heat transfer Flashcards
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 method by witch 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 trough substances, evan empty space
insulator
a material witch energy (electrical thermalor sound ) cannot be easily transferred
conductor
a material trough witch energy (electrical thermal or sound ) can be transferred
temperature
the measure of the average speed of all particles
thermal energy
the total energy of all particles in an object
