1. Energy

2. Types of Energy Kinetic – energy of motion Potential – stored energy
Thermal – form of energy associated with heat
Nuclear - energy stored in the nucleus of an atom and released through fission, fusion, or radioactivity
Radiant – energy associated with light

3. Characteristics of Energy
Energy is strictly an abstract concept, but it can be measured.
Energy may be stored or transported by material objects or by fields.
Energy may be transformed from one type to another.
Energy is conserved (First law of Thermodynamics)

4. Thermal Energy Not the same as heat! Joule’s paddlewheel experiment
Work - kinetic, potential, and heat??
A new type of energy!
Temperature
Temperature scales and absolute zero
The transfer of thermal energy – HEAT!
Conduction
Convection
Radiation

5. Entropy The tendency toward disorder or chaos.
The 2nd Law of Thermodynamics: Entropy always increases! (Like Humpty Dumpty)
The Heat Death of the Universe

6. Nuclear Energy
energy stored in the nucleus of an atom and released through fission, fusion, or radioactivity
1 gram of wood converted in 1 second would release 9 x 1013 W of power! Between and tons of TNT! A bomb!
The sun loses ~ 4 x 106 tons every second to continue “burning.”