Kinetic and Potential Energy have many forms
1. Mechanical Energy - Energy associated with motion or position
Examples: most moving objects have mechanical energy
2. Thermal Energy (Heat) - Total energy of the particles in an object
Example: Heating causes the particles to move faster = more thermal energy
3. Chemical energy - Energy stored in chemical bonds
Examples: wood, food, gasoline, batteries
4. Electrical energy - Energy of moving electrons
Example : electric outlet
5. Radiant or Electromagnetic (Light) energy Travels in waves
Examples: lightbulb, microwave
6. Sound energy- Caused by an object’s vibrations
Example : guitar, boombox
7. Nuclear energy - Potential energy stored in the nucleus of an atom
Example : nuclear power plants, sun
Energy Conversions - A change from one form of energy to another
Conversion example 1 Lamp : electrical energy converts to light energy
Conversion example 2: Water heater : Chemical energy of gas to thermal (heat ) energy
Conversion example 3: Human body : converts chemical energy in food to mechanical energy
Energy is Conserved
Energy is conserved
Energy is Conserved
Pendulum