This paper critically explores the familiar concept of potential energy (PE), with the intent of addressing the issue of whether it is “real” or not. We begin with an historical account of the development of the idea of energy, examining the original motivations for the introduction of the notion of PE. This is followed by a sample of the arguments existing in the literature (from the 1880s through the 20th century) against the legitimacy of PE; that is, arguments maintaining that potential energy is not a real observable physical quantity. Today potential energy is so widely and unquestioningly accepted that it seems almost unthinkable that anyone ever seriously challenged its veracity. Using relativistic considerations it will be shown that PE is as real as mass is real. Nonetheless it will be argued that the concept of potential energy, however real, is actually superfluous.
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November 2003
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November 01 2003
An Historico-Critical Account of Potential Energy: Is PE Really Real?
Eugene Hecht
Eugene Hecht
Adelphi University, Garden City, NY
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Phys. Teach. 41, 486–493 (2003)
Citation
Eugene Hecht; An Historico-Critical Account of Potential Energy: Is PE Really Real?. Phys. Teach. 1 November 2003; 41 (8): 486–493. https://doi.org/10.1119/1.1625210
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