 40: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/40.jpg)
Starter
![Page 41: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/41.jpg)
Tasks
• Watch the demonstrations
• Complete the worksheet (AP6.11) from your observations
![Page 42: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/42.jpg)
Definitions
![Page 43: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/43.jpg)
Definitions
• Reflection – When waves bounce off something
![Page 44: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/44.jpg)
![Page 45: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/45.jpg)
Definitions
• Reflection – When waves bounce off something
• Refraction – As waves change medium they may slow down or speed up – This can create a change in course/direction
![Page 46: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/46.jpg)
![Page 47: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/47.jpg)
Refraction
![Page 48: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/48.jpg)
Definitions
![Page 49: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/49.jpg)
Definitions
• Diffraction – After waves pass through a gap or pass a barrier, they spread out.
![Page 50: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/50.jpg)
![Page 51: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/51.jpg)
![Page 52: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/52.jpg)
![Page 53: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/53.jpg)
Definitions
• Diffraction – After waves pass through a gap or pass a barrier, they spread out.
• Interference – When waves meet they can reinforce or deconstruct
![Page 54: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/54.jpg)
![Page 55: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/55.jpg)
![Page 56: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/56.jpg)
Tasks
• Pages 238, 239
• Copy and label the Wave Diagrams of Reflection, Diffraction and Interference
• Include an explanation of what is happening
![Page 57: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/57.jpg)
Wave Effects
MUST: recall the wave effects
SHOULD: be able to describe how waves can be refracted
COULD: be able to explain the refraction effect
![Page 58: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/58.jpg)
What are the Wave Effects?
![Page 59: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/59.jpg)
![Page 60: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/60.jpg)
![Page 61: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/61.jpg)
![Page 62: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/62.jpg)
![Page 63: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/63.jpg)
Reflection
![Page 64: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/64.jpg)
Refraction
![Page 65: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/65.jpg)
Interference
![Page 66: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/66.jpg)
Diffraction
![Page 67: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/67.jpg)
How does Refraction occur?
![Page 68: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/68.jpg)
How does Refraction occur?
• Refraction is caused when waves change medium ( The Material that they are travelling through)
![Page 69: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/69.jpg)
How does Refraction occur?
• Refraction is caused when waves change medium ( The Material that they are travelling through)
• This is because the waves CHANGE SPEED as they change Medium
![Page 70: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/70.jpg)
Speed up or Slow Down?
![Page 71: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/71.jpg)
Speed up or Slow Down?
When Light moves from AIR to GLASS it slows down
![Page 72: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/72.jpg)
Speed up or Slow Down?
When Light moves from AIR to GLASS it slows down
When Light Moves from GLASS to AIR it speeds up
![Page 73: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/73.jpg)
![Page 74: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/74.jpg)
Tasks
• Page 240 – Copy and Label diagrams of Light Rays - Reflection and Refraction
• Activity AP6.17
![Page 75: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/75.jpg)
Plenary
• Activity Sheet AP6.18
![Page 76: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/76.jpg)
Is light really a Wave?
MUST: recall evidence for light being a waveSHOULD: be able to measure the critical
angle for lightCOULD: be able to explain the wave effects of
light
![Page 77: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/77.jpg)
What are these Wave Effects?
A. B.
C. D.
![Page 78: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/78.jpg)
Sound Waves?
Is sound a wave?
Give at least three reasons for your answer
![Page 79: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/79.jpg)
Sound is a Wave
![Page 80: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/80.jpg)
Sound is a WaveSound Waves can:
![Page 81: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/81.jpg)
Sound is a WaveSound Waves can:
Be Reflected (Echo)
![Page 82: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/82.jpg)
Sound is a WaveSound Waves can:
Be Reflected (Echo)
Be Refracted – passing through materials of different density
![Page 83: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/83.jpg)
Sound is a WaveSound Waves can:
Be Reflected (Echo)
Be Refracted – passing through materials of different density
Be Diffracted – Spread out as they pass through a gap
![Page 84: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/84.jpg)
Sound is a WaveSound Waves can:Be Reflected (Echo)
Be Refracted – passing through materials of different density
Be Diffracted – Spread out as they pass through a gap
Undergo Interference
![Page 85: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/85.jpg)
Is Light a Wave?
