Waves

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Across
  1. 2. how fast a wave travels from one point to another
  2. 7. 2 waves meet and cancel each other out
  3. 11. wave bounces back after hitting surface
  4. 12. frequency of wave changes due to source of the wave and the observer
  5. 13. 2 waves meet and combine
  6. 14. wave bends or spreads out as it encounters an obstacle or passes through opening
  7. 15. particles move perpendicular to direction of wave
Down
  1. 1. particles move parallel to wave direction
  2. 3. maximum displacement or height of wave from resting position
  3. 4. energy that is transmitted through space in form of electromagnetic waves
  4. 5. how many cycles or vibrations a wave completes in a certain time period
  5. 6. substance or material through wave travels
  6. 8. ranges from radio waves to gamma rays
  7. 9. waves change direction as it passes from one medium to another
  8. 10. distance between 2 corresponding points on a wave