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abstraction > hypothesis > theory > law > conservation law > conservation of mass and energy |
conservation of mass and energy comparison table |
Subject | is a kind of | has conserved quantity | has definition |
---|---|---|---|
conservation law | law | A quantity that remains unchanged in the course of the evolution of a dynamical system. There are seven known quantities that are conserved: energy (including mass), momentum, angular momentum (including spin), charge, electron-family number, muon-family number, and baryon-family number. | |
conservation of mass and energy | conservation law | mass and energy | Important physical principle and one of the basic laws of physics stating that matter is neither created nor destroyed (although mass may become energy, the energy quantitatively represents the mass). One exception to this principle is a singularity; another follows from the theory of virtual particles. |
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