Waves

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Across
  1. 1. The number of full waves that pass in a given time
  2. 4. half the vertical distance from the crest to the trough
  3. 6. the change of direction of a wave when it hits a boundary
  4. 8. the transfer of energy from a wave to a medium
  5. 11. If the vibrational energy of a light wave is passed through the object, then the object appears clear
  6. 13. the spreading out of waves as they pass through an aperture or around objects
  7. 14. the principle that when two or more waves overlap in space, the resulting disturbance is equal to the algebraic sum of the individual disturbances
Down
  1. 2. the bending of waves as it passes from one medium to another
  2. 3. measurement from crest to crest or from trough to trough
  3. 5. The motion of the particles is perpendicular to the direction of the wave
  4. 7. The particles in a medium vibrate parallel to the direction of the wave
  5. 9. If an object allows some frequencies of visible light to pass through, but not others
  6. 10. The materials that do not allow transmission of light waves
  7. 11. Lowest point of a wave
  8. 12. Highest point of a wave