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Quote from: Bored chemist on 03/07/2010 16:54:17Energy is the capacity to do work.The concept of energy is abstract and therefore not as easy to define as the concepts of mass and volume. One definition of energy, as what Bored chemist said, is the capacity to do work.There are two principal forms of energy: potential and kinetic. Potential energy is stored energy.Kinetic energy is the energy of motion.Hope this helps.
Energy is the capacity to do work.
Abstract - Discusses the definition of energy found in many high school and college level physics texts, the conflict of that definition with the second law of thermodynamics, and the relation to the concept of the conservation of energy. Suggests not using a definition of energy and provides some alternative strategies.
I would like to see the article. I'd also like to see whether or not Pmb accepts that the system he suggested earlier is a breach of the uncertainty principle.