1. Heat
= Transfer of energy between objects that are at different temperatures
Goes from the
HIGHER temp. object
to the
LOWER temp. object

2. substance’s VOLUME increases when TEMPERATURE increases
Thermal expansion
substance’s VOLUME increases when TEMPERATURE increases

3. Thermal Equilibrium
thermal energy is transferred from one object to the other until they reach the SAME temperature

4. Conduction transfer of thermal energy by direct contact
Kinetic energy is transferred as particles collide
Solids, particularly metals, are good heat conductors

5. Convection
the transfer of energy by the motion of heated particles in a liquid or gas
Convection currents transfer heat from warmer to cooler parts of a fluid.
                                                                                 

6. Radiation energy transfer by electromagnetic waves
Some radiation is absorbed and some is reflected when it strikes a material