Physics- Waves Crossword

3. The condition of a system whe neither its state of motion nor energy change with time.
4. The phenomina that occurs when a wave encounters an obstical/opening.
5. The change in frequency of a wave in relation to an observer.
8. The opposite of a Crest.
9. The phenomeon of increased amplitude.
10. The speed of something in a given direction.
13. A group of atoms banded together.
14. A minute portion of matter.
18. Movement back & forth at a regular speed.
19. Geographic coordinate thats the specific east-west position on the globe.

1. Diminition in the density of something (air or gas.
2. The measure of the height of a wave.
6. The # of occurences of a repeating event per unit of time.
7. The max value of upward displacement within a cycle.
8. A wave whose ocillations are perpendicular to the waves advance.
11. Application of balanced inward forces to different points on a material.
12. The fact/phenominon of light, radio waves, etc being deflected in passing obliquely through the interface between one medium and another.
15. The distance between crests of a wave.
16. A propagating dynamic disturbance of one or more quantities.
17. The magnitude of the rate of change.