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6B 10.10 - Light Output as a Function of Input Power

Demonstrates: The light output is dependent on voltage but not on amperage.
Description: An auto light bulb is hooked to a variable power source, to a volt and ammeter.

6B 10.20 - Inverse Square Law with Light

Demonstrates: Inverse square law.
Description: A light meter and a 25 W bulb are used to illustrate the inverse square law.
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6B 10.30 - Point and Diffused Light Sources

Demonstrates: Umbra and Penumbra shadows.
Description: Use 100 W frosted bulb for diffuse source and a point source. Use 6" diameter aluminum grounding ball from Van de Graaff for object. Project shadows on wall or screen.

6B 40.30 - Black Body Radiation

Demonstrates: Infrared radiation from heat.
Description: A metal ring is heated and observed with a CCD camera. The ring will appear bright on the screen before a red glow can be seen by the naked eye.