Waves Revision

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Across
  1. 3. The distance between one peak and the subsequent peak
  2. 6. a sound with a frequency above 20000Hz
  3. 7. These waves oscillate at right angles to the direction of energy transfer
  4. 9. The number of waves which pass a point in 1 second
  5. 10. an area of low pressure in a wave
Down
  1. 1. the maximum displacement of a wave from the equilibrium position
  2. 2. The unit used to measure frequency
  3. 4. These waves oscillate along the direction of energy transfer
  4. 5. frequency x wavelength
  5. 8. The time taken for one complete wave to pass a point
  6. 11. an area of high pressure in a wave