Demonstrations

Three Hole Can Experiment - Velocity of Efflux

Code Number :	2C10.10
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 :	Excellent
Principle :	Pressure vs. Water Head Height
Area of Study :	Heat and Fluids
Equipment :	Plexiglas Column with Holes, Catch Basin, Mounting platform and Ring, Large Beakers with water.
Procedure :	Mount the Plexiglas column on the platform at a height so that the water will shoot into the catch basin. Fill the column with water and observe the Pressure vs. Water Head Height relationships as demonstrated by the water streams.

References

Stephen J. Fairman, Joseph A. Johnson, and Thomas A. Walkiewicz, "Fluid Flow with Logger Pro," TPT, Vol. 41, # 6, Sept. 2003, p. 345.

Lawrence Ruby, "If You Understand Leaky Buckets, You Understand A Lot of Physics", TPT, Vol. 29, # 1, Jan. 1991, p. 44.

Richard E. Berg, "More Leaky Buckets", TPT, Vol. 29, # 5, May 1991, p. 266.

Earl Zwicker, "Doing Physics," TPT, Vol. 25, # 1, p. 59. January 1987.

R. D. Edge, "Light Pipes, Hydrostatics, Surface Tension and a Milk Carton," TPT, Vol. 22, # 1, p. 42, January 1984.

E. J. Ansaldo, "On Bernoulli, Torricelli, and the Syphon", TPT, Vol. 20, # 4, Apr. 1982, p. 243 - 244.

Lance Breger, "A Simplified Derivation of Bernoulli's Equation of Hydrodynamics", TPT, Vol. 20, # 4, Apr. 1982, p. 248.

Roy H. Biser, "The Water Can Explored Again", TPT, Vol. 4, # 7, Oct. 1966, p. 304.

Lester G. Paldy, "The Water Can Paradox," TPT, Vol. 1, # 3, p. 126, Sept. 1963.

Martin Eduardo Saleta, Dina Tobia, Salvador Gil, "Experimental Study of Bernoulli's Equation with Losses", AJP, Vol. 73, # 7, July 2005, p. 598.

Fk- 2: Freier and Anderson, A Demonstration Handbook for Physics.

F- 045: "Torricelli's Column," DICK and RAE Physics Demo Notebook.

Tik Liem, 13.26, "The Squirting Water Holes," Investigation to Science Inquiry.

Robert Ehrlich, "Three Holes in a Water-Filled Bottle," Turning the World Inside Out, p. 98 - 99.

"Tie a Knot in Water," The Usborne Book of Science Experiments.

"90, Three-Hole Can," Christopher P. Jargodzki and Franklin Potter, Mad About Physics, p. 31,178.

Mail Questions and Comments to: Dale Stille