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Objectives for Unit VII - Energy By the time we finish the labs and related materials in this unit, students should be able to: 1. Understand conservation of energy (Energy is conserved, but not in usable forms). Majority of energy on earth comes from the sun (fusion)… eventually turns in to heat. 2. Be able to recognize and identify energy storage mechanisms: grav, kinetic, elastic, dissipated. 3. Recognize the universal, fundamental nature of energy. 4. Use Hooke's Law to analyze elastic energy systems. 5. Recognize and identify modes of energy transfer: working, heating. 6. Use representational tools (pie charts, bar graph/schema diagrams) to analyze a system in terms of energy storage and transfer. 7. Analyze a system of energy interactions appropriately according to the system designation. 8. View friction as a mechanism for dissipating energy. 9. Determine the quantity of kinetic energy, elastic potential energy, gravitational potential energy, frictional dissipated energy during an interaction. 10. Explain working as: energy transfer to/from system via an external force ( component of force parallel to motion). Work is also the area under F-x graph 11. Define power as rate of energy usage; calculate power in watts.
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To review your understanding go to:
http://www.glenbrook.k12.il.us
You can download the book "Conservation Laws" at:
http://www.lightandmatter.com/area1book2.html
Great Roller coaster Site:
http://timesdispatch.com/nie/rollercoaster.htm