015 Phys211 S09 Potential Energy

015 Phys211 S09 Potential Energy - 1 Potential Energy...

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2/22/2010 1 Potential Energy Phys211 Spring 2010 2/23/10 Essential University Physics, J. Wolfson 1 2/23/10 Power (individual or total force) Power is the rate at which a force does work on an object. If power is constant, or if you want an average value, you may use: dW P dt avg W P t Essential University Physics, J. Wolfson 2/23/10 Question 1 Work is done over a distance, and over a time. Power is instantaneous. Work is a _______. Power is a _______. A) Scalar B) Vector C) Neither Essential University Physics, J. Wolfson
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2/22/2010 2 Potential Energy Work done by a conservative force can be related to a potential energy . U=energy stored in the force 2/23/10 Essential University Physics, J. Wolfson B BA A U U F dr Question 2 Positive Work done by a conservative force always corresponds to a ______ of the corresponding potential energy. A. gain B. loss C. either is possible 2/23/10 Essential University Physics, J. Wolfson
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This note was uploaded on 10/31/2010 for the course PHYS 211 taught by Professor Melendorf during the Spring '10 term at Illinois Central.

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015 Phys211 S09 Potential Energy - 1 Potential Energy...

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