See Also: energy, conservation of(encyclopedia)
conservation of energy(medicine)
conservation of energy resources(medicine)
conservation(encyclopedia)
conservation(dictionary)
Conservation(medicine)
CH CONSERVATION(finance)
conservation(dictionary)
conservation law(encyclopedia)
art conservation and restoration(encyclopedia)

energy, conservation of (sh)




Principle of physics according to which the energy of interacting bodies or particles in a closed system remains constant, though it may take different forms (e.g., kinetic energy, potential energy, thermal energy, energy in an electric current, or energy stored in an electric field, in a magnetic field, or in chemical bonds [see bonding]).

With the advent of relativity physics in 1905, mass was recognized as equivalent to energy. When accounting for a system of high-speed particles whose mass increases as a consequence of their speed, the laws of conservation of energy and conservation of mass become one conservation law. See also Hermann von Helmholtz.