1. Heat
Ch 6

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

3. Heat
Transfer of energy between objects that are at different temperatures
From the higher temperature object to the lower temperature object

4. Thermal Equilibrium

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

6. 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.
                                                                                 

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

8. Thermal Conductivity
Rate at which a substance transfers thermal energy

9. Specific Heat Capacity
amount of heat needed to raise the temperature of 1 kg of a material by 1 degree Celsius or Kelvin
can be thought of as how well a substance resists changing its temperature
Water = 4,184 J/(kg K)
Iron = 450 J/(kg K)