Across
- 3. Moves back and forth quickly.
- 5. The part of a Longitudinal wave were the particles are spread out.
- 7. A solid, liquid, or gas which waves travel through.
- 8. The slowest medium sound waves travel through.
- 9. Vibrations which can be heard when they reach our ears.
Down
- 1. the way the waves travel
- 2. The region of a Longitudinal wave were the particles are close together.
- 3. The abscence of matter.
- 4. The fastest medium sound waves travel through.
- 6. The ability to do work.