![Page 86: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/86.jpg)
Task
• Activity AP6.19
• Light on Trial
• Answer the Questions on the Properties of Light – Could this be done by particles and / or by waves
![Page 87: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/87.jpg)
The shadow of a razor blade using laser light
![Page 88: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/88.jpg)
The shadow of a needle
![Page 89: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/89.jpg)
The shadow of a razor blade using laser light.
There is a bright spot in the centre of this
shadow made by a tiny ball bearing.
![Page 90: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/90.jpg)
Diffraction of waves by a
barrier
![Page 91: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/91.jpg)
The light from a laser
shone through a single
narrow slit
![Page 92: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/92.jpg)
White light through a
narrow slit gives coloured
fringes.
![Page 93: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/93.jpg)
The pattern formed by
light passing through two
narrow slits
![Page 94: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/94.jpg)
Interference of water
waves
![Page 95: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/95.jpg)
Reflection of Light
Carry out Practical Activity AP6.20
Find the Critical Angle of Glass
![Page 96: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/96.jpg)
Critical Angle - Glass
![Page 97: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/97.jpg)
Critical Angles
The Angle at which light is totally internally reflected within a substance
For glass this is around 42 degrees
![Page 98: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/98.jpg)
Total Internal Reflection
![Page 99: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/99.jpg)
Diamond
![Page 100: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/100.jpg)
Critical Angle - Diamond
![Page 101: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/101.jpg)
![Page 102: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/102.jpg)
Refractive index of Gemstones
http://www.allaboutgemstones.com/gemstone_refractive_index.html
![Page 103: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/103.jpg)
Plenary
• Can you TIR in water?
![Page 104: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/104.jpg)
What is the Electromagnetic Spectrum?
MUST: recall the radiations that make up the electromagnetic spectrum
SHOULD: be able to describe how Frequency and Wavelength change through the Spectrum
COULD: be able to explain how the changes in Frequency and Wavelength relate to the Wave
Equation
![Page 105: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/105.jpg)
Starter• What are the 7 colours of the Rainbow?
• What is the Speed of Light in air?
• What happens to the speed of light in Water?
• What happens to the speed of light in glass?
![Page 106: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/106.jpg)
Starter• What are the 7 colours of the Rainbow?
Red, Orange, Yellow, Green Blue, Indigo, Violet
• What is the Speed of Light in air?
300,000 km/s
• What happens to the speed of light in Water?
Slows down – to around 230,000 km/s
• What happens to the speed of light in glass?
Slows down – to around 200,000 km/s
![Page 107: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/107.jpg)
What is Light?
• An electromagnetic wave
• Contains a range of Frequencies and Wavelengths that make up the different colours of light (ROY G BIV)
• When mixed together they are seen as white light
![Page 108: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/108.jpg)
![Page 109: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/109.jpg)
Making a Spectrum
![Page 110: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/110.jpg)
![Page 111: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/111.jpg)
Task
• AP6.24
• Match the diagrams that represent each form of radiation to the Electromagnetic Spectrum
• Give examples of each of the uses (Page 245 in Text Book)
• Page 244
• Questions 1, 2, 3 and 4
![Page 112: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/112.jpg)
Task
• Complete Activity Sheet AP6.23a
• You WILL need a Scientific Calculator for the Calculations (GET ONE FOR THE EXAM)
• If you can’t work out the answers using the Wave Equation, try to predict the values.
![Page 113: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/113.jpg)
Plenary
• Electromagnetic Spectrum
![Page 114: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/114.jpg)
The Risky Side of the Rainbow?
MUST: recall which radiations are the most harmful
SHOULD: recall how these radiations can be used and detected
COULD: be able to explain why these radiations are more harmful
![Page 115: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/115.jpg)
Starter
• List all the different types of radiation in the Electromagnetic Spectrum
• Start at Radio Waves and go in order of Increasing Frequency / Decreasing Wavelength
• Give a use of each one of the radiation types
![Page 116: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/116.jpg)
Which radiations are Risky?
![Page 117: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/117.jpg)
Which radiations are Risky?
