waves vocab

2. the spreading of waves around obstacles
4. the maximum displacement moved by a point on a vibrating body measured from its equilibrium.
10. a disturbance or oscillation that travels through space-time, accompanied by a transfer of energy.
11. unit for expressing the ratio between two physical quantities, usually amounts of acoustic or electric power, or for measuring the relative loudness of sounds.
12. relatively large selective response of an object or a system that vibrates in step or phase, with an externally applied oscillatory force
13. the point on a wave with the greatest positive value or upward displacement in a cycle
15. the attribute that wave oscillations have a definite direction relative to the direction of propagation of the wave
16. the distance over which the wave's shape repeats
17. the apparent difference between the frequency at which sound or light waves leave a source and that at which they reach an observer, caused by relative motion of the observer and the wave source.
19. the change in direction of a wave passing from one medium to another caused by its change in speed
20. where the object would naturally rest in the absence of force.

1. a wave with a repeating continuous pattern which determines its wavelength and frequency
3. unit of frequency
5. the number of cycles of a repeating event per unit of time.
6. a wave that is not capable of transmitting its energy through a vacuum.
7. the change in the direction of a wavefront at the interface between two different media, bouncing the wavefront back into the original medium.
8. the speed at which a wave travels
9. the time required for one complete cycle of vibration to pass a given point.
14. wave is a wave whose oscillations are perpendicular to the direction of the wave's advance
18. the minimum or lowest point in a cycle.