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
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