3A10.30 - Torsion Pendulum

Code Number:
Demo Title:
Torsion Pendulum
Potential to Kinetic Energy, Simple Harmonic Motion
Area of Study:
Torsion Pendulum.

Video Credit: Jonathan M. Sullivan-Wood.

Stretch the pendulum so that the wire is very tight.  The different mass balls may be used to vary the pendulum period.

The old style torsion pendulum is originally a wall mount type apparatus.  Copper, Brass, and Steel Rods of different diameters and with a nominal length of 1 meter are used with this apparatus.  The rods are stored in the "Mechanics" section.   Note that there is a ring that can also be used with the pendulum that will effectively double the mass. 

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  • Colson, Lapp, and Elridge, Physics Laboratory Manual, University of Iowa, 1936, p. 32

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