Use of an Arduino to study buoyancy force

The study of buoyancy becomes very interesting when we measure the apparent weight of the body and the liquid vessel weight. In this paper, we propose an experimental apparatus that measures both the forces mentioned before as a function of the depth that a cylinder is sunk into the water. It is don...

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Bibliographic Details
Published in:Physics education 2018-05, Vol.53 (3), p.35010
Main Authors: Espindola, P R, Cena, C R, Alves, D C B, Bozano, D F, Goncalves, A M B
Format: Article
Language:English
Subjects:
Buoyancy
Kinetics
Laboratory Experiments
Mechanics (Physics)
Physics
Science Equipment
Science Experiments
Scientific Concepts
Scientific Principles
Teaching Methods
Weight
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Summary:The study of buoyancy becomes very interesting when we measure the apparent weight of the body and the liquid vessel weight. In this paper, we propose an experimental apparatus that measures both the forces mentioned before as a function of the depth that a cylinder is sunk into the water. It is done using two load cells connected to an Arduino. With this experiment, the student can verify Archimedes' principle, Newton's third law, and calculate the density of a liquid. This apparatus can be used in fluid physics laboratories as a substitute for very expensive sensor kits or even to improve too simple approaches, usually employed, but still at low cost.
ISSN:0031-9120
1361-6552
DOI:10.1088/1361-6552/aaa93a