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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 17:43 |
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Conference: Bucharest University Faculty of Physics 2017 Meeting
Section: Physics Education
Title:
Friction force model for heat-mechanical work equivalence checked in Puluj experiment
Authors:
Alexandra SERBAN, Sanda VOINEA, Tiberius O. CHECHE
Affiliation:
University of Bucharest, Faculty of Physics, P.O.Box MG-11, Magurele, 077125 Bucharest, Romania
E-mail
alexandra_serban1997@yahoo.com
Keywords:
friction force, mechanical work, heat, Puluj experiment
Abstract:
The aim of this paper is to show the equivalence between heat and mechanical work by using an accurate calculus of the mechanical work. The law of conservation and transformation of energy shows that for a given amount of energy of a certain type correspond equivalent quantities of other types. In particular, between the mechanical work done and the heat obtained is a constant ratio. The method used in the experiment to prove this is a direct one. It evaluates the heat produced by friction between a band of synthetic material and the surface of a metallic cylinder.
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