Unit 9: Waves & Light (L9.1-L9.3)

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Across
  1. 1. How high or low a tone sounds, depends on frequency
  2. 5. Interference that reduces displacement (smaller wave)
  3. 8. Region where particles become more tightly packed
  4. 9. the pitch when source is closer
  5. 11. the pitch when source is farther
  6. 14. Substance through which vibrations travel
  7. 16. the amplitude when closer
  8. 18. Meeting and combining of waves in the same medium
  9. 21. Princpiple of waves that states that the result equals sum of overlapping effects
  10. 24. Particle motion perpendicular to travel direction of wave
  11. 25. Interference that increases displacement (bigger wave)
  12. 26. Wave that requires medium to move through
  13. 27. Depends on strength of vibrations (amplitude) heard
Down
  1. 2. Lowest point of a wave
  2. 3. Highest point of a wave
  3. 4. Time for one complete cycle
  4. 6. Normal resting position before disturbance
  5. 7. Maximum displacement from resting position
  6. 10. Region where particles become less densely packed
  7. 12. Transfers energy through vibrations or disturbances
  8. 13. Distance between matching points (complete wave) in cycles
  9. 15. Wave that travels without needing a material medium
  10. 17. Change in observed tone due to motion
  11. 19. Particle motion parallel to travel direction of wave
  12. 20. Number of cycles each second
  13. 22. Vibration that can be heard by ears
  14. 23. Describes wave that repeats in a regular pattern over time