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WILD WAVES

Physical Sciecne Vocabulary words for middle school students dealing with the study of waves.

AB
longitudinal wavein this wave, particles move back and forth (parallel to the path of the wave)
transverse wavein this wave, the particles move up and down (perpendicular ot the path of the wave)
amplitudethe distance the wave moves from the rest position
frequencythe number of vibrations the wave produces each second
cresthigh point of a transverse wave
troughlow point of a transverse wave
compressionareas in logitudinal waves where the molecules are close together
rarefactionsareas in logitudinal waves where the molecules are pulled farther apart
mediumthe matter through which a wave travels
wavelengththe distance between one point on a wave and the indentical point on the next wave
To measure a waves's speed you multiply the frequency by thewavelength
reflectionthis occurs when a wave "bounces" off a barrier
refractionthis occurs when a wave bends due to a change in medium
angle of incidencethe angle between the normal and the direction of the incoming wave
angle of reflectionthe angle between the normal and the direction of the reflected wave
wavea disturbance that travels through matter or space
standing waveswaves that from a pattern in which portions of the wave do not move but other portions move with increased amplitude

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