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chp. 11 and 12 vg

QuestionAnswer
1. Radiation the energy that is transferred as electromagnetic waves, such as visible light and infrared wave
2. Particle – wave theory of light
3. Electromagnetic Spectrum all of the frequencies or wavelengths of electromagnetic radiation
4. Radio Waves EM waves with long wavelengths and low frequencies
5. AM Radio can reflect off the ionosphere .This helps AM waves travel long distances
6. FM Radio pass through the ionosphere. Therefore, FM waves cannot travel as far as AM waves
7. Ionosphere a region of the atmosphere that is above about 80 km and in which the air is ionized by solar radiation
8. Microwaves have shorter wavelengths and higher frequencies than radio waves
9. Radar radio detection and ranging, a system that uses reflected radio waves to determine the velocity and location of objects
10. Infrared Waves are absorbed by your skin when they strike your body
11. Visible Light is the very narrow range of wavelengths and frequencies in the electromagnetic spectrum that humans can see
12. Ultraviolet Light is another type of electromagnetic wave produced by the sun
13. X-Rays carry a great deal of energy and easily penetrate a variety of materials.
14. Gamma Rays the high-energy photon emitted by a nucleus during fission and radioactive decay
15. Law of Reflection the law that states that the angle of incidence is equal to the angle of reflection
16. Regular Reflection occurs when light beams are reflected at the same angle. When your eye detects the reflected beams, you can see a reflection on the surface
17. Diffuse reflection
18. Absorption in digestion, the process by which the end products of digestion are absorbed by the organism's fluids and cells
19. Scattering a process in which a particle (such as an electron, photon, or neutron) collides with a material and changes energy and direction
20. Transmission the passing of light or other form of energy through a medium
21. Transparent describes matter that allows light to pass through with little interference
22. Opaque describes an object that is not transparent or translucent; a material through which light cannot pass
23. Translucent describes matter that transmits light but that does not transmit an image
Created by: vincent1111
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