Characteristics of waves

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Across
  1. 2. Longitudinal waves move this way
  2. 7. When the waves are compacted together
  3. 8. Mechanical waves require this to travel
  4. 9. When the waves are spread apart.
  5. 10. An disturbances that transmit energy through matter of space
  6. 11. Maximum Point on a wave
  7. 13. Sound waves travel faster in this medium
  8. 15. position The line that runs through the middle of the wave
Down
  1. 1. The height/sound of the wave
  2. 3. Wave Do not require a medium to travel through
  3. 4. Transverse waves moves this way
  4. 5. Distance between Crest to Crest or Trough to Trough
  5. 6. These types of waves are an example of electromagetic waves
  6. 12. The lowest point in a wave
  7. 14. These types of waves are an example of mechanical waves