Buoyancy Demo - Baroscope

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MPEG Movie (13.8 MB w/Sound)

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 Code Number :   2B40.40  

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.

The University of Iowa Disclaimers:  University of Iowa Disclaimer All Rights Reserved..
Condition :   Excellent   
Principle :   Pressure & Buoyancy vs. Surface Area 
Area of Study :  Heat & Fluids  
Equipment :   Bell jar with stand, Vacuum pump, Balance with solid & hollow spheres - (Baroscope).

 
Procedure :   Vacuum grease should be applied to the bell jar for a good seal. Be sure that the apparatus inside the bell jar does not obstruct the air hole in the vacuum stand. 
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   References

Thomas B. Greenslade, Jr., "The Buoyancy Balance", TPT, Vol. 31, # 3, Mar. 1993, p. 160.

"Figuring Physics", TPT, Vol. 28, # 4, Apr. 1990, p. 248.

Zhu E-Qing,  "A Demonstration to Show the Upthrust Exerted by Air,"   TPT, Vol. 26, # 6, p. 401, (September 1988).  

 

Fg- 3:  Freier and Anderson,  A Demonstration Handbook for Physics.

 

"95, Iron vs. Plastic,"  Christopher P. Jargodzki  and Franklin Potter,  Mad About Physics, p. 33, 180.

Brown, Science for You-112 Illustrated Experiments.

Janice VanCleave, "Heavy Air," Physics for Every Kid, p. 90- 91.

Janice VanCleave, "Tilt," 200 Gooey, Slippery, Slimy, Weird, & Fun Experiments, p. 93.

Janice VanCleave, "Tip," 201 Awesome, Magical, Bizzare, & Incredible Experiments, p. 77.

Richard Berg, "A Pop Bottle Buoyancy of Air Demonstration," PIRA Newsletter, Feb. 1994.



Mail Questions and Comments to:  Dale Stille