Waves

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Across
  1. 3. SI Unit for frequency
  2. 5. Waves that have to travel through a medium
  3. 7. For a transverse wave, one half the distance between a crest and a trough
  4. 8. The object that a wave travels through
Down
  1. 1. Mecahnical wave that causes particles in matter to move at right angles to the direction the wave travels
  2. 2. Distance between one point on a wave and the nearest point moving with the same speed and direction
  3. 4. Number of wavelengths that pass a given point in one second, measured in hertz
  4. 6. Disturbance that moves through matter and space and carries energy