Pendula - Arc  vs.  Ring

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 Code Number :   3A15.40  

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.

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Condition :   Good
Principle :   Periods related to rings and arcs of the same radii  
Area of Study :  Acoustics  
Equipment :   Arc and Ring pendulum set, screwdriver pivot.
Procedure :   This set is designed so that all of the pieces have the same radius.  When hung on the pivot and started into oscillatory motion all of these should have the same period.
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   References

Thomas A. Walkiewecz and David L. Wagner, "Symmetry Properties of a Ring Pendulum", TPT, Vol. 32, # 3, March 1994, p. 142.

George Matous and John Matolyak, "Teaching Important Procedures with Simple Experiments", TPT, Vol. 29, # 8, Nov. 1991, p. 541.

Julius Sumner Miller, "Another Enchanting Thought", TPT, Vol. 17, # 3, Mar. 1979, p. 152.

 

H. C. Jensen, "On the Equivalence of Truncated Ring Pendula", AJP, Vol. 35, # 10, Oct. 1967, p. 971.

 

8.5:  Robert Ehrlich, "The Partial Ring Pendulum," Why Toast Lands Jelly-Side Down, p. 126-127.

 

Robert L. Wild, "Physical Pendulum - Constant Period", Low-Cost Physics Demonstrations, # 43, p. 28.



Mail Questions and Comments to:  Dale Stille