Crossword

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Across
  1. 2. the process when one thing becomes part of another thing
  2. 4. the number of waves that pass a fixed point in unit time
  3. 6. the distance from the center line to the top of a crest or to the bottom of a trough
  4. 7. Wave, a wave that is an oscillation of matter, and therefore transfers energy through a medium
  5. 8. the opposite of a crest
  6. 10. the process of light bending around an obstacle
  7. 11. Wave, a wave whose oscillations are perpendicular to the direction of the wave's advance
  8. 13. where the particle motion is in the same direction in which the wave is propagating
  9. 14. point on a wave is the maximum value of upward displacement within a cycle
  10. 15. Wave, A wave consisting of a periodic disturbance or vibration
Down
  1. 1. the passage of electromagnetic radiation through a medium
  2. 3. the substance that transfers the energy
  3. 5. the reduction of an item's density, the opposite of compression
  4. 9. the distance between identical points in the adjacent cycles
  5. 12. the change in direction of a wave passing from one medium to another