GCSE Physics - Waves

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Across
  1. 4. The unit for frequency
  2. 5. The speed of a wave
  3. 7. Device used to make a thin ray of light for experiments (3,3)
  4. 8. Type of EM wave used in communication (5)
  5. 12. Incoming wave
  6. 14. The maximum displacement from the resting point
  7. 15. The part of a longitudinal wave with particles most spread apart (11)
  8. 17. The stuff through which a wave travels
  9. 21. Type of wave where displacement is parallel to the wave motion
  10. 23. The part of a longitudinal wave with particles closest together (11)
  11. 24. The number of waves passing a point per second
Down
  1. 1. A wave bouncing off a boundary, eg mirror.
  2. 2. The distance from one peak on a wave to the same point on the next wave (10)
  3. 3. Type of electromagnetic wave that is used in medical imaging of the skeletal system (4)
  4. 6. A type of wave where displacement is perpendicular to wave motion
  5. 7. The change of speed of light due to change of medium, often causing direction change
  6. 9. Device used to measure angles (10)
  7. 10. The time for one complete wave to pass (4,6)
  8. 11. Energy that is not reflected or transmitted is __________ (8)
  9. 13. Type of earthquake wave that arrives first (1,4)
  10. 16. Device used to observe a fluctuating signal on a screen (12)
  11. 18. Xrays, UV and Gamma waves are dangerous because they are _____ (8)
  12. 19. Type of earthquake wave that arrives second (1,4)
  13. 20. Apparatus used to demonstrate waves in a lab (6,4)
  14. 22. A typical example of a longitudinal wave