General Wave properties

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Across
  1. 4. Longitudinal waves have regions of high and low ___
  2. 7. Wave that travel in direction perpendicular to the direction of vibrations
  3. 9. Distance moved by a wave in one second
  4. 10. The maximum displacement from rest position
  5. 12. The highest point of a displacement-time graph
  6. 13. Example of longitudinal waves
Down
  1. 1. Line that joins all identical points on a wave
  2. 2. Waves carry ____ away from the wave source
  3. 3. The distance between two successive crests
  4. 5. Wave that travel in direction paralle to the direction of vibrations
  5. 6. The lowest point of a displacement-time graph
  6. 8. The number of complete oscillations per second
  7. 11. Time taken for one complete wave