Physical Science

4. The number of cycles or vibrations per unit of time
5. The bouncing back of a ray of light
6. A wave in which the particles of the medium move perpendicularly to the direction the wave is traveling
9. A wave that consists of oscillating electric and magnetic fields which radiate outward at the speed of light
10. A wave in which the particles of the medium vibrate parallel to the direction of wave motion
13. A physical environment in which phenomena occur
15. The combination of two or more waves that results in a single wave
17. A superposition of two or more waves that produces an intensity equal to the difference of the intensities of the individual waves
18. The distance from any point on a wave to an identical point on the next wave
19. The bending of a wave front as the wave front passes between two substances in which the speed of the wave differs

1. A superposition of two or more waves that produces an intensity equal to the sum of the intensities of the individual waves
2. A three dimensional surface whose points are equally distant from the center
3. The maximum distance that the particles of a wave's medium vibrate from their rest position
7. In physics the time it takes a complete cycle or wave oscillation to occur
8. A wave that requires a medium through which to travel
11. A change in the direction of a wave when the wave finds an obstacle or an edge
12. An observed change in the frequency of a wave when the source or observer is moving
14. Following one after the other
16. The highest point of a wave
20. The lowest point of a wave