• Ultraviolet (UV)
![Page 118: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/118.jpg)
Which radiations are Risky?
• Ultraviolet (UV)
• X-Rays
![Page 119: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/119.jpg)
Which radiations are Risky?
• Ultraviolet (UV)
• X-Rays
• Gamma Rays
![Page 120: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/120.jpg)
Why are these Radiations Harmful?
![Page 121: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/121.jpg)
Why are these Radiations Harmful?
Shorter Wavelengths
![Page 122: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/122.jpg)
Why are these Radiations Harmful?
Shorter Wavelengths
Higher Frequency
![Page 123: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/123.jpg)
Why are these Radiations Harmful?
Shorter Wavelengths
Higher Frequency
More energy in each Photon
![Page 124: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/124.jpg)
Why are these Radiations Harmful?
Shorter Wavelengths
Higher Frequency
More energy in each Photon
IONISING Radiation - Causes atoms to break apart
![Page 125: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/125.jpg)
![Page 126: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/126.jpg)
How can we protect Ourselves from Harmful Radiations?
![Page 127: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/127.jpg)
How can we protect Ourselves from Harmful Radiations?
• Avoid them
![Page 128: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/128.jpg)
How can we protect Ourselves from Harmful Radiations?
• Avoid them
• Use Materials that Block or Absorb the radiations
![Page 129: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/129.jpg)
Tasks
• Page 247
• Copy and Define Key Words – Ultraviolet, Ionising Radiation, X-Rays, Gamma Rays
• Answer Questions 1, 2 and 3
![Page 130: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/130.jpg)
Tasks
• Activity AP6.29
• Uses of X – Rays
• Activity AP6.28
• X – Ray film badge
![Page 131: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/131.jpg)
How is Infrared radiation useful to us?
ALL MUST: Recall the effects of Infrared radiationSHOULD: Be able to explain the uses of infrared radiation
COULD: Be able to describe and explain the changing frequency and wavelength of IR as it relates to different
temperatures
![Page 132: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/132.jpg)
Starter
• List the Seven colours of the spectrum in order from Lowest Frequency/longest wavelength to highest/shortest
• On either end of the spectrum, add the invisible radiations found immediately beyond these
• List a couple of uses of these invisible radiations
![Page 133: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/133.jpg)
![Page 134: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/134.jpg)
Infra Red
![Page 135: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/135.jpg)
Infra Red
• Beneath the Visible Spectrum, beyond red
![Page 136: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/136.jpg)
Infra Red
• Beneath the Visible Spectrum, beyond red
• All objects give off some infrared
![Page 137: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/137.jpg)
Infra Red
• Beneath the Visible Spectrum, beyond red
• All objects give off some infrared
• Most solids absorb infrared, causing temperature to rise
![Page 138: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/138.jpg)
Infra Red
• Beneath the Visible Spectrum, beyond red
• All objects give off some infrared
• Most solids absorb infrared, causing temperature to rise
• Only Higher Frequency IR can pass through glass and clear Plastics. Other frequencies are absorbed or reflected – See Greenhouse Effect
![Page 139: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/139.jpg)
Infrared Radiation
![Page 140: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/140.jpg)
Plenary
• Practice examination question
![Page 141: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/141.jpg)
How are Microwaves useful?MUST: recall microwave and radiowave are
transmission and absorptionSHOULD: be able to describe factors that
that affect absorptionCOULD: be able to explain the importance
of the use of different radiations
![Page 142: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/142.jpg)
Starter
• Question sheet – X Rays
• Radio Waves?
![Page 143: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/143.jpg)
Microwaves and Radiowaves
![Page 144: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/144.jpg)
Microwaves and Radiowaves
• Primary use is for Communication (TV, Satellite, Mobile phones, Radio, etc)
![Page 145: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/145.jpg)
Microwaves and Radio Waves
• Primary use is for Communication (TV, Satellite, Mobile phones, Radio, etc)
• UHF/VHF Radio waves and some Microwaves pass through the Atmosphere with very little absorption
![Page 146: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/146.jpg)
Microwaves and Radio Waves
• Primary use is for Communication (TV, Satellite, Mobile phones, Radio, etc)
• UHF/VHF Radio waves and some Microwaves pass through the Atmosphere with very little absorption
• Medium and Long Wave radiowaves are reflected off the Atmosphere
• Of these, Microwaves have the shortest wavelength, so are diffracted the least
![Page 147: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/147.jpg)
What stops a Microwave?
