Wave Crossword Puzzle

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Across
  1. 3. object that a wave travels through
  2. 4. for a transverse wave,one half the distance between a crest and a trough
  3. 7. wave that causes particles in matter to move at right angles to the direction the wave travels
  4. 8. wave that can travel through matter
  5. 10. SI unit for frequency
Down
  1. 1. mechanical wave that causes particles in matter to move back in forth along the direction of the wave
  2. 2. distance between one point on a wave and the nearest point moving with the same speed and direction
  3. 5. number of wavelength that pass a given point a given point in one second, measured in hertz
  4. 6. a wave that requires a medium to go through
  5. 9. wavelength x frequency speed= wave length divided by period