Across
- 3. a wave vibrating in the direction of propagation
- 6. block light from traveling through them
- 8. A substance that makes possible the transfer of energy from one location to another, especially through waves.
- 9. distance between identical points
- 11. the electromagnetic radiation with wavelengths between 380 and 750 nm which is visible to the human eye.
- 12. highest surface part of a wave
- 13. abrupt change in the direction of propagation of a wave that strikes the boundary between different mediums
Down
- 1. the lowest point on a wave
- 2. a type of energy made by vibrations
- 4. maximum displacement or distance moved by a point on a vibrating body
- 5. the change in direction of a wave passing from one medium to another caused by its change in speed
- 7. wave vibrating at right angles to the direction of its propagation
- 10. allow some light to travel through them