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UNIT F TEST

WAVES

TermDefinition
Waves A repeating disturbance or movement that transfers energy through matter or space.
Transverse Wave In this wave, matter moves up and down and energy moves horizontally.
Longitudinal Wave Matter and energy move in the same direction.
Crest Highest point in a wave.
Trough Lowest point in a wave.
Amplitude how high the wave is.
Wavelenght Transverse wave: distance from crest to crest. Longitudinal wave: distance from compression to compression.
Rarefaction Where the wave is spread out.
Compression Where the wave is closer together.
Opaque Material that does not let any light pass through it.
Transparent Material that allows all the light to pass through.
Translucent Material that allows some light to pass through.
Reflection When light bounces off a shiny surface.
Refraction The bending or changing direction of light as it changes speed in a new medium (air, water)
Absorption Occurs when light strikes a material, and the energy that it carries is absorbed by the atoms of the material and is converted into thermal energy.
Frequency The number of waves passing a point each second. Unit is called Hertz.
What is the relationship between frequency of a wave and energy? Higher frequency equals higher energy.
What is the relationship between frequency of a wave and wavelength? Higher frequency equals smaller wavelength.
In what medium do light waves travel faster? In a vacuum (space) where there is no matter.
In what medium do sound waves travel faster? It travels faster through solids because particles are closer together.
What is the relationship between amplitude of a wave and energy? Higher energy equals higher amplitude.
Created by: user-1776559
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