Across
- 2. pushing the particles in the material closer together so that there are regions of high density (and pressure)
- 4. Periodic motion that is caused by a restoring force that is proportional to its displacement (back to equilibrium)
- 6. waves in which the disruption moves perpendicular to the direction of wave travel
- 7. a wave that is moving even though the locations of the crests and troughs appear to be stationary
- 9. a wave that moves through a physical medium and carries energy by disturbing the matter of the medium
- 12. restoring force causing regions of lower density (and pressure)
- 15. when the driving force causes the object to vibrate at greater and greater amplitudes
- 17. the time interval for the motion to repeat
- 19. the combining of waves where they overlap
- 22. the number of waves, or cycles that occur each second
- 23. motion that repeats in equal time intervals
Down
- 1. the disruption occurs parallel to the direction of wave movement
- 3. apparent change in frequency of a wave due to the motion of the source or the receiver
- 5. cycles per second
- 8. bouncing of waves off a surface
- 10. mass is at its maximum displacement from the equilibrium position
- 11. the distance between two identical points on successive waves
- 13. a disruption that carries energy from one location to another
- 14. a force that intentionally works against the motion.
- 16. the highest point of each wave
- 18. the bending of waves around an obstacle or through an opening
- 20. the wave changes direction due to the change in medium
- 21. the lowest point of each wave