[PAR] [TLE] James Prescott Joule [SEP] James Prescott Joule FRS HFRSE DCL LLD ( ; (24 December 1818 11 October 1889) was an English physicist, mathematician and brewer, born in Salford, Lancashire.  Joule studied the nature of heat, and discovered its relationship to mechanical work (see energy).  This led to the law of conservation of energy, which led to the development of the first law of thermodynamics. [PAR] [TLE] Mechanical energy [SEP] In the physical sciences, mechanical energy is the sum of potential energy and kinetic energy.  It is the energy associated with the motion and position of an object.  The principle of conservation of mechanical energy states that in an isolated system that is only subject to conservative forces the mechanical energy is constant.  If an object is moved in the opposite direction of a conservative net force, the potential energy will increase and if the speed (not the velocity) of the object is changed, the kinetic energy of the object is changed as well.  In all real systems, however, nonconservative forces, like frictional forces, will be present, but often they are of negligible values and the mechanical energy's being constant can therefore be a useful approximation.  In elastic collisions, the mechanical energy is conserved but in inelastic collisions, some mechanical energy is converted into heat.  The equivalence between lost mechanical energy (dissipation) and an increase in temperature was discovered by James Prescott Joule.
[PAR] [TLE] James Prescott Joule [ SEP ] James Prescott Joule FRS HFRSE DCL LLD ( ; ( 24 December 1818 11 October 1889 ) was an English physicist , mathematician and brewer , born in Salford , Lancashire . Joule studied the nature of heat , and discovered its relationship to mechanical work ( see energy ) . This led to the law of conservation of energy , which led to the development of the first law of thermodynamics . [PAR] [TLE] Mechanical energy [ SEP ] In the physical sciences , mechanical energy is the sum of potential energy and kinetic energy . It is the energy associated with the motion and position of an object . The principle of conservation of mechanical energy states that in an isolated system that is only subject to conservative forces the mechanical energy is constant . If an object is moved in the opposite direction of a conservative net force , the potential energy will increase and if the speed ( not the velocity ) of the object is changed , the kinetic energy of the object is changed as well . In all real systems , however , nonconservative forces , like frictional forces , will be present , but often they are of negligible values and the mechanical energy 's being constant can therefore be a useful approximation . In elastic collisions , the mechanical energy is conserved but in inelastic collisions , some mechanical energy is converted into heat . The equivalence between lost mechanical energy ( dissipation ) and an increase in temperature was discovered by James Prescott Joule .
The equivalence between lost mechanical energy and increases in temperature was discovered by an English physicist, mathematician and brewer, born where?
The equivalence between lost mechanical energy and increases in temperature was discovered by an English physicist , mathematician and brewer , born where ?
Salford, Lancashire
Salford, Lancashire