Waves

2. the lowest part of a wave
6. the maximum distance moved by a point on a wave measured from its equilibrium
8. determined by the frequency of its sound wave
12. the number of waves that pass through an area in an amount of time
13. the highest part of a wave
14. distance from trough to trough or from crest to crest
15. determined by the energy of its sound wave

1. a movement of energy passing through a medium (like air) created by object vibrations and producing pressure waves
3. the increase or decrease in the frequency of sound, light, or other waves as it moves towards or away from the observer
4. the spreading of waves around obstacles
5. the transfer of the energy of a wave to matter as the wave passes through it
7. measure of sound intensity (amplitude)
9. 1 wave
10. the change in direction of a wave passing from one medium to another caused by its change in speed
11. forms of moving energy made of tiny particles called photons