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Light

Light unit

TermDefinition
electromagnetic waves vibrating electric charges that move through space
radiant energy energy carried by electromagnetic waves
photon a particle whose energy depends on light
radio waves low frequency; long wavelength
Electromagnetic spectrum the entire range of wave frquencies
microwaves higher frequency and shorter wavelength than radio waves
infrared frequency right below visible light; heat
visible light frquencies you can see
ROYGBIV colors in order of frequency; red is longest
ultraviolet frequency right above visible light
ozone layer layer of atmosphere taht absorbs most of the sun's UV light
X-rays high frequency; used in medicine
Gamma rays highest grequency; kills cells
opaque no light passes through; cannot se through
transparent allows light through; can see clearly through
translucent some light passes through; cannot see through clearly
reflection light bounces back
refraction light bends
prism bends visible light into int's colors; ROYGBIV
Created by: vsmith50
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