Vocabulary

2. Effect: this apparent change in frequency due to the motion of the source (or receiver)
4. Low points on a wave.
5. A repeating disturbance that transfers energy through matter or space
7. Wave: When the particles oscillate parallel to or along the direction of the wave.
8. The bending of a wave around an object
9. High points on a wave.
10. the time of a back-and-forth swing of a pendulum.
11. The number of vibrations an object makes in a unit of time.
12. The distance from the midpoint to the crest (or trough) of the wave.
17. interference: the crest of one wave overlaps the crest of another and their individual effects add together.

1. The bending of a wave caused by a change in its speed as it travels from one medium to another
3. The distance from the top of one crest to the top of the next one.
4. Wave: Whenever the motion of the medium is at right angles to the direction in which a wave travels.
6. Pattern is a regular arrangement of places where wave effects are increased, decreased, or neutralized.
13. Waves: Waves that can travel only through matter (sound waves)
14. interference: the crest of one wave overlaps the trough of another and their individual effects are reduced.
15. Curve: A pictorial representation of a wave.
16. Matter through which a wave travels