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Casteel Light 1

SOL 5.3 Light

TermDefinition
energy Light is a form of ___________________.
transverse Light travels in_______________________ waves.
electric and magnetic It has both ________________________ fields and is referred to as electromagnetic radiation.
straight Light travels in _________________ paths called rays and do not need a medium (solid, liquid, or gas) through which to move.
ray the straight line that represents the path of light
beam a group of parallel rays
wavelength the distance between two consecutive waves, usually measured crest-to-crest or trough-to-trough
crest the highest point on a wave
trough a valley between two waves or the lowest point of a wave
frequency the number of waves passing a given point in one second
high _________ frequency light has ___________ energy.
low ____________ frequency light has ____________ energy.
higher The more wavelengths in a light wave in a given period of time, the _______________________ the energy level.
visible light Within the electromagnetic spectrum, the area that we see as light is known as "_____________________" or "white light".
red Of the visible light, ________ would have the longest wavelength.
violet __________________ has the shortest wavelength
wavelengths The white light/visible light that we see is really a combination of several different _______________________ of light traveling together.
ROY G BIV Acronym to remember order of visible light:
easily Light passes through some materials ______________________ and does not pass through other materials at all.
transparent Allows all/most light to pass though
translucent Allows some/partial light to pass through
opaque Does not allow light to pass through
reflect Light can bounce off an object or _________________.
refract Light can be bent or _______________.
Smooth and hard ____________________________________________ objects are better at reflecting light than other objects.
rough When light bounces off a __________________ surface, it is scattered in many directions
angle The Law of Reflection states that when light hits a surface, the _______________ at which it is reflected (bounces off) is the same as the angle at which it strikes.
color The _______________________ of an object is the color of the light it reflects.
Black ____________________ is when a material absorbs all of the visible light and no light is reflected back.
White _____________ is a reflection of all visible light together.
prism A _____________ can be used to refract white/visible light.
bent When the different wavelengths of light in white light pass through a prism, they are ____________________ at different angles (refracted).
Created by: lkcasteel