Waves crossword

2. the bouncing of a wave off a surface
4. Makes the particles in a medium move parallel to the direction that the wave travels
7. The regions of a longitudinal wave where the particles in the medium are closest together
10. The number of wavelengths that pass by a point each second
11. The highest points on a transverse wave
14. A wave that can travel only through matter
16. the change in direction of a wave that occurs as the wave changes speed when moving from one medium to another
17. The change in direction of a wave when it travels by the edge of an object or through an opening
19. the distance from one point on a wave to the same point on the next wave
20. a disturbance that transfers energy from one place to another without transferring matter

1. a wave that can travel through empty space and through matter
3. A wave in which the disturbance is perpendicular to the direction the wave travels.
5. when a wave is reflected from a surface, the angle of reflection is equal to the angle of incidence
6. the transfer of energy by a wave to the medium through which it travels
8. A material in which a wave travels
9. When waves that overlap combine forming a new wave.
12. the passage of light through an object
13. The maximum distance that moves from its rest position
15. The lowest points on a transverse wave
18. The regions of a longitudinal wave where the particles are farthest apart