The Apparatus
Visible light no current
Infra-red no current
Visible light with 30 amps
Infra-red with 30 amps
Published: Thursday 09 March 2006 - Updated: Wednesday 18 April 2007
To illustrate an example of the exchange of potential and kinetic energy.
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A pendulum is set swinging and the maximum height reached is noted. A stop is then introduced which essentially reduces the length of the pendulum. The bob still returns to the height of the original motion.