Waves

5. The shortest time interval during in which the motion of the wave repeats itself
8. The number of complete vibrations per unit time
10. wave the displacement of the medium is perpendicular to the direction of wave propagation.
13. wave a wave with a repeating continuous pattern which determines its wavelength and frequency.
15. The maximum displacement of a particle of the medium from the rest or equilibrium position
17. the change in the direction of a wavefront at the interface between two different media, bouncing the wavefront back into the original medium.
18. the attribute that wave oscillations have a definite direction relative to the direction of propagation of the wave
19. unit of frequency
20. the point on the medium that exhibits the maximum amount of negative or downward displacement from the rest position.

1. is the shortest distance between two points that are “in phase”
2. wave The displacement of the particles of the medium is parallel to the direction of wave propagation.
3. segment of one cycle of a longitudinal wave during its travel or motion
4. decrease in volume of any object or substance resulting from applied stress.
6. the point on a wave with the greatest positive value or upward displacement in a cycle.
7. relatively large selective response of an object or a system that vibrates in step or phase, with an externally applied oscillatory force
9. unit for expressing the ratio between two physical quantities, usually amounts of acoustic or electric power, or for measuring the relative loudness of sounds.
11. the change in direction of a wave passing from one medium to another caused by its change in speed.
12. A disturbance that propagates through a material medium or space.
14. a description of the frequency of the sound.
16. effect 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.