Across
- 4. The number of occurrences of a repeating event per unit of time
- 6. The action of waves going apart or a decrease in the density of something
- 8. across
- 9. The rate at which someone or something is able to move or operate
- 11. a repeated back and forth or up and down motion
- 13. Waves Waves that only travel through a medium
Down
- 1. movement back and forth at a constant speed
- 2. the distance between two corresponding parts of a wave
- 3. The highest point of a wave
- 5. The action of waves coming together or being compressed
- 7. A disturbance that transfers energy from place to place
- 10. The lowest point on a wave
- 12. The ability to do work