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Unit 3:Sound & Light

Study for Unit 3 test!!

TermDefinition
vacuum a space without matter
visible light only wave we can see on the electromagnetic spectrum
ROYGBIV visible light in order
red color with the longest wavelength
violet color with the shortest wavelength
white color you see when all colors are reflected
black color you see when all light is reflected
radio waves longest wave on the electromagnetic spectrum
gamma waves shortest wave on the electromagnetic spectrum
reflection light bounces off the surface of a material; why we see color
refraction light goes through and object and bends
solid medium in which sound waves travels fastest
prism uses white light
soft materials absorb sound
speed of light faster than the speed of sound
transparent an object all light passes through
translucent an object some light passes through
opaque an object no light passes through
frequency determines the pitch of a sound
crest the high point of a wave
trough the low point of a wave
amplitude the height of a wave
wavelength the length of a wave
air medium in which sound waves travel slowest
mechanical waves sound and seismic wave; require matter to travel
electromagnetic spectrum waves that do not require matter to travel, includes visible light
vacuum an area or space without matter
Created by: marvelousO'Neill
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