Demonstrations

Coupled Pendulum

Code Number :	3A70.20
Disclaimer:	Reprinted by permission of Dick Berg, University of Maryland, for use on this website. The demonstrations contained and referenced herein are listed for the purposes of cataloging and describing physics demonstrations which should be conducted only under the direction of a trained instructional support professional or physicist. These demonstrations are not presented for the purpose of being conducted by persons unconnected to this Facility and/or persons not consulting with or being supervised by the recognized instructional support professional or physicist and his/her staff. The University is responsible only for those demonstrations carried out using its own equipment using established safety and scheduling policies, and bears no responsibility for those choosing to use this source material for their own purposes. All demonstrations described and contained herein are public domain, and can also be found in reference materials in libraries, bookstores, and electronic sources. Further information regarding legal liability in use of demonstrations and labs will be found on the web site Injuries in School/College Laboratories in USA. The University of Iowa Disclaimers: University of Iowa Disclaimer All Rights Reserved..
Condition :	Good
Principle :	Modes of a Pendulum
Area of Study :	Acoustics
Equipment :	Magnetic pendulum apparatus.
Procedure :	Start one of the magnetic pendulum swinging. The magnetic coupling will transfer energy from one pendulum to the other pendulum and back again.

References

Boye M. Odom, "Logger Pro vs. MacMotion", TPT, Vol. 44, # 4, Apr. 2006, p. 199.

Don Easton, "Simplifying the Motion of Coupled Oscillators Using the FFT", TPT, Vol. 44, # 1, January 2006, p. 24.

David Kagan and Chris Gaffney, "Colliding Magnetic Pendula: When Is a Collision Not Collision-like?" TPT, Vol. 40, # 5, p. 280, (May 2002).

Charles A. Sawicki, "Inexpensive Coupled-Oscillations Demonstration," TPT, Vol. 39, # 3, p. 172, (March 2001).

Richard B. Minnix and D. Rae Carpenter, Jr., "Apparatus for Teaching Physics", TPT, Vol. 22, # 4, Apr. 1984, p. 258 - 259.

Thomas B. Greenslade, Jr., "Demonstration of Coupled Oscillations Using Permanent Magnets," TPT, Vol. 39, # 8, p. 511 (Nov. 2001). (reprinted from TPT, Vol. 18, # 1, Jan 1980, p. 39.)

J. Pierrus and M. M. Michaelis, "Demonstration of Coupled Oscillations Using Permanent Magnets", TPT, Vol. 18, # 1, Jan 1980, p. 39.

Arthur R. Quinton, "The Variation of Resistance with Temperature", TPT, Vol. 18, # 3, March 1980, p. 213.

Monte M. Giles, "A Resonance Demonstration", TPT, Vol. 12, # 3, March 1974, p. 178.

P.J. Ouseph and John P. Ouseph, "Electromagnetically Driven Resonance Apparatus," AJP, 55, (12), Dec. 1987.

Mx - 10, 12: Freier and Anderson, A Demonstration Handbook for Physics.

M-960: "Coupling-Pendula & Compasses," DICK and RAE Physics Demo Notebook.

S-17: Richard Manliffe Sutton, Demonstration Experiments in Physics.

Tik Liem, "The Twin Pendulum," Investigation to Science Inquiry, p. 195.

Jearl Walker, "Strange Things Happen When Two Pendulums Interact Through a Variety of Interconnections", The Amateur Scientist, October, 1985.

"193. Two Compasses," Christopher P. Jargodzki and Franklin Potter, Mad About Physics, p. 73, 213.

"Coupled Resonant Pendulums," The Exploratorium Science Snackbook.

Joseph Priest and James Poth, "Teaching Physics with Coupled Pendulums."

Robert Ehrlich, "G.6, Coupled Pendulums", Turning the World Inside Out, p. 94.

Mail Questions and Comments to: Dale Stille