Science

2. an observed change in the frequency of a wave when the source or observer is moving
4. the lowest point in a wave
5. a pattern of vibration that simulates a wave that is standing still
7. the time it takes a complete cycle or wave oscillation to occur
9. a change in the direction of a wave when the wave finds an obstacle or an edge
10. the distance from any point on a wave to an identical point on the next wave
13. the highest point of a wave
15. the combination of 2 or more waves that results in a single move
18. a wave that requires a medium through which to travel

1. a superposition of 2 or more waves that produces an intensity equal to the difference of the intensities of the individual waves
3. a superposition of 2 or more waves that produces an intensity equal to the sum of the intensities of the individual waves
6. the max distance that the particles of a wave's medium vibrate from their rest position
8. is simply the bouncing back of a wave when it meets a surface or boundary
11. a wave in which the particles of the medium move perpendicularly to the direction the wave is traveling
12. a wave in which particles of the medium vibrate parallel to the direction of wave motion
14. the bending of a wave front as the wave passes between 2 substances in which speed of the wave differs
16. a wave that consists of oscillating electric and magnetic fields which radiate outward at the speed of light
17. a physical environment in which phenomena occurs