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