Waves

2. The spreading out of waves as they pass through an aperture or around objects.
6. The number of waves that pass a point in a certain period of time.
7. The maximum displacement of points on a wave.
10. A wave vibrating in the direction of propagation.
12. Spectrum- The range of wavelengths or frequencies over which electromagnetic radiation extends.
13. The interference of two or more waves of equal frequency and phase.
14. The substance that transfers the energy or light from one substance to another.

1. The sum of two waves can be less than either wave, alone, and can even be zero.
3. the change of direction of propagation of a wave when it meets a boundary.
4. The bending of waves as it passes from one medium to another.
5. speed-The distance the wave travels in a given amount of time,
8. A wave vibrating at right angles to the direction of its propagation.
9. radiation-A wave of electric and magnetic fields propagating at the speed of light c through empty space.
11. Effect- the increase (or decrease) in the frequency of sound, light, or other waves as the source and observer move towards (or away from) each other.