Heat transfer Flashcards
The law of conservation of energy
Energy cannot be created or destroyed just transformed (under normal conditions.)
Heat
Thermal energy that flows due to a difference in temperature. Heat flows from hot to cold.
Heat transfer
A melted by which heat flows (conduction, convection, radiation)
Conduction
Heat transfer within or between solid objects.
Convection
Heat transfer into or out of fluids
Radiation
Heat transfers due to packets of energy called photons that can travel through many substances, even empty space
Insulator
A material through which energy ( electrical, thermal, or sound) cannot be easily transferred.
Conductor
A material through which energy ( electrical, thermal, or sound) can be easily transferred.
Temperature
The measure of the average speed of all particles.
Thermal energy
The total energy of all particles in an object.
