Investigating sea level rise due to global warming in the teaching laboratory using Archimedes’ principle

Hughes, Stephen W. & Pearce, Darren John (2015) Investigating sea level rise due to global warming in the teaching laboratory using Archimedes’ principle. European Journal of Physics, 36(6), pp. 1-9.

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A teaching laboratory experiment is described that uses Archimedes’ principle to precisely investigate the effect of global warming on the oceans. A large component of sea level rise is due to the increase in the volume of water due to the decrease in water density with increasing temperature. Water close to 0 °C is placed in a beaker and a glass marble hung from an electronic balance immersed in the water. As the water warms, the weight of the marble increases as the water is less buoyant due to the decrease in density. In the experiment performed in this paper a balance with a precision of 0.1 mg was used with a marble 40.0 cm3 and mass of 99.3 g, yielding water density measurements with an average error of -0.008 ± 0.011%.

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ID Code: 87429
Item Type: Journal Article
Refereed: Yes
Keywords: thermal, expansion, ocean, warming, climate, change, density
DOI: 10.1088/0143-0807/36/6/065033
ISSN: 1361-6404
Divisions: Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2015 Institute of Physics Publishing Ltd
Deposited On: 14 Sep 2015 03:18
Last Modified: 11 Jul 2017 04:45

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