Energy

What forms does energy take?

• Heat (thermal)• Light (radiant)• Sound• Motion (kinetic)• Electrical• Chemical• Nuclear energy• Gravitational

Two Types of Energy

• Potential– Stored

• Kinetic– Working

Two Categories of Energy

• Renewable• Nonrenewable

Renewable Nonrenewable

• Solar energy • Wind• Geothermal energy • Biomass from plants,– firewood – ethanol biodiesel

vegetable oil

• Hydropower

• Fossil Fuels– Oil– natural gas– Coal

• Nuclear

Energy Conservation • Energy Is Neither

Created Nor Destroyed, only Transformed– When we use energy, it

doesn't disappear.– We change it from one

form of energy into another.

U.S. Energy Consumption

What do you think the future holds?