Across
- 2. a wave vibrating at right angles to the direction of its propagation
- 3. vibrations that travel through the air
- 5. the throwing back by a body or surface of light, heat, or sound without absorbing it.
- 9. distance between waves
- 10. not able to be seen through
- 11. the low point of the wave
- 12. the length of the wave from rest point
- 13. the change in direction of a wave passing from one medium to another
Down
- 1. able to be seen through
- 4. a substance that makes it possible to travel through air
- 6. the highest point of the wave
- 7. electromagnetic radiation
- 8. a wave vibrating in the direction of propagation