waves vocab

2. the quality in a sound of being deep, full, and reverberating.
3. is the spatial period of a periodic wave—the distance over which the wave's shape repeats
5. refraction is the change in direction of a wave passing from one medium to another or from a gradual change in the medium.
8. frequencies (in cycles per second, or hertz), by comparing the sounds being assessed against sounds with pure tones (ones with periodic, sinusoidal waveforms)
11. point on a wave is the maximum value of upward displacement within a cycle.
12. the moment at which the forward reaction of the equilibrium is equal to the backward reaction
15. is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated.
16. a wave of compression and rarefaction, by which sound is propagated in an elastic medium such as air.
18. is a property applying to transverse waves that specifies the geometrical orientation of the oscillations.
19. is a wave that is an oscillation of matter, and therefore transfers energy through a medium.

1. The amplitude of a sound wave
2. is the reduction of an item's density, the opposite of compression.
4. the process by which a beam of light or other system of waves is spread out as a result of passing through a narrow aperture or across an edge
6. the maximum extent of a vibration or oscillation, measured from the position of equilibrium.
7. is a test instrument the is used to measure the frequency or the wavelength of the electromagnetic or radio waves.
9. is the opposite of a crest, so the minimum or lowest point in a cycle.
10. The time it takes for two successive crests
13. is the number of occurrences of a repeating event per unit of time
14. a wave vibrating in the direction of propagation.
17. shear waves are a type of elastic wave and are one of the two main types of elastic body waves