I believe all of you are finished with your exams and will enjoy tomorrow off. I hope that you take time to study for your re-scheduled ENERGY EXAM which is on monday, Jan. 30th. Also Mrs. Price will most likely have her India test next week too. (study your notes and these terms and look at the links)
Energy
1. Temperature is the average KE of the molecules in a substance.
2. Black (dark) absorbs, white (light) reflects, rough absorbs, smooth reflects.
3. Conduction: energy transfer through molecular collisions; solids in contact.
4. Convection: energy transfer through differences in density. Circulating currents of gasses and liquids. (Occurs in the atmosphere and asthenosphere).
5. Radiation: energy transfer through space. How light energy travels here from the sun and the stars.
6. Energy moves from the source (highest temp.) to the sink (lowest temp.).
7. Kinetic Energy (KE): energy of motion. As velocity increases, KE also increases.
8. Potential Energy (PE): energy of position. As the position of an object increases away from the center of the earth, PE increases.
9. There is NO temperature change during a phase change.
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