HEAT

Heat may be defined as '''energy in transit''' from a high temperature object to a lower temperature object. An object does not possess "heat"; the appropriate term for the microscopic energy in an object is internal energy. The internal energy may be increased by transferring energy to the object from a higher temperature (hotter) object - this is called heating. [image:http://www.ces.fau.edu/nasa/images/Energy/HeatTransfer.jpg]