• Demo
![Page 148: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/148.jpg)
What Stops a Microwave?
Microwave signal passes through
Microwave signal stopped
![Page 149: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/149.jpg)
What stops a Microwave?
• Microwaves transmit through:
• The Air / Atmosphere
• Dry, Non Metallic Solids
• Microwaves are stopped by:
• Metals
• Water / Moisture
![Page 150: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/150.jpg)
Satellite TV
• What happens to Satellite TV in a Very Heavy Thunderstorm?
• Why?
![Page 151: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/151.jpg)
![Page 152: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/152.jpg)
Tasks
• Activity AP6.34
• Sketch the “Atmospheric Window” Graph into your Book.
• Note which radiations transmit strongly through our atmosphere and those that don’t
• Answer Questions 1 – 5
• Extension – Text Book – Page 251 – Questions 6, 7 and 8
![Page 153: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/153.jpg)
![Page 154: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/154.jpg)
![Page 155: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/155.jpg)
Is there anybody out there?
• If you want to find signs of Life on Other planets and in Other Galaxies, what types of Radiation would you look for or use to try and send messages with?
• Why?
![Page 156: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/156.jpg)
Telescopes
![Page 157: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/157.jpg)
Keck Telescope
![Page 158: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/158.jpg)
Keck Telescope
![Page 159: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/159.jpg)
Arecibo Radio Telescope
![Page 160: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/160.jpg)
Pulsar Telescope
![Page 161: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/161.jpg)
Looking into Space
• Video Clip
![Page 162: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/162.jpg)
Plenary
• Question Sheet
![Page 163: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/163.jpg)
How does a Radio work?
MUST: recall the terms FM, AM and RFSHOULD: be able to describe the differences in
AM and FMCOULD: Be able to explain the difference between
AM and FM and how they are used
![Page 164: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/164.jpg)
Starter
• Microwaves or Microwaves?
• Worksheet Questions
![Page 165: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/165.jpg)
Beacon fires
• Beacon fires have been used
throughout history to communicate
warnings (the Spanish Armada) and
as celebrations (Queen Elizabeth’s
Silver Jubilee).
• Are beacon fires a digital signalling
device or an analogue device?
• What problems might there be in
communicating with signal fires?
![Page 166: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/166.jpg)
Smoke signals
• Analogue or digital?
• What problems might there be using
smoke signals?
![Page 167: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/167.jpg)
Semaphore
• Analogue or digital?
![Page 168: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/168.jpg)
International flag signal code used by shipping
Analogue or digital?
![Page 169: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/169.jpg)
Morse code
This is not just a digital signalling
system but a binary tool. There are just
two symbols used: a dot and a dash.
![Page 170: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/170.jpg)
Radio waves
Radio signals are broadcast by modulating a
radio wave. Today many signals are broadcast
using an analogue system, but more and more
signals are broadcast in digital form.
![Page 171: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/171.jpg)
Fax machines
These use a binary digital
system to transmit
information: everything is
transmitted as a stream of
0s and 1s down telephone
cables.
![Page 172: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/172.jpg)
Mobile phones
A digital binary device
again: this time, the signal
is transmitted in the form
of microwave radiation
through the air.
![Page 173: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/173.jpg)
How does a Radio work?
• Page 252
• Draw a Flow Diagram to show the stages in the process from Sound at the Transmission end to Sound at the Listener’s Radio
• Copy and Define Key Words – Carrier, Amplitude Modulation, Frequency Modulation, Noise
• Text Book – Page 253 – Questions 1 - 3
![Page 174: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/174.jpg)
How does a Radio Work?
![Page 175: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/175.jpg)
How does a Radio Work?
• A Radiowave (RF Wave) is created
![Page 176: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/176.jpg)
How does a Radio Work?
• A Radiowave (RF Wave) is created
• A Modulator Combines it with a SOUND wave
![Page 177: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/177.jpg)
How does a Radio Work?
