Physical Science

4. A superposition of two or more waves that produces an intensity equal to the difference of the intensities of the individual waves
6. In physics the time it takes a complete cycle or wave oscillation to occur
7. A wave in which the particles of the medium move perpendicularly to the direction the wave is traveling
11. A physical environment in which phenomena occur
12. A change in the direction of a wave when the wave finds an obstacle or an edge
13. The bending of a wavefront as the wavefront passes between two substances in which the speed of the wave differs
15. The distance from any point on a wave to an identical point on the next wave
17. An observed change in the frequency of a wave when the source or observer is moving Following one after the other
18. The number of cycles or vibrations per unit of time

1. The combination of two or more waves that results in a single wave
2. A wave in which the particles of the medium vibrate parallel to the direction of wave motion
3. The maximum distance that the particles of a wave's medium vibrate from their rest position
5. A wave that requires a medium through which to travel
8. A three-dimensional surface whose points are equally distant from the center
9. A wave that consists of oscillating electric and magnetic fields which radiate outward at the speed of light
10. The bouncing back of a ray of light
14. The highest point of a wave
16. The lowest point of a wave