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LECTURE 9
     goals and outline

lecture title

    Conservation of Energy

lecture goals

  • Learn some of the many kinds of energy.
  • Learn another important conservation law, Conservation of Energy.
  • Learn a bit more specifically what kinetic energy, potential energy, and work are and how they can be converted from one to the other.
  • Understand what power means (technically), the rate of producing or using energy.
  • Watch the professor show off!

outline of lecture

    1. Many Kinds of Energy

    2. Conservation of Energy

    3. Using Energy

    4. Power

quotes

We know many laws of nature and we hope and expect to discover more. Nobody can foresee the next such law that will be discovered. Nevertheless, there is a structure in the laws of nature which we call the laws of invariance. This structure is so far-reaching in some cases that laws of nature were guessed on the basis of the postulate that they fit into the invariance structure.

-- Eugene P. Wigner

A good many times I have been present at gatherings of people ... who have ... been expressing their incredulity at the illiteracy of scientists. Once or twice I have been provoked and asked [if they] could describe the Second Law of Thermodynamics. The response was cold ... also negative. Yet I was asking something which is the scientific equivalent of: Have you read a work of Shakespeare's?

-- C. P. Snow (from The Two Cultures)


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Please email any questions, comments, or suggestions to Professor Bernice Durand, bdurand@theory3.physics.wisc.edu.

Revised September 22, 1997.


Content © 1997, Bernice Durand
Images and layout © 1997, Shane Hamilton