Waves

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Across
  1. 1. a measure of loudness
  2. 4. effect change in frequency as a sound moves
  3. 5. waves waves that move back and forth in the same direction
  4. 7. the amount of waves created in a certain amount of time
  5. 8. something for matter or energy to travel through
  6. 9. when particles are spread apart in a longitudinal wave
  7. 13. when two or more waves meet
  8. 15. waves waves that require a medium to travel through
  9. 17. when a sound wave produces when it bounces back
  10. 18. top of a wave
Down
  1. 2. waves waves that don't need a medium
  2. 3. waves waves that travel up and down as they move
  3. 6. when a wave bends around around edges of an object
  4. 10. when a wave bounces back
  5. 11. bottom of a wave
  6. 12. any disturbance that transmits energy
  7. 14. the distance between two crests or troughs in a row
  8. 16. the distance particles vibrate from the wave's rest position