Energy and heat transfer Flashcards
Law of conservation energy
Energy cannot be created or destroyed just transferred (under normal conditions).
Heat Thermal
energy that flows due to a difference in temperature. Heat flows from hot to cold.
Heat Transfer
A method 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 transfer due to packets of energy called photons that can travel through many substances , even empty space.
Insulator
A material through which energy (electric thermal or sound) cannot be easily transferred.
Conductor
A material through which (electric thermal or sound) can be easily transferred.
Temperature
The measure of average speed of all particles.
Thermal energy
The total energy of all particles in an object.