Plates and Weights



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 Code Number :   2C20.40  

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.

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.

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Condition :   Good  
Principle :   Bernoulli's Principle  
Area of Study :  Heat & Fluids   
Equipment :   Double metal plate with plastic tube, Masses (set).
Procedure :   Turn the air stream on full blast.  Insert the lower plate with the small stem into the hole of the upper plate.  When the plates get close enough together, the lower plate should be suction sealed against the top plate.  At least 300 grams of weight can be applied to the lower plate before it falls off.
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   References

Martin Gardner, "Three for Bernoulli", TPT, Vol. 34, # 2, Feb. 1996, p. 79.

 

Chris Waltham, Sarah Bendall, Andrzei Kotlicki, "Bernoulli Levitation", AJP, Vol. 71, # 2, Feb. 2003, p. 176.

 

Fj- 5:  Freier and Anderson,  A Demonstration Handbook for Physics.

 

F- 215:  "Spool and Card - Metal Disks,"  DICK and RAE Physics Demo Notebook.

 

M- 295:  Richard Manliffe Sutton, Demonstration Experiments in Physics.

 

Brown, 333 Science Tricks & Experiments.

"Bernoulli Levitator," Exploratorium Science Snackbook, p. 6.1 - 6.2.

3.03:  R. D. Edge, "Bernoulli Effect," String and Sticky Tape Experiments.



Mail Questions and Comments to:  Dale Stille