WAVES

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Across
  1. 4. the human perception of the intensity of a sound wave
  2. 5. how high or low something sounds
  3. 7. the identical point on a wave to the identical point on the next wave
  4. 10. occurs when a wave strikes an object or surface and bounces off
  5. 12. a material that allows no light to pass through
  6. 13. the point in a compressional wave where the matter is spread out
  7. 14. a type of wave in which the matter in the medium moves forwards and backwards along the direction the wave travels
  8. 16. has a surface that is curved inward
  9. 17. the bending of a wave around a barrier
  10. 18. rhythmic disturbance that carries energy but not matter
  11. 19. transparent object with at least one curved side that causes light to bend
  12. 20. a reflected sound wave
  13. 21. for a transverse wave one half the distance between a crest and a trough
  14. 22. the change in frequency that is due to the motion of sound
  15. 24. the number of wavelengths that pass a given point in one second
  16. 25. a type of wave in which the waves energy causes the matter in the medium to move up and down or back and forth at right angles to the direction the wave travels
Down
  1. 1. the ability of two waves to combine and form a new wave when they overlap
  2. 2. has a surface that is curved outward
  3. 3. waves that can travel through matter or space
  4. 6. the point in a compressional wave where the matter is squeezed together
  5. 8. a type of wave that can travel only through matter
  6. 9. a material that allows only some light to pass through
  7. 11. the bending of a wave as it moves from one medium to another because of a change in speed
  8. 15. a material that allows nearly all light to pass through
  9. 23. the matter through which a mechanical wave travels