Ch.25 Waves and Vibrations

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