Across
- 3. One of the places in a wave where the wave is lowest or the disturbance is greatest in the opposite direction from a crest
- 6. The distance from the midpoint to the maximum (crest) of a wave or, equivalently, from the midpoint to the minimum (trough)
- 9. An increase in the measured frequency of light from an approaching source
- 11. interference Addition of two or more waves when wave crests overlap to produce a resulting wave of increased amplitude
- 13. Term applied to two or more waves whose crests (and troughs) arrive at a place at the same time, so that their effects reinforce each other
- 15. The change in frequency of a wave due to the motion of the source or of the receiver
- 19. harmonic motion The back-and-forth vibratory motion of a swinging pendulum
- 21. wave A wave with vibration at right angles to the direction the wave is traveling
- 24. A cone-shaped wave produced by an object moving at supersonic speed through a fluid
Down
- 1. wave A wave in which the vibration is in the same direction as that in which the wave is traveling, rather than at right angles to it
- 2. The number of events (cycles, vibrations, oscillations, or any repeated event) per time; measured in hertz (or events per time). Inverse of period
- 4. The SI unit of frequency. One hertz (Hz) is one vibration per second
- 5. The distance from the top of the crest of a wave to the top of the following crest, or equivalently, the distance between successive identical parts of the wave
- 7. interference Combination of waves where crest parts of one wave overlap trough parts of another, resulting in a wave of decreased amplitude
- 8. The time required to complete a single cycle
- 10. pattern A pattern formed by the overlapping of two or more waves that arrive in a region at the same time
- 12. A wiggle in space and time
- 14. A decrease in the measured frequency of light (or other radiation) from a receding source
- 16. Term applied to two waves for which the crest of one wave arrives at a point at the same time that a trough of the second wave arrives. Their effects cancel each other
- 17. / A wiggle in time
- 18. curve A curve whose shape represents the crests and troughs of a wave, as traced out by a swinging pendulum that drops a trial of sand over a moving conveyor belt
- 20. One of the places in a wave where the wave is highest or the disturbance is greatest
- 22. The sharp crack heard when the shock wave that sweeps behind a supersonic aircraft reaches the listener
- 23. The V-shaped wave produced by an object moving on a liquid surface faster than the wave speed