Across
- 3. /the sensation produced by stimulation
- 4. /the foamy top of a wave.
- 6. /a wave direction displacement is perpendicular
- 8. /the fundamental principle of physics
- 9. /a light wave
- 11. /set up
- 12. /the spreading out of waves
- 13. /the disappearance of a wave
- 15. /the act of reflecting
- 16. /the number waves
- 17. /the change direction of a ray
- 19. /the quality of an object or substance
- 20. /the ability to do work
- 21. /the amount of energy
- 22. /a long, narrow, open receptacle
Down
- 1. /the distance, measured in the direction of propagation of a wave
- 2. /the substance or substances
- 5. /Energy can change from one form to another
- 7. /disturbance on the surface of a liquid body
- 8. /something that makes things visible
- 10. /energy in a mechanical form.
- 14. /the maximum distance
- 18. /a middle state or condition