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Heat Transfer
Term | Definition |
---|---|
thermal energy | sum of the kinetic energy of ALL of the particles in a substance |
kinetic energy | the energy of motion |
heat | the total amount of kinetic energy in a substance |
solid, liquid, gas | states of matter, movement between governed by gaining or losing thermal energy |
temperature | a measure of the average kinetic energy of the molecules in a substance |
contract | decreasing the size of an object by losing thermal energy |
conduction | heat transfer by molecules or objects touching |
expand | increasing the size by heating an object |
insulator | a substance that does NOT transfer energy easily |
convection | heat transfer in a gas or fluid, usually in currents |
radiation | heat transfer through space or electromagnetic waves |
conductor | a substance that transfers energy easily |