Chapter 9

3. bending of a wave around an object
5. repeating disturbance that transfers energy through matter or space
6. locations where interfering waves always cancel
7. number of wavelengths that pass a fixed point each second
12. matter in the medium moves back and forth along the same direction
15. process of two or more waves overlapping and combining to form a new wave
16. waves that can travel only through matter
19. low points of a transverse wave

1. particles in the medium move back and forth at right angles to the direction the wave travels
2. less dense region of a longitudinal wave
4. bending of a wave caused by a change in its sped as it travels from one medium to another
8. process by which an object is made to vibrate by absorbing energy at its natural frequencies
9. special type of wave pattern that forms when waves equal in wavelength and amplitude but travel in opposite directions and continuously interfere with each other
10. matter through which a wave travels
11. more dense region of a longitudinal wave
13. amount of time it takes one wavelength to pass a point
14. distance between one point on a wave and the nearest point just like it
17. high points of a transverse wave
18. measure of the size of the disturbance from a wave