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Mechanical energy

 

Sum of a system's kinetic energy (KE) and potential energy (PE). Mechanical energy is constant in a system that experiences no dissipative forces such as friction or air resistance. For example, a swinging pendulum that experiences only gravitation has greatest KE and least PE at the lowest point on the path of its swing, where its speed is greatest and its height least. It has least KE and greatest PE at the extremities of its swing, where its speed is zero and its height is greatest. As it moves, energy is continuously passing back and forth between the two forms. Neglecting friction and air resistance, the pendulum's mechanical energy is constant.

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Sports Science and Medicine: mechanical energy
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Type of energy that a body has by virtue of its motion (see kinetic energy), position (see potential energy) or state of deformation.

WordNet: mechanical energy
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Note: click on a word meaning below to see its connections and related words.

The noun has one meaning:

Meaning #1: energy in a mechanical form


Wikipedia: Mechanical energy
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In physics, mechanical energy describes the sum of potential energy and kinetic energy present in the components of a mechanical system.[1]

Distinguished from other types of energy

The classification of energy into different "types" often follows the boundaries of the fields of study in the natural sciences.

Notes

  1. ^ Resnick, Robert and Halliday, David (1966), Physics, Section 8-3 (Vol I and II, Combined edition), Wiley International Edition, Library of Congress Catalog Card No. 66-11527

 
 

 

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Britannica Concise Encyclopedia. Britannica Concise Encyclopedia. © 2006 Encyclopædia Britannica, Inc. All rights reserved.  Read more
Sports Science and Medicine. The Oxford Dictionary of Sports Science & Medicine. Copyright © Michael Kent 1998, 2006, 2007. All rights reserved.  Read more
WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved.  Read more
Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Mechanical energy" Read more