• A Radiowave (RF Wave) is created
• A Modulator Combines it with a SOUND wave
• The Sound wave creates a Pattern in the repeating RF Wave
![Page 178: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/178.jpg)
How does a Radio Work?
• A Radiowave (RF Wave) is created
• A Modulator Combines it with a SOUND wave
• The Sound wave creates a Pattern in the repeating RF Wave
• The Modulated RF carrier waves are Transmitted
![Page 179: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/179.jpg)
Reciever
![Page 180: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/180.jpg)
Reciever
• The Modulated RF wave is Received
![Page 181: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/181.jpg)
Reciever
• The Modulated RF wave is Received
• It is Demodulated (the RF carrier is removed)
![Page 182: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/182.jpg)
Reciever
• The Modulated RF wave is Received
• It is Demodulated (the RF carrier is removed)
• The Electrical signal is amplified and creates the sound wave from the speakers
![Page 183: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/183.jpg)
AM or FM?
• AM – Amplitude Modulation
• FM – Frequency Modulation
![Page 184: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/184.jpg)
![Page 185: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/185.jpg)
![Page 186: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/186.jpg)
AM
• Amplitude modulation.
• The amplitude changes from large to small to large again to copy the changes in the sound wave being carried by the radio wave.
• The frequency does not change.
![Page 187: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/187.jpg)
FM
• Frequency modulation.
• The frequency changes from high to low to high again to copy those same changes in the sound wave being carried by the radio wave.
• The amplitude does not change
![Page 188: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/188.jpg)
Tasks
• Text Book – Page 253 – Questions 1 - 3
![Page 189: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/189.jpg)
Plenary
• Worksheet Questions
• Adding information to waves
![Page 190: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/190.jpg)
FM and Digital
MUST: recall the differences between AM, FM and Digital Radio signals
SHOULD: be able to explain advantages of FM and Digital Signals
COULD: be able to explain the differences between Analogue and Digital Signals
![Page 191: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/191.jpg)
Starter
• Worksheet questions – AM / FM
• Radio Signals
![Page 192: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/192.jpg)
FM vs AM
![Page 193: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/193.jpg)
FM vs AM
Noise creates extra unwanted variations in amplitude
![Page 194: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/194.jpg)
FM vs AM
Noise creates extra unwanted variations in amplitude
FM picks up less electrical interference (noise) than AM signals
![Page 195: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/195.jpg)
Analogue vs Digital
Powerpoint
Demonstration
![Page 196: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/196.jpg)
![Page 197: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/197.jpg)
How is Analogue converted to Digital?
• Page 254 - Section J
![Page 198: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/198.jpg)
Analogue vs Digital
![Page 199: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/199.jpg)
Analogue vs Digital
• Analogue signals have continuous variation
![Page 200: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/200.jpg)
Analogue vs Digital
• Analogue signals have continuous variation
• Digital signals have only 2 variations – ‘On’ or ‘Off’
![Page 201: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/201.jpg)
Analogue vs Digital
• Analogue signals have continuous variation
• Digital signals have only 2 variations – ‘On’ or ‘Off’
• These Digital signals are Binary Code – 1’s and 0’s
![Page 202: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/202.jpg)
Advantages of Digital
![Page 203: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/203.jpg)
Advantages of Digital
Digital can be used by microprocessors (computers)
![Page 204: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/204.jpg)
Advantages of Digital
Digital can be used by microprocessors (computers)
Digital can carry more information every second than analogue
![Page 205: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/205.jpg)
Advantages of Digital
Digital can be used by microprocessors (computers)
Digital can carry more information every second than analogue
Digital can be delivered with no loss of quality. ‘Noise’ can be cleaned up.
![Page 206: P6 – The Wave model of Radiation. What creates a Wave? MUST: recall that waves transfer energy SHOULD: be able to describe the form of longitudinal and.](https://reader035.fdocuments.in/reader035/viewer/2022062720/56649f115503460f94c241ab/html5/thumbnails/206.jpg)
Tasks
1. Draw a diagram to compare the differences in transmission and reception of Analogue and Digital Signals (page 255)
2. Complete Questions 1, 2 and 3 – Page 254