Tristen's Waves Crossword Puzzle

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Across
  1. 3. area of longitudinal wave where the coils are close together
  2. 4. time
  3. 6. when 2 waves cancel each other out by being opposites
  4. 7. point of no motion
  5. 9. the number of times something occurs in a given period of time
  6. 11. a wave which doesn't need a medium to travel
  7. 14. distance between neighboring crests
  8. 16. particles spread apart in a longitudinal wave
  9. 17. magnitude of displacement from origin
  10. 18. waves move the medium parallel to the direction in which the waves travel
Down
  1. 1. 2 waves combined by adding their displacement together
  2. 2. the motion of the medium is perpendicular to the direction of the wave
  3. 5. lowest point of a wave
  4. 8. highest point on a wave
  5. 10. waves that require a medium
  6. 12. the material which a wave travels through
  7. 13. some points remain fixed, some vibrate
  8. 15. position of maximum displacement