Chapter 8

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Across
  1. 1. Angle of incidence = angle of reflection
  2. 4. when light is incident on a rough surface it is reflected in many directions
  3. 6. requires a medium through which to travel
  4. 7. describes how fast the disturbance travels through the medium
  5. 9. a wiggle in time
Down
  1. 1. vibration is in the direction of travel
  2. 2. the bending of a wave due to a change in the medium and or speed of the wave
  3. 3. vibration is at right angles to wave travel
  4. 5. is the propagation of a disturbance through a medium
  5. 8. the time it takes for a complete vibration