1Q10.75 - Parallel Axis Wheels

Code Number:
Demo Title:
Parallel Axis Wheels
Parallel Axis Theorem
Area of Study:
Pasco Rotational System and Hanging Weights.

Place the large wheel at the desired radius on the rotational support arm. Note that the wheel can be mounted so that it does not turn as the support arm is rotating, or by turning it upside down it can be spun on its own axis as the support arm is rotated. Leveling of the apparatus will be required. When the hanging masses are allowed to fall the rotational inertia can be calculated.

  • Derek Christie, "Tennis Rackets and the Parallel Axis Theorem", TPT, Vol. 52, # 4, April 2014, p. 208.
  • Benjamin Oostra, "Moment of Inertia Without Integrals", TPT, Vol. 44, # 5, May 2006, p. 283.
  • Bruce Denardo, "Demonstration of the Parallel-Axis Theorem", TPT, Vol. 36, #1, Jan. 1998, p. 56.
  • Fred Otto, "Unlocking the Confusion World of Rotation", TPT, Vol. 26, # 6, Sept. 1988, p. 382.
  • Eric R. Dietz,  "One Good Turn: Emphasizing the Importance of the Origin for the Discussion of Angular Momentum",  TPT, Vol. 24, # 4, p. 226, April 1986.
  • J. N. Boyd and P. N. Raychowdhury, "Parallel Axis Theorem", TPT, Vol. 23, # 8, Nov. 1985, p. 486.
  • Allen L. King, "Simple Viscosimetric Experiment", AJP, Vol. 33, # 10, Oct. 1965, p. 848.
  • M- 768,  "Electric Motor on Turntable",  DICK and RAE Physics Demo Notebook.

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