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ERIC Number: EJ1004670
Record Type: Journal
Publication Date: 2013-Feb
Pages: 3
Abstractor: As Provided
Reference Count: 1
ISBN: N/A
ISSN: ISSN-0031-921X
Accurate Determination of the Volume of an Irregular Helium Balloon
Blumenthal, Jack; Bradvica, Rafaela; Karl, Katherine
Physics Teacher, v51 n2 p93-95 Feb 2013
In a recent paper, Zable described an experiment with a near-spherical balloon filled with impure helium. Measuring the temperature and the pressure inside and outside the balloon, the lift of the balloon, and the mass of the balloon materials, he described how to use the ideal gas laws and Archimedes' principal to compute the average molecular mass and density of the impure helium. This experiment required that the volume of the near-spherical balloon be determined by some approach, such as measuring the girth. The accuracy of the experiment was largely determined by the balloon volume, which had a reported uncertainty of about 4%. (Contains 1 figure.)
American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail: pubs@aapt.org; Web site: http://scitation.aip.org/tpt
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A