Waves Tic-Tac-Toe

4. The material a mechanical wave moves through
9. Term applied to materials that allow light to pass through them in straight lines.
10. Waves A wave with vibration at right angles to the direction the wave is traveling.
12. How often a vibration occurs.
13. Addition of two or more waves when wave crest overlap to produce a resulting wave.
17. Spectrum A continuous range of waves
18. Bending of a wave around a barrier, such as an obstacle or the edges of an opening.
19. The unit of frequency.

1. wave A wave in which vibration is in the same direction as that in which the wave is traveling,rather than to right angles to it.
2. Distance from the top of one crest to the top of the next one.
3. Distance from the midpoint of the crest of wave.
5. Combination of waves where crests of one wave overlap troughs of another; resulting in a wave of decreased amplitude.
6. The bouncing back of a particle or a wave that strikes the boundary between two medias.
7. differences two different, but closely related waves
8. When two waves meet they overlap and interact.
9. Allowing light, but not detailed images, to pass
11. waves Back and fourth vibration motion
14. A pattern formed by the overlapping of two or more waves that arrive in a region at the same time.
15. The aligning of vibrations in a transverse wave, usually by filtering out waves of other directions.
16. of reflection The angle of incidence for a wave that strikes surface is equal to the angle of reflection. This is true for both partially and totally reflected waves