Across
- 2. The bouncing off of a wave from a surface. An echo is a reflection of sound.
- 3. The characteristic sound of a musical instrument, which is governed by the number and relative intensities of partial tones.
- 7. The distance between successive crests, troughs, or identical parts of a wave.
- 8. A stationary wave pattern formed in a medium when two sets of identical waves pass through the medium in opposite directions.
- 9. Result of superposing different waves, often of the same wavelength. Constructive interference results from crest-to-crest reinforcement; destructive interference results from crest-to-trough cancellation.
- 10. A wiggle in time
- 11. A wiggle in space and time
- 13. A condensed region of the medium through which a longitudinal wave travels.
- 17. The sensation of a sounds frequency
- 19. A region of lessened pressure in the medium through which a longitudinal wave travels.
- 20. The time required for a vibration or a wave to make a complete cycle; equal to 1/frequency.
Down
- 1. The change in frequency of wave motion resulting from motion of the sender or the receiver.
- 4. A wave in which the medium vibrates parallel to (along) the direction in which the wave pulses travel. Sound consists of longitudinal waves.
- 5. The speed with which waves pass a particular point: Wavespeed = frequency x wavelength
- 6. A wave in which the medium vibrates perpendicular (at right angles) to the direction in which the wave travels. Light consists of transverse waves.
- 12. For a wave or vibration, the maximum displacement on either side of the equilibrium.
- 14. The loud sound resulting from a shock wave.
- 15. For a vibrating body or medium, the # of vibrations per unit time. For a wave, the # of crests that pass a particular point per unit time.
- 16. The bending of a wave, either through a non-uniform medium or from one medium to another, caused by differences in wave speed.
- 18. The SI unit of frequency. One hertz(Hz) equals one vibration per second.