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Finding the density of objects without measuring mass and volume.

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Title: Finding the density of objects without measuring mass and volume.
Authors: Frackson Mumba, Mesfin Tsige
Source: Physics Education. May2007, Vol. 42 Issue 3, p293-295. 3p.
Subject Terms: Torque, Floating bodies, Buoyant ascent (Hydrodynamics), Mechanics (Physics)
Abstract: A simple method based on the moment of forces and Archimedes' principle is described for finding density without measuring the mass and volume of an object. The method involves balancing two unknown objects of masses M1and M2on each side of a pivot on a metre rule and measuring their corresponding moment arms. The object whose density is to be found is then immersed in a liquid of known density and the new moment of the arm of this object is measured. The density of the immersed object is then determined using only its measured moment arms and the density of the liquid. [ABSTRACT FROM AUTHOR]
Copyright of Physics Education is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Education Research Complete
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  Availability: 0
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DbLabel: Education Research Complete
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AccessLevel: 6
PubType: Academic Journal
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  Data: A simple method based on the moment of forces and Archimedes' principle is described for finding density without measuring the mass and volume of an object. The method involves balancing two unknown objects of masses M1and M2on each side of a pivot on a metre rule and measuring their corresponding moment arms. The object whose density is to be found is then immersed in a liquid of known density and the new moment of the arm of this object is measured. The density of the immersed object is then determined using only its measured moment arms and the density of the liquid. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Physics Education is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1088/0031-9120/42/3/010
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      – SubjectFull: Buoyant ascent (Hydrodynamics)
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              Text: May2007
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