Waves activity 1

4. Particle motion is perpendicular to the direction of wave travel.
5. Distance sound travels per unit time (m/s); depends on the medium, not frequency.
6. A cyclical transfer of energy that propagates through a medium.
9. Time it takes for one full cycle of compression and rarefaction; reciprocal of frequency.
13. Two waves not fully in phase or out of phase combine into an intermediate wave.
14. Force per area; increases during compression, decreases during rarefaction.
15. Particle motion is parallel (along) to the direction of wave travel.
16. Mass per volume; particle density increases in compression, decreases in rarefaction.

1. Two waves out of phase cancel each other out.
2. Number of cycles per second (Hz); determined by the sound source.
3. Back-and-forth displacement of particles around their original position.
4. Heat generated as the wave loses energy to the medium
7. Requires a medium (like air, water, or tissue) to travel.
8. A longitudinal, mechanical wave that travels through compressions and rarefactions.
10. Maximum variation of a variable from its mean value (strength of the wave).
11. Two waves in phase combine to make a larger wave.
12. Physical distance from one compression to the next; depends on both frequency and propagation speed.