Waves

2. the distance the wave travels in a given amount of time
5. a form of energy that propagates as both electrical and magnetic waves traveling in packets of energy called photons
6. Parallel to direction of wave
8. the length of one cycle of the wave
10. the spreading out of waves as they pass through an aperture or around objects
12. happens when two waves overlap in such a way that they combine to create a larger wave.
14. the substance that transfers the energy or light from one substance to another substance
15. the increase or decrease in the frequency of all waves as the source and observer move towards or away from each other

1. happens when two waves overlap in such a way that they cancel each other out.
3. distance between the resting position and the maximum displacement of the wave
4. perpendicular to direction of wave
7. the change in the direction of a wave passing from one medium to another
9. The complete range of all types of radiation that has both electric and magnetic fields and travels in waves.
11. the number of waves that pass a fixed point in time
13. the return of light or sound waves from a surface