• pendulum with wireless camera above

     

Code Number:1D50.25

Demo Title: Conical Pendulum

Condition: Good

Principle: Conservation of Angular Momentum

Area of Study: Mechanics

Equipment: 

Short pendulum, wireless video camera

Procedure: 

Set the pendulum up with the wireless camera about 1 foot above the pendulum pivot.  Start the pendulum in circular motion and observe the cone scribed out by the pendulum string.

References:

  • Leonid Minkin, Daniel Sikes, "Demonstrating Conical Pendulum Stable and Unstable States", TPT, Vol. 59, #6, Sept. 2021, p. 474.
  • John J. Lynch, "The Conical Pendulum Driven with a LEGO® Stepper Motor", TPT, Vol. 56, #6, Sept. 2018, p. 398.
  • William A. (Toby) Dittrich, "Drop Tower Physics", TPT, Vol. 52, #7, Oct. 2014, p. 415.
  • Thomas Moses and Natalie L. Adolphi, "A New Twist for the Conical Pendulum", TPT, Vol. 36, #6, Sept. 1998, p. 372.
  • G. Freier, "The Conical Pendulum", TPT, Vol. 2, #5, May 1964, p. 238.
  • "The Conical Pendulum", TPT, Vol. 1, #5, Nov. 1963, p. 238.
  • R. Mathevet, P. Marchou, C.M. Fabre, N. Lamrani, N. Combe, "Coriolis Acceleration and Critical Slowing-Down: A Quantitative Laboratory Experiment", AJP, Vol. 92, #2, Feb. 2024, p. 100.
  • A. Dupré and P. Janssen, "An Accurate Determination of the Acceleration of Gravity "g" in the Undergraduate Laboratory", AJP, Vol. 68, #8, Aug. 2000, p. 704.
  • Henry Klostergaard, "Determination of Gravitational Acceleration g Using a Uniform Circular Motion", AJP, Vol. 44, #1, Jan. 1976, p. 68.
  • J. A. Schaefer and C. T. Walker, "Letter re: 'Conical Pendulum Experiment'", AJP, Vol. 37, #9, Sep. 1969, p. 943.
  • Ivan Proctor and T. H. Edwards, "Conical Pendulum Experiment", AJP, Vol. 36, #6, June 1968, p. 555.
  • H. Brinkman, S. Otter, and Guenter Schwarz, "Electrically Stimulated Conical Pendulum Showing the Particle Acceleration in an Isochronous Cyclotron", AJP, Vol. 35, #11, Nov. 1967, p. ix.
  • Wallace A. Hilton, "Another Version of the Conical Pendulum", AJP, Vol. 31, #1, Jan. 1963, p. 58.
  • "M-784: Pendulum and Bottle", DICK and RAE Physics Demo Notebook.
  • Richard Manliffe Sutton, "M-138,160", Demonstration Experiments in Physics.
  • Robert Ehrlich, "Conical Pendulum", Turning the World Inside Out, p. 74 - 75.
  • Julius Sumner Miller, Q105 & A105, Millergrams I – Some Enchanting Questions for Enquiring Minds, p. 67 & 115.