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Light Test Revision

Light & Colour test revision

TermDefinition
period how long it takes to go through its full motion once
frequency how many waves go by in a second
wavelength the distance between one crest to the next
amplitude the distance from the midline to the top of the wave
transparent Allowing nearly all light to pass through
transluscent Allowing only some light to pass through
opaque Not allowing light to pass through
waves how energy travels
electromagnetic light spectrum how different types of radiation is categorised
light waves can pass through a vacuum
sound waves cannot pass through a vaccuum
the law of reflection the angle of the reflected ray is equal to the angle of the incident ray
angle of incidence angle between the incident ray and the normal line
angle of reflection angle between the reflection ray and the normal line
the normal line the line at 90 degrees to a surface
the visible spectrum the frequency of light we can see
lowest frequency of light red
highest frequency of light violet
how colour is seen objects are a certain colour because it reflects that specific wavelength of light and absorbs all others
white light refelects all colours
black light absorbs all colours
Created by: justineforrest
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