Across
- 3. wave that moves perpendicular to its direction
- 6. low point
- 7. region where the particles are closer
- 9. wave that moves parallel to its direction
- 10. distance from one crest or trough to the next
- 11. substance the wave travels through
Down
- 1. high point
- 2. wavelengths per second
- 4. region where the particles are spread out
- 5. distance from the restpoint to the crest or trough
- 8. disturbance that travels through a medium