Chaper 15 Vocab

3. bouncing of a wave off a surface
4. the change in direction of a wave when it travels by the edge of an object or through an opening
5. the change in direction of a wave that occurs as the wave changes speed when moving from one medium to another
9. the transfer of energy by a wave to the medium through which it travels
10. a disturbance that transfers energy from one place to another without transferring matter.
12. the lowest points on a transverse wave
13. the passage of light through an object
16. makes the particles in a medium move parallel to the direction that the wave travels
17. a material in which a wave travels
18. regions of a longitudinal wave where the particles are farthest apart
19. the maximum distance that a wave moves from its rest position
20. the number of wavelengths that pass by a point each second

1. when waves that overlap combine, forming a new wave
2. a wave that can travel only through matter
6. a wave that can travel through empty space and through matter
7. regions of a longitudinal wave where the particles in the medium are closest together
8. when a wave is reflected from a surface, the angle of reflection is equal to the angle of incidence
11. the highest points on a transverse wave
14. the distance from one point on a wave to the same point on the next wave
15. a wave in which the disturbance is perpendicular to the direction the wave travels