Across
- 3. The widened part of a longitudinal wave
- 5. Needs a medium to travel
- 7. The compressed part of a longitudinal wave
- 9. The top part of a transverse wave
- 10. What makes things move
Down
- 1. Can travel without a medium
- 2. Moves up and down
- 4. What energy travels in
- 6. Goes back and forth
- 8. The bottom part of a transverse wave