Across
- 2. Invisible to the human eye
- 5. Change of direction of a wave.
- 7. A push or pull.
- 9. The rate at which something moves.
- 11. Top of a wave
- 12. Object changes direction over time.
Down
- 1. The spread of waves around obstacles
- 3. The distance moved by a point such as a spring.
- 4. Transmits energy to one place to another.
- 6. The amount of time a repeating event happens.
- 8. The transfer of energy of the wave to matter.
- 10. Change in velocity.