The Electromagnetic

Spectrum6 October 2014

Light Absorption, Reflection, and Refraction

Review: Video

- notes must be written neatly- letters should not be too BIG!- write on each line, unless instructed

to skip a line for another section- have a puke page on standby: if you

run out of room on the first page, then continue writing on the puke page (glue after the presentation!)

Note- Taking Expectations

Your notes should contain the following at the top of page 21:- The essential question- The date (international style) and

page #- The title (Electromagnetic

Spectrum)

Top of the Page

Skip 1 line underneath the title

Here we go!

Electromagnetic Waves: waves of light

Electromagnetic Waves: waves of light; some are visible or invisible

Electromagnetic Waves: waves of light; some are visible or invisible; they are made by vibrating electric charges and can travel through a medium or open space

With your group, answer the following question: Electromagnetic Waves are an example of what type of wave? You have 20 seconds!

BRAIN BREAK!

With your group, answer the following question: Electromagnetic Waves are an example of what type of wave? You have 20 seconds!

Transverse Waves*write this to the right of the definition of electromagnetic

waves*

BRAIN BREAK!

Skip 1 line

Frequency: frequency of electromagnetic waves is the # of waves per second (Hz)

With your group, come up with a good mathematical formula that represents frequency. You have 30 seconds!

BRAIN BREAK!

With your group, come up with a good mathematical formula that represents frequency. You have 30 seconds!

F = # of waves time

*write the formula to the right of the definition of frequency*

BRAIN BREAK!

Skip 1 line

The Electromagnetic Spectrum: all the different frequencies of light

Skip 2 lines and write The Electromagnetic Spectrum Includes: on

the 3rd line

Skip 1 line

→ Radio Waves: low frequency waves with wavelengths of 1-10 cm

→ Radio Waves: low frequency waves with wavelengths of 1-10 cm; have the longest wavelengths

→ Radio Waves: low frequency waves with wavelengths of 1-10 cm; have the longest wavelengths(ex: radio stations, microwaves, radar)

Skip 1 line

→ Infrared Waves: slightly higher frequency waves than radio waves

→ Infrared Waves: slightly higher frequency waves than radio waves

(ex: remote controls, warmth of fire, satellites)

Skip 1 line

→ Visible Light Waves: range of waves that humans can see

→ Visible Light Waves: range of waves that humans can see; each different wavelength is seen as a different color

With your group, come up with a good example of visible light. You have 20 seconds!

BRAIN BREAK!

With your group, come up with a good example of visible light. You have 20 seconds!

ROY G BIV

BRAIN BREAK!

→ Visible Light Waves: range of waves that humans can see; each different wavelength is seen as a different color

(ex: ROY G BIV)

Skip 1 line

→ Ultraviolet (UV) Waves: frequencies slightly higher than visible light;

→ Ultraviolet (UV) Waves: frequencies slightly higher than visible light; wavelengths are too short for humans to see

→ Ultraviolet (UV) Waves: frequencies slightly higher than visible light; wavelengths are too short for humans to see

(ex: sunburns, vitamin D production, kills bacteria, cataracts, cancer)

Skip 1 line

→ X-Ray Waves: even higher frequencies that can get into your body

→ X-Ray Waves: even higher frequencies that can get into your body; they are absorbed by bone

→ X-Ray Waves: even higher frequencies that can get into your body; they are absorbed by bone

(ex: medical x-rays)

Skip 1 line

→ Gamma Ray Waves: highest frequency waves with the shortest wavelengths;

→ Gamma Ray Waves: highest frequency waves with the shortest wavelengths; can travel through matter; will damage cells

→ Gamma Ray Waves: highest frequency waves with the shortest wavelengths; can travel through matter; will damage cells

(ex: medical bone imaging, causes cancer, used to kill cancer cells)

- highlight in yellow electromagnetic waves, frequency, electromagnetic spectrum

- underline in red the different parts of the EMS and their examples

- circle in blue the 1) the type of wave that light is 2) the formula for frequency

Note Review

- draw a green box around the different examples of the Electromagnetic Spectrum

Note Review