bimetal strip is made part of a single pole single throw switch. The circuit is
connected so that a light shines when the bimetal strip is at room temperature,
but not when it has been sufficiently heated so that the bimetal strip no longer
connecting the circuit. Video clips of this experiment are available: .avi
(Windows) and .mov (Mac).
setup (no electricity).
This experiment involves fire. Know
where the classroom fire extinguishers are located before performing the experiment
and be cautious with flame. Extinguish matches in water.
setup, electrical power source, propane torch, matches
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Friday August 15, 2008 8:37 PM