Chapter Three
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Conduction (in the sense of electricity)
When electric charge moves in an electrically conductive substance, such as metal.
Conduction (in the sense of heat transfer)
The process of heat transfer by the propagation of vibrations of atoms in a solid.
Convection
The process of heat transfer by molecular motion in fluids. As fast molecules mingle with slower molecules, they collide and energy is transferred from the faster molecules to the slower molecules.
Heat
Energy in transit from a warm body to a cooler one, by means of infrared radiation, thermal conduction, or convection.
Internal energy
The sum of all the kinetic energies possessed by all the particles in a substance.
Radiation
Electromagnetic waves (specifically the infrared region of the electromagnetic spectrum refers to heat transfer.)
Thermal equilibrium
When the temperature of two objects are the same, and therefore no heat is being transferred.
Work
A mechanical process whereby energy is being transferred from one object to another by a force pushing through a certain distance.