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waves vocabulary

TermDefinition
mechanical wave A wave that requires a medium to travel through; Examples are sound, water, and seismic
wave any disturbance that transmits energy through matter and space
medium something through which a wave travels; a solid, liquid, gas, or space
longitudinal wave A wave in which the particles of the medium vibrate in the same direction as (parallel to) the direction that the wave is traveling *think slinky, sound, UV, tsunami
transverse wave A wave where the particles of the medium vibrate in the opposite direction (perpendicular to) the direction that the waves is traveling *think stadium wave/up an down
electromagnetic wave a wave that can travel through the vacuum of space-does not require a medium but can go through one
electromagnetic spectrum the spectrum of waves that include UV (ultraviolet), infrared, x-rays, visible light, gamma, microwaves, radio waves
crest The highest point of a wave
trough The lowest point of a wave
compression the part of a longitudinal wave where the particles of the medium are crowded together
rarefaction the part of a longitudinal wave where the particles of the medium are further apart
amplitude The distance from the resting point of the medium to the crest or from the resting point of the medium to the trough
wavelength The distance from crest to crest or trough to trough in a transverse wave; the distance from compression to compression or rarefraction to rarefraction on a longitudinal wave
frequency The number of waves (crests) that pass by point in certain amount of time
hertz the unit of measurement (Hz) for frequency
wave speed The speed or (or velocity, v) of a wave
Created by: Ms. Burgoyne
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