waves

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Across
  1. 2. top of the wave
  2. 5. these waves require a medium
  3. 7. when a wave hits an object and bonces off
  4. 8. involves a change in the direction of waves as they pass from from one medium to another
  5. 10. when 2 or more waves come together
  6. 11. wave that consists on oscillations occurring perpendicular
  7. 12. occurs at any location along the medium where two interfering waves have displacement in the opposite direction
  8. 13. where some of the parts of the wave remain fixed and others vibrate
  9. 15. change in frequency of a wave
  10. 16. what the wave travels in
Down
  1. 1. wave that travels along a medium as crest and trough
  2. 2. 2 waves added together
  3. 3. waves which can travel through the vacuum of outer space
  4. 4. full cycle of a wave
  5. 6. how long or how short the period is mesured in hertz
  6. 9. bottom of the wave
  7. 14. distance from the rest position to the crest position
  8. 15. change in direction of waves as they pass thorugh an opening or around a barrier