Science

3. A material in which a wave travels is called a?
7. causes the particles in a medium to move parallel to the direction that the wave travels
9. A space entirely devoid of matter
10. Between about 20 Hz and 20,000 Hz.Frequencies above this range are called
13. Is a wave that travels only through matter
14. Top of the wave
18. Bottom of the wave
19. The amount of sound energy that passes through a square meter of space in one second
21. Is a disturbance that transfers energy from one place to another without transferring matter
22. A straight line at an angle of 90° to a given line, plane, or surface
23. The regions where the particles are farthest apart are

1. The sections where the particles in the medium are closest together are
2. Side by side and having the same distance continuously between them
4. The maximum distance that the wave moves from its rest position
5. Is a back-and-forth or an up-and-down movement of an object
6. Is the number of times the pattern repeats in a given time
8. The distance between one point on a wave to the same on the next wave is the
11. A wave in which the disturbance is perpendicular to the direction the wave travels
12. An earthquake wave is called a
15. Is a longitudinal wave that can travel only through matter
16. Friction between the wind at sea and the water form
17. The perception of how high or low a sound seems is
20. Intensity, or ?, decreases as distance increases