Measuring liquid density using Archimedes' principle
Hughes, Stephen W. (2006) Measuring liquid density using Archimedes' principle. Physics Education, 41(5), pp. 445-447.
A simple technique is described for measuring absolute and relative liquid density based on Archimedes principle. The technique involves placing a container of the liquid under test on an electronic balance and suspending a probe (e.g. glass marble) attached to a length of line beneath the surface of the liquid. If the volume of the probe is known, the density of liquid is given by the difference between the balance reading before and after immersion of the probe divided by the volume of the probe. A test showed that the density of room temperature water could be measured to an accuracy and precision of 0.01 +/- 0.1%. The probe technique was also used to measure the relative density of milk, Coca-Cola, fruit juice, olive oil and vinegar.
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|Item Type:||Journal Article|
|Keywords:||Archimedes, liquid density|
|Subjects:||Australian and New Zealand Standard Research Classification > EDUCATION (130000) > SPECIALIST STUDIES IN EDUCATION (130300) > Educational Technology and Computing (130306)|
Australian and New Zealand Standard Research Classification > PHYSICAL SCIENCES (020000) > OTHER PHYSICAL SCIENCES (029900) > Synchrotrons; Accelerators; Instruments and Techniques (029904)
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
Past > Schools > School of Physical & Chemical Sciences
|Copyright Owner:||Copyright 2006 Institute of Physics|
|Copyright Statement:||Reprodiced in accordance with the copyright policy of the publisher.|
|Deposited On:||03 Apr 2009 09:04|
|Last Modified:||29 Feb 2012 23:26|
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