CHAPTER22SCIENCEVOCAB/BRIANA

5. the bouncing back of a wave after it strikes a barrier or an object
6. the bending of waves around a barrier or through an opening
12. the passing of light though matter
14. means “below red”
17. the release of light energy by particles of matter that have absorbed energy
18. despite their name, microwaves are not the shortest EM waves
21. the bending of a wave as it passes at an angle from one medium to another
23. can reflect off the ionosphere. This helps AM waves travel long distances
26. The idea that light can act as either particles of waves is known as the particle-wave theory
27. a material that gives a substance it’s color by absorbing some colors of light and reflecting others

1. the transfer of energy carried by light waves to particles of matter
2. the entire range of electromagnetic waves
3. means “beyond violet”
4. the angle between the incident beam and the normal
7. a wave that can travel through space or matter and consists of changing electric and magnetic fields
8. EM waves with long wavelengths and low frequencies
9. the very narrow range of wavelengths and frequencies in the electromagnetic spectrum that humans can see
10. the transfer of energy though matter or space as electromagnetic waves such as visible light and infrared waves
11. a wave interaction that occurs when two or more waves overlap
13. contains all colors of light
15. pass through the ionosphere. FM waves cannot travel as far as AM waves
16. gamma rays are produced by some nuclear reactions
19. the law that states that the angle of incidence is equal to the angle of reflection
20. the term describing matter that transmits light but also scatters the light as it passes through matter
22. the term describing matter though which light is easily transmitted
24. A tiny “packet” of energy that is released by an electron that moves to a lower energy level on an atom
25. the term describing matter that does not transmit any light