Waves Crossword

3. the part in a longitudinal wave where the particles are spread apart.
4. Highest point of a transverse wave.
7. A longitudinal wave that we can hear.
8. The frequency of a sound as a listener perceives it.
9. A unit that compares the intensities of different sounds.
10. The time required for one complete cycle of a periodic motion.
12. The part of a longitudinal wave where the particles of the medium are close together.
13. A wave in which the vibration of the medium is parallel to the direction the wave travels.
14. Waves that require a medium through which to travel.
17. The unit of frequency of waves.
18. The bending of a wave as its speed changes when passing from one medium to another.
21. Found by multiplying wavelength and frequency.
23. Height of a wave from the rest point.
24. The rate at which a wave's energy flows through a given unit of area.

1. A wave that causes a medium to vibrate at right angles to the direction in which the wave travels.
2. The bending of a wave as it moves around an obstacle or passes through a narrow opening.
5. The bouncing back of a wave when it hits a surface through which it cannot pass.
6. The distance between two corresponding parts of a wave.
11. A change in sound frequency caused by motion of the sound source, motion of the listener, or both.
15. Used to determine the distance between objects underwater.
16. a wave that appears to stand in one place, and does not seem to move through a medium.
19. The lowest point of a transverse wave.
20. The number of complete wavelengths that pass a point in a given time.
22. Material through which a wave travels.