Post on 08-Feb-2016
description
Review for CIA 2-2
We are learning to: describe the properties of waves.
We are looking for: Wavelength-distance from crest to crest (transverse wave), or from compression to compression (longitudinal wave)Frequency-number of waves that pass a given point each secondAmplitude-distance from rest position to the crest (transverse wave); measures how compressed the particles of the medium are (longitudinal wave); determines the amount of energy of each wave
In the diagram, identify the wave property “A”
A. B. C. D.
0 000
A. FrequencyB. AmplitudeC. WavelengthD. Help! I don’t understand.
Which of the following is true about waves in the diagram?
A. B. C. D.
0 000
A. Wave X has a higher frequency than Wave Y
B. Wave X has a lower frequency than Wave Y
C. Wave X has the same frequency as Wave Y
D. Help! I don’t understand.
Which of the waves in the picture has the greatest
amplitude?
1
2
3
0
0
0
0A. 1
B. 2
C. 3
D. Help! I don’t understand.
Which property measures the amount of energy transferred by a wave?
A. B. C. D.
0 000
A. WavelengthB. FrequencyC. AmplitudeD. Help! I don’t
understand.
7
We are learning to demonstrate how waves transfer energy.
We are looking for how waves interact with an object or other waves. They either:
Transmit-wave energy passes through an object.
Reflect-wave energy bounces off an object.
Refract – wave changes speed as it passes from one medium to another medium
Diffract – wave spreads out as it passes through an opening or around the edge of a barrier
Absorb-wave energy is taken in by an object they encounter.
Interference-wave energy of multiple waves is combined.
What happens to the energy of the wave when the crest of the blue wave meets the crest of the green wave?
0
0
0
0A. Energy decreases.B. Energy increases.C. Energy stays the
same.D. I don’t get it! Help!
What is it called when a wave bounces off of a barrier?
9
a. b. c. d.
0% 0%0%0%
a. Refractionb. Reflectionc. Diffractiond. Help! I don’t know.
10
What happens to waves as they go through an opening or around a
corner of an object?
10
A. B. C. D.
0% 0%0%0%
A. They are refracted.B. They are reflected.C. They are diffracted.D. Help! I don’t know.
10
As waves go through different mediums, what happens to them?
11
A. B. C. D.
0% 0%0%0%
A. Waves change speed and are reflected.
B. Waves change speed and are refracted.
C. Waves change speed and are diffracted.
D. Help! I don’t know.
10
We are learning to: demonstrate that vibrations produce longitudinal waves which move away from the original source. We are looking for: an explanation of the following:
• A medium is required (mechanical wave)• A sound is produced (acoustic energy)• A vibration is required to produce sound waves (longitudinal wave)
Energy is required to create a sound wave. Sound energy is also known as . . .
A. B. C. D. E.
0 0 000A. Elastic potential energy
B. Radiant energyC. Acoustic energyD. Thermal energyE. Help! I don’t
understand.
How does sound transfer energy?
A. B. C. D.
0 000A. By vibration of a
medium, producing a transverse wave.
B. By vibration of a medium, producing a longitudinal wave.
C. By vibration of a medium, producing a surface wave.
D. Help! I don’t know.
Sound cannot be heard in which of the following locations?
A. B. C. D. E.
0 0 000
A. In a buildingB. Under waterC. In spaceD. In the forestE. Help! I don’t know.
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Thanks
• https://docs.google.com/a/solonschools.net/spreadsheet/viewform?formkey=dGNKWFJJVGlfVmt6Z21KSlN5dzZheEE6MQ