Monday, July 18, 2011

4SBS #1-8 p360


1. Electromagnetic radiation is equal to energy; therefore, more electromagnetic radiation means more energy.

2. Spectrum is a good descriptor of the types of energy found in electromagnetic radiation because they can change and decrease and increase often.

3. Visible radiation can energize electrons in some chemical bonds such as chlorophyll molecules of plants inorder to feed them.

4. a) Radio waves, microwaves, infrared, ultraviolet, X-rays, gamma rays.
b) Radio waves, microwaves, and x-rays mostly improve life for humans while infrared and UV-C and UV-B rays can harm humans greatly.

5. UV light can break down certain chemical bonds of impurities and can sterilize these tools whereas visible light can only be absorbed and on occasion energize electrons.

6. Infrared is not absorbed at all, rather it is trapped within the atmosphere, visible radiation is mostly absorbed and easily too, UV is absorbed as well however more easily with UV-B instead of A or C.

7. Solar radiation warms the earth's surface and also provides the energy needed for the Hydrological Cycle to occur.

8. a) help
b) help

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