Waves Unit Vocabulary

1. the time required for one complete cycle of vibration to pass a given point.
6. the lowest point below the rest position.
8. particle Duality, the concept in quantum mechanics.
10. the change in direction of a wave passing from one medium to another
11. Interference, a pair of light or sound waves pass through each other.
15. the point on a wave with the greatest positive value or upward displacement in a cycle.
16. the number of occurrences of a repeating event per unit of time.
19. Wave, a wave vibrating in the direction of propagation.
21. the reduction of an item's density.
22. a vibrating system forces another system around it to vibrate with greater amplitude.
23. the distance over which the wave's shape repeats.
24. simply a point along a medium which undergoes maximum displacement.

1. a bundle of electromagnetic energy.
2. the change in direction of a wavefront at an interface between two different media
3. effect, an increase or decrease in the frequency.
4. the spreading out of waves as they pass through an aperture or around objects.
5. Interference, when two waves superpose to form a resultant wave.
7. the sensation of a frequency.
9. Interference, the net effect of the combination of two or more wave trains.
12. the repetitive variation.
13. the matter that a wave travels through.
14. the maximum displacement or distance moved by a point.
17. a point along a standing wave where the wave has minimum amplitude.
18. Wave, a wave vibrating at right angles to the direction of its propagation.
20. a region in a longitudinal wave where the particles are closest together.
23. Pulse, a special non-periodic waveform that typically has one major crest.