Across
- 3. bouncing back of wave
- 4. action of restricting the vibrations
- 7. waves, elastic wave produced by an earthquake
- 9. waves, a medium through which to travel
- 10. allows light to pass through
- 14. allowing light but not shapes
Down
- 1. bending of light
- 2. distance from any point on a wave to the next
- 5. not transparent or translucent
- 6. material through which a wave can travel
- 8. Wave, caused by vibrations
- 11. particles of a wave's medium vibrate
- 12. number of cycles or vibrations per unit of time
- 13. Waves, electromagnetic wave