Energy and heat transfer Flashcards
1
Q
Law of conservation of energy
A
Energy cannot be created or destroyed just transformed.
2
Q
Heat transfer
A
A method by which heat flows.
3
Q
Heat
A
Thermal energy that flows due to a difference in temperature.
4
Q
Conduction
A
Heat transfer within or between solid objects.
5
Q
Convection
A
Heat transfer into or out of fluids.
6
Q
Radiation
A
Heat transfer due to packets of energy called photons that can travel through many substances, even empty space.
7
Q
Insulator
A
A material through which energy (electrical, thermal, or sound) cannot be easily transferred.
8
Q
Conductor
A
A material through which energy (electrical, thermal, or sound) can be transferred.
9
Q
Temperature
A
The measure of the average speed of all particles.
10
Q
Thermal energy
A
The total energy of all particles in an object.
