Demonstrations

Buoyancy Demo - Archimedes' Principle

Code Number :	2B40.20
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 :	Excellent
Principle :	Archimedes's Principle
Area of Study :	Heat & Fluids
Equipment :	Spring scale (40 N), Bucket (galvanized, small), Rock (large), Pail with spout (4 gal. cap.), Beakers (1000 ml) (several).
Procedure :	Make sure to pull the plug and equalize the water level in the bucket several minutes before you drop the rock in so that you know that the water you collect is equal to the volume of the rock. When the rock is dropped in the scale will decrease about 10 Newton's. Pour the water back into the small bucket and the scale will go back to the starting weight.

References

Concetto Gianino, "Microcomputer-Based Laboratory for Archimedes' Principle and Density of Liquids", TPT, Vol. 46, # 1, Jan. 2008, p. 52.

M.J. Clouter, "Archimedes' Principle: A Classroom Demonstration with a Twist", TPT, Vol. 44, # 1, Jan. 2006, p. 46.

Irina Struganova, "A Spring, Hooke's Law, and Archimedes' Principle," TPT, Vol. 43, # 8, Nov. 2005, p. 516.

Thomas J. Ritter Jr., "The Baker Street Irregulars Meet Archimedes", TPT, Vol. 43, # 4, Apr. 2005, p. 226 - 227.

James J. Carr, "Demonstrating Newton's Third Law", TPT, Vol. 42, # 3, Mar. 2004, p. 132.

Erlend H. Graf, "Just What Did Archimedes Say About Buoyancy?", TPT, Vol. 42, # 5, ,May 2004, p. 296.

Jeffrey Bierman and Eric Kincanon, "Archimedes' Principle and the FCI" TPT Vol. 41, # 5, Dec. 2003, p. 510.

Jeffrey Bierman and Eric Kincanon, "Reconsidering Archimedes' Principle," TPT, Vol. 41, # 6, Sept. 2003, p. 340.

"Figuring Physics", TPT, Vol. 41, # 7, Oct. 2003, p. 432.

Hasan Fakhruddin, "An Archimede's Principle Activity", TPT, Vol. 40, # 6, Sept. 2002, p. 376.

Ellis D. Noll, "Confirming the Buoyant Force", TPT, Vol. 40, # 1, Jan. 2002, p. 8.

Dean S. Edmonds, Jr., "Comments on the Buoyant Force", TPT, Vol. 40, # 4, Apr. 2002, p. 196.

"Figuring Physics", TPT, Vol. 39, # 4, Apr. 2001, p. 223.

Boon Leong Lan, "Don't Run Naked and Shout Eureka! Yet," TPT, Vol. 38, # 2, p. 125, (Feb. 2000).

Thomas Bruce Daniel, "Archimedes' Principle Without the King's Crown", TPT, Vol. 36 # 9, Dec. 1998, p. 557.

Mark P. Silverman, "Flying High, Thinking Low? What Every Aeronaut Needs To Know", TPT, Vol. 36, # 5, May 1998, p. 288.

Paul L. Willems, "Specific Gravity with Electronic Balances," TPT, Vol. 36, # 1, p. 10, (Jan. 1998).

"Figuring Physics", TPT, Vol. 35, # 5, May 1997, p. 291.

W.C. Deese and R.E. Hamburg, "Demonstrating the Bowling-Ball-in -the-Boat Puzzle", TPT, Vol. 34, # 3, Mar. 1996, p. 187.

"Figuring Physics", TPT, Vol. 34, # 3, Mar. 1996, p. 169.

Marc Rosner, "Practical Hydrodynamics", TPT, Vol. 34, # 6, Sept. 1996, p. 326.

"Figuring Physics", TPT, Vol. 34, # 2, Feb. 1996, p. 108.

Iain MacInnes and Rory McPherson, "The Hydrostatic Balance Revisited," TPT, Vol. 34, # 8, p. 500, (Nov. 1996).

Iain MacInnes and Rory McPherson, "An Illustration of Newton's Third Law," TPT, Vol. 34, # 7, p. 400, (Oct. 1996).

John D. McGervey, "Hands-on Physics For Less Than A Dollar Per Hand-Part II," TPT, Vol. 34, # 7, p. 448- 449, (Oct. 1996).

Joseph Miano, "Archimedes' Principle and Smiley-Faced Balloons," TPT, Vol. 33, # 3, p. 172-173, (March 1995).

Van E. Neie, "Beware of Greeks Bearing Pan Balances", TPT, Vol. 33, # 1, p. 6, Jan. 1995.

David A. Ward, "Ward's Response", TPT, Vol. 33, # 1, p. 6, Jan. 1995.

Eric Kincanon, "Explanation of a Buoyancy Demonstration", TPT, Vol. 33, # 1, Jan. 1995, p. 31.

David A. Ward, "Finding the Buoyant Force", TPT, Vol. 32, # 2, Feb. 1994, p. 114.

Ronald Ebert, "Does the Buoyant Force Depend on the Weight or Density?", TPT, Vol. 32, # 5, May 1994, p. 262.

C. Guerra-Vela and D. J. Bord, "Composite Samples for an Archimedes' Principle Experiment," TPT, Vol. 26, # 2, p. 95, (February 1988).

Robert P. Bauman, "Archimedes' Bath", TPT, Vol. 25, # 3, Mar. 1987, p. 162.

D. Easton, "Archimedes Revisited", TPT, Vol. 23, # 5, May 1985, p. 294.

Ronald A. Hultsch, "Eureka! I'm 28% Fat", TPT, Vol. 19, # 6, Sept. 1981, p. 408.

Gordon E. Jones, W. Paul Gordon, "Removing the Buoyant Force", TPT, Vol.17, # 1, Jan. 1979, p. 59.

John R. Ray, Eric Johnson, "Removing the Buoyant Force, a Follow-Up", TPT, Vol.17, # 6, Sept. 1979, p. 392.

R. E. Benenson, "Direct-Reading Archimedes' Principle Apparatus", TPT, Vol. 13, # 6, Sept. 1975, p. 366.

Lillian Hartman Hoddeson, "How Did Archimedes Solve King Hiero's Crown Problem? - An Unanswered Question", TPT, Vol. 10, # 1, Jan. 1972, p. 14.

Harley J. Haden, "A Demonstration of Newtonian and Archimedean Forces", TPT, Vol. 2, # 4, April 1964, p. 176.

V. M. Rudiak, "A Proof of Archimedes' Principle", TPT, Vol. 2, # 6, Sept. 1964, p. 293.

Fg-1: Freier and Anderson, A Demonstration Handbook for Physics.

F-105: "Archimedes' Cup and Can," DICK and RAE Physics Demo Notebook.

M- 283, 284: Richard Manliffe Sutton, Demonstration Experiments in Physics.

Tik Liem, "How Can We Determine the Rock's Volume?" Investigation to Science Inquiry, p. 403.

Robert Ehrlich, "Lowering a Weight Into a Liquid," Turning the World Inside Out, p. 104-105.

Robert Ehrlich, "H.8, Hanging a Weight from a Helium-Filled Balloon", Turning the World Inside Out, p. 103.

B.Camerin Reed, "Archimedes' Law Sets A Good Energy-Minimization Example", Physics Education, Vol. 39, (4), July 2004, p. 322.

Mail Questions and Comments to: Dale Stille