Waves and Sound Crossword

A means of transferring energy from one point to another
Particles on the wave vibrate perpendicular to the direction that the wave is moving
Particles on these waves vibrate parallel to the direction that the wave is moving (through a series of compressions and rarefactions)
Require a medium to travel through (Ex: water waves and sound waves) 
Do not require a medium (ex: light and radio waves)
The distance from a point on one wave to the identical point on the next wave (crest to crest)
The number of waves passing each second; it is measured in Hertz
Maximum displacement of a wave from the rest position or the size of the wave or how large the wave is
Waves will bounce off barriers an angle equal to the angle they strike the barrier
Bending of a wave as it passes at an angle into another medium
Bending of waves around barriers (this occurs to a greater degree with longer waves such as sound)
Waves add as they meet
The waves partly or completely cancel as they pass
Change in frequency is heard when the source of sound and the person receiving the sound are in relative motion
material through which a wave travels
Unit of measurement for frequency
a disturbance that travels through a medium as a longitudinal wave
perception of the frequency of sound
The high point of a wave.
The low point of a wave