Unit 1 Vocab-Waves

1. bouncing back of a wave from a surface.
3. waves, a wave that is perpendicular to the direction it is traveling.
5. light, includes all colors of the rainbow; red, orange, yellow, green, blue, indigo, and violet.
8. radiation, electromagnetic radiation with wavelengths longer than those of visible light.
9. waves, a wave that oscillates back and forth parallel to the direction it travels.
11. the process by which a disturbance is transmitted through a medium such as air or water.
12. to vibrate or swing back and forth or up and down, from one extreme to another.
14. bending of a wave as it moves across the boundary between one medium and another.
15. describes matter that allows light to pass through it easily.
17. number of wave vibrations (oscillations) produce in one second.
19. regions where the coils are closer together.
22. rays, penetrating form of electromagnetic radiation from the radioactive decay of atomic nuclei.
23. distance from any point on one wave to a corresponding point on the next wave.
24. waves, a wave of energy passing through Earth, caused by an earthquake.
26. describes matter that allows some, but not all, of the light that hit it to pass through.

1. regions where the coils are farther apart.
2. passage of light through matter.
4. energy that travels through matter as mechanical waves, and can be heard by the ear.
6. a back and forth motion that travels from one place to another.
7. any material that energy travels through (ocean, string, rope, slinky, etc.).
10. total distance a wave moves from its resting position.
13. the peak, or highest point of a transverse wave.
15. the valley, or lowest point between two crests is the trough.
16. the transfer of energy of a wave to matter as the wave passes through it.
18. radiation, part of the electromagnetic spectrum, which is invisible to humans.
20. describes matter that light does not pass through.
21. ability to do work.
25. spectrum, full range of electromagnetic waves.