Across
- 4. longitudinal
- 5. resonance
- 8. equilibrium
- 9. pendulum
- 11. destructive
- 13. medium
- 16. constructive
- 17. velocity
- 18. interference
- 19. extreme
- 20. wavelength
Down
- 1. amplitude
- 2. wave
- 3. standing waves
- 6. shm
- 7. frequency
- 10. superposition
- 12. transverse
- 14. period
- 15. acceleration