Columbia University Physics Lecture Demonstrations


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4A30.1 Linear Expansion of Metal

[Setup Time: 5 Min.] [Current Condition: Good]

Info

The end of a long metal bar is attached to a sensitive positional scale. Heating the bar with a bunsen burner causes the bar to expand, and the pointer on the scale rises quickly.

Parts List

Bar with Numbered Dial in D. Thermo, 1A

Bunsen Burner or Torch in D. Thermo, 1A

Relevant Simulation

Demo Example:

Other Information

Sagging Wire
Expansion of a Rod

Real-Life Examples

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More Advanced Reading

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