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# ch.25 vocab

vibration a repeating back and forth motion at an equilibrum position
wave a disturbance that is transmitted from one place to the next without the transportation of matter
peroid the time of a back and forth swing
simple harmonic motion back and forth motion of a pendulum
sine curve a pictoral representation of a wave
crest high points on a wave
trough low points on a wave
amplitude the distance from the equilibrum position to hte trough or crest
wave length is the distance from one crest to another
frequency the number of waves per second
hertz the unit of frequency
transverse wave when the moition of the medium is at right angles to the direction in witch the wave is traveling
longitudinal waves when the medium and the direction of the wave are going the same way
interference pattern is a regular arrangement of places where wave effects are increasing decreasing or stay the same
Created by: ksondermann
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