thermal energy transfer Flashcards
(13 cards)
matter
any substance that occupies space and has mass
states of matter
solid, liquid, gas, and plasma
energy
heat, light, electrical energy, or mechanical energy
kinetic energy
the energy of an object because of motion the word kinetic stems from the Greek word for motion.
thermal energy
the total moving particles
temperature
measures the average kinetic energy of the particles of an object or substance . it is like a speedometer for how fast particles are moving.
heat
the transfer of energy
conduction
the transfer of heat through a solid material by direct contact of particles
convection
the transfer of heat in a fluid (gas/liquid) which is caused when hotter less dense fluids rise and cooler more dense fluids sink
radiation
the transfer of heat through empty space by invisible electromagnetic rays.
thermal equilibrium
it happens when heat flows from a higher temperature object to a lower temperature object until the two objects have equal temperature.
conductor
materials that allow electrical current to flow through them easily.
insulator
a substance which does not really allow the passage of heat or sound