Sound

2. Loudness or intensity of the sound.
8. An interference of waves with the same frequency and phase.
9. The distance between two successive points in a wave.
10. Something through which a wave can travel.
11. The medium has a decrease in pressure or density.
12. The human brain's idea of frequency.
13. The sound bounced back from the reflection of a sound wave.
15. A compressional wave where the direction of displacement stays in a horizontal pattern.
18. Series of musical tones where frequencies over lap one another.
20. When a single object causes another to vibrate at the same frequency as it.

1. Amount of times a wave or occilation occures.
3. The frequency of the sound is greater than 20,000 Hz.
4. An out of order or non pattern group of sounds
5. A change in frequency that is emitted b a scource that is getting closer or further away from the one who is hearing it.
6. Interference of two waves with equal frequency and opposite phase.
7. The measurement to express power or intensity.
14. The study of sound in physics.
16. The greatest number of displacement from zero during an occillation.
17. The part of physics that deals with sound waves.
19. How well the sound releases tone, pitch, and loudness.