1. Heat and Heat Transfer
Heat

2. Announcements
Vocab quiz tomorrow!
Heat exam on Friday!

3. Scales of Measurement
Celsius scale – based on where water freezes (0C) and where water boils (100C)
Kelvin scale – based on the movement of particles

4. Absolute Zero At 0 K, all particle movement has ceased
It is impossible to have a temperature lower than 0 K
0 K = -273C

5. Kinetic-Molecular Theory
The faster particles move, the greater the kinetic energy or thermal energy.

6. Temperature –average kinetic energy of the particles in a substance
Definitions
Temperature –average kinetic energy of the particles in a substance
Thermometers measure temperature
Heat – amount of energy transferred

7. Thermal equilibrium
Energy will always travel from an area of higher energy to an area of lower energy.

8. Conduction: energy transfer between solids.
Heat transfer
Conduction: energy transfer between solids.
Convection: mass motion of a fluid (liquid or gas)
Radiation: emission of EM waves, no medium needed

9. Specific Heat
Amount of energy that must be added to the material to raise the temperature of a unit mass one temperature unit.
The units of specific heat are J/kg·K or J/kg·°C

10. Law of Conservation of Energy
Energy lost by one object must be equal to the amount gained by another object.