Kinetic and Potential Energy have many forms. 1. Mechanical Energy - Energy associated with motion...

Kinetic and Potential Energy have many

forms

1. Mechanical Energy -

Energy associated with Energy associated with motion or positionmotion or position

Examples: most moving objects have mechanical energy

2. Thermal Energy (Heat) -

Total energy of the Total energy of the particles in an objectparticles in an object

Example: Heating causes the particles to move faster = more thermal energy

3. Chemical energy -

Energy stored in Energy stored in chemical bondschemical bonds

Examples: wood, food, gasoline, Examples: wood, food, gasoline, batteriesbatteries

4. Electrical energy -

Energy of moving Energy of moving electronselectrons

Example : electric outletExample : electric outlet

5. Radiant or Electromagnetic (Light) energy

Travels in wavesTravels in waves

Examples: lightbulb, Examples: lightbulb, microwavemicrowave

6. Sound energy-

Caused by an object’s Caused by an object’s vibrationsvibrations

Example : guitar, boomboxExample : guitar, boombox

7. Nuclear energy -

Potential energy stored in Potential energy stored in the nucleus of an atomthe nucleus of an atom

Example : nuclear power Example : nuclear power plants, sunplants, sun

Energy Conversions -

A change from one form A change from one form of energy to anotherof energy to another

Conversion example 1

Lamp : electrical Lamp : electrical energy converts to energy converts to

light energylight energy

Conversion example 2:

Water heater : Chemical Water heater : Chemical energy of gas to thermal energy of gas to thermal

(heat ) energy(heat ) energy

Conversion example 3:

Human body : converts Human body : converts chemical energy in food to chemical energy in food to

mechanical energymechanical energy

Energy is Conserved

Energy is conserved

Energy is Conserved

Pendulum