Energy

3. The distance between corresponding points of two consecutive waves
6. The lowest part of the wave
11. Waves that can travel through an empty space
12. A disturbance that travels through a medium from one location to another location
13. The change in direction of a wavefront at an interface between two different media so that it returns to the medium from which it came
14. Occurs when waves bend around small obstacles, or when waves spread out after they pass through small openings
16. The storing of energy
17. Any substance that carries the wave, or through which the wave travels
19. A point on the wave where the displacement of the medium is at a maximum
20. wave A wave vibrating at right angles to the direction of its propagation

1. The frequency of a sound wave
2. Waves where the disturbance moves in the same direction as the wave
4. The entire range of electromagnetic waves from low to high frequency
5. The number of waves that pass a fixed point in unit time
7. Occurs when waves pass from one medium to another
8. The ability to do work
9. Waves that require a medium
10. The change in direction of a wave, caused by the change in the wave's speed
15. The length and width of waves as they move or vibrate
18. Makes up everything around you