1. Heat Transfer Vocabulary

2. Heat
Kinetic energy in a substance.

3. Thermal Equilibrium
Molecules move from warm to cold until they reach a balanced temperature.

4. Conduction
The transfer of heat by direct contact between solids.

5. Convection
Transfer of heat in liquids & gases.

6. Radiation
Transfer of heat in empty space without any particles.

7. Thermal Energy The total potential and kinetic energy of particles
in an object.

8. Insulator
An object that reduces the transfer of heat.

9. Conductor
An object that easily allows the transfer of energy.

10. Contraction
As molecules are cooled they move closer together and cause objects to shrink (contract)
Cooling = Smaller

11. expansion
as molecules are heated they spread out as they move around quickly and cause objects to become larger (expand)
Heating = Bigger