Internal Energy

080 - Internal Energy
In this video Paul Andersen explains how the internal energy of a system can change as the internal structure of the system changes. An object model will not be able to account for the restoring forces and so a system model must be used. In Physics 1 a mass-spring oscillator and simple pendulum are described. In Physics 2 a charge in an electric field is described.
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Music Attribution
Title: String Theory
Artist: Herman Jolly
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All of the images are licensed under creative commons and public domain licensing:
Alexandrov, Oleg. Illustration of a en:Simple Harmonic Oscillator, June 2, 2007. self-made with en:Matlab. Converted to gif animation with the en:ImageMagick convert tool (see the specific command later in the code). commons.wikimed....
“Masses & Springs.” PhET. Accessed July 15, 2014. phet.colorado.e....
“Pendulum Lab.” PhET. Accessed July 15, 2014. phet.colorado.e....
Stündle. Deutsch: Animation Einer Pendelschwingung, June 17, 2011. Own work. commons.wikimed....

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