Chapter 17

4. A _______ wave is a wave in which the disruptions move perpendicular to the direction of wave travel
5. the bending of waves around an obstacle or through an opening
7. a ______ wave carries energy through a physical medium. Can travel through solids, liquids and gases. examples are Sound waves, earthquake waves, and water waves
11. a region of lower density and pressure in a longitudinal (compression) wave
13. the maximum displacement from the equilibrium position during periodic motion
15. the time interval for a motion to repeat
18. the lowest point of a wave
19. a region of high density and pressure in a longitudinal (compression) wave
22. a change in wave direction due to a change in a wave’s speed as it enters a new medium
23. the bouncing of waves off a surface

1. the distance between two identical points on successive waves
2. simple ________ motion is periodic motion that is caused by a restoring force that is proportional to the displacement of the system
3. motion that repeats in equal time intervals
6. an increase in the amplitude of a vibration due to additional wave input
8. the _____ effect is the perceived change in the frequency of a wave due to the motion of the wave’s source or of the receiver
9. the combining of waves where they overlap
10. A _______ wave is a wave in which the disruptions are parallel to the direction of wave travel
12. the number of waves or cycles that occurs (f)
14. a disruption that carries energy from one location to another
16. a ______ wave is a wave that is moving even though the locations of the crests and troughs appear to be stationary
17. reducing the amplitude of periodic motion by applying a force that works against the motion
20. the highest point of a wave
21. frequency is measured in _______ (Hz) Cycles per second