Across
- 2. molecules in sound wave spread further apart
- 6. particles move perpendicular to the wave direction
- 7. material that carries waves from one place to another
- 8. a type of wave that requires a medium
Down
- 1. movement of wave through a medium
- 3. type of wave where particles move in the same direction as the wave
- 4. molecules in sound wave are pushed closer together
- 5. Crystals in transducer