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Light and the electromagnetic spectrum
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This wavelength has the shortest wavelength and greatest frequency.
gamma
This wavelength cooks food.
microwaves
This wavelength keeps food hot.
infrared
This wavelength causes sunburn.
ultraviolet
This wavelength is used mainly for communications.
radio
This wavelength allows doctors see broken bones.
x-ray
List the waves in order of decreasing wavelength.
radio, micro, infrared, visibke, ultraviolet, s-ray, gamma
The electromagnetic spectrum is organized by decreasing __________
wavelength.
Waves with a longer wavelength have __________ frequency.
lower
Waves with higher frequency have _________ wavelength.
smaller
How much of the electromagnetic spectrum can humans see?
a small amount
List the colors of the visible spectrum.
red, orange, yellow, green, blue, indigo, violet
Wavelength is measured from the crest to the __________
crest.
The higher the amplitude, the ___________ the light.
brighter
True or false: Light waves travel in a straight line
True