Energy• Energy of Movement• Electromagnetic• Chemical

Mechanical Energy We have always relied on mechanical

energy to do work. History is dotted with many discoveries

that have reduced effort required to do this work.

Wheels, pulleys, gears and levers have all been used to reduce effort

Watt

Chemical Energy The chemical reactions that occur in nature

all involve a change in energy level – giving off energy or requiring energy to occur

Photosynthesis and respiration in living things; chemical reactions in nature such as oxidation and electrolytic replacement

These chemical processes can be harnessed to generate other forms of energy such as electricity, heat and even light

Electromagnetic Energy Magnetic fields Radiation

Faraday

Voltaire

Franklin

The Future Fuel Cells Electric Cars Alternate Renewable Energy Sources