Energy Looking Back, Looking Ahead

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Presentation transcript:

Energy Looking Back, Looking Ahead Forms of Energy Thermal Chemical Electrical Sound Light Nuclear Types of Energy Kinetic Potential Sources of Energy: Which resources provide us with energy?

Renewable vs. Nonrenewable Resources

The original energy source for most other energy resources… Energy Resource – a natural resource that can be converted to useful forms of energy The original energy source for most other energy resources… The Sun

Which resources provide the United States with energy? http://www.eia.gov/totalenergy/data/annual/perspectives.cfm

Nonrenewable Resources Can’t be easily replaced after they’re used Fossil Fuels – formed from the buried remains of ancient plants and animals - Contain stored energy obtained from the sun Coal Petroleum Natural Gas

Coal, Petroleum, Natural Gas Fossil Fuels Coal, Petroleum, Natural Gas Advantages Disadvantages Provide a large amount of thermal energy per unit of mass Non-renewable Easy to obtain and easy to transport Burning produces smog and acid rain Can be used to produce electrical energy and make products Risk of oil spills

Nonrenewable Resources Burning a fossil fuel releases its energy. Energy Conversions Chemical - Thermal - Kinetic - Electric

Nonrenewable Resources Nuclear power plants operate like coal plants, but with a different fuel.

Nuclear - Thermal - Kinetic - Electric Nuclear Power Plants Energy Conversions Nuclear - Thermal - Kinetic - Electric

Renewable Resources Can be used and replaced in nature Solar Energy Hydropower (Water) Wind Energy Geothermal Energy Biomass

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