Across
- 2. sound waves travel fastest in a __________
- 3. waves do not transfer
- 4. sound waves cannot travel through this
- 5. sound wave speed increaes with increase in __________
- 7. A wave type where the movement of particles (molecules) is in the same direction as the energy
- 8. sound waves travel slowest in a _____
- 9. sound waves are similar to waves on a _______
Down
- 1. mechanical waves require this
- 3. sound waves pass energy by colliding (hitting) with these
- 4. the way sound waves are produced
- 6. waves transfer this