sound waves and energy

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Across
  1. 1. a type of wave, a combination of a longitudinal and transverse wave.
  2. 3. a type of wave, particles of the medium move perpendicular to the direction of the movement of the wave
  3. 5. a regular pattern of motion created by a vibratory disturbance
  4. 7. a gas liquid or solid substance
  5. 8. a type of wave, particles of the medium move in the same direction as the movement of the wave
  6. 9. the length of one wave cycle
  7. 10. the resting position
  8. 12. the number of times a wave cycles in one second
Down
  1. 2. a type of wave created by oscillations of electric and magnetic fields
  2. 4. the height of a wave
  3. 6. a repeating and regular motion
  4. 11. a type of wave produced by a mechanical movement or a vibratory object