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Energy Resources. What is energy?. Energy makes change possible! The ability to do work. Do we use energy everyday?. Forms of Energy. Potential Chemical Mechanical Nuclear. Kinetic Thermal Mechanical (motion) Sound Electrical Energy. Sources of Energy. Hydropower Nuclear Wind

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Presentation Transcript

What is energy
What is energy?

  • Energy makes change possible!

  • The ability to do work.

  • Do we use energy everyday?


Forms of energy
Forms of Energy

  • Potential

    • Chemical

    • Mechanical

    • Nuclear

  • Kinetic

    • Thermal

    • Mechanical (motion)

    • Sound

    • Electrical Energy


Sources of energy
Sources of Energy

  • Hydropower

  • Nuclear

  • Wind

  • Solar

  • Fossil Fuels


Resources renewable vs nonrenewable
Resources- Renewable vs. Nonrenewable

  • Nonrenewable- Supplies are limited.

    • 92% of energy consumed in the US comes from nonrenewable sources.

    • Oil (petroleum)

    • Natural gas

    • Coal

    • Uranium

  • Renewable- they are naturally replenished everyday!

    • 8% of energy consumed in the US comes from this source

    • Biomass

    • Hydropower

    • Solar

    • Wind


What is your energy iq
What is your energy IQ?

  • How much do you know about energy? Let’s take the a quiz to see!

  • http://205.254.135.24/kids/energy.cfm?page=quiz


Hydropower hydro electrical
Hydropower (hydro electrical)

  • RENEWABLE SOURCE

  • Relies on the water cycle

  • Mechanical energy from moving water

  • First hydroelectric plant opened in 1882 in Wisconsin

  • Most of US hydropower comes from west, such as the Grand Coulee Dam

  • Hoover Dam is another famous Dam



Nuclear
Nuclear

  • NONRENEWABLE

  • Nuclear energy is energy from atoms

  • Energy is released from the atoms before it becomes electricity

    • Fission- splitting atoms

    • Fusion- atoms are combined, this is the Sun produces energy

  • Uranium is used- common metal found in rocks

    • When it is split, it creates heat, which is used to produce electricity


Perry Nuclear Plant, OHIO

Diablo Canyon, California


Wind

  • RENEWABLE SOURCE- energy from moving air

  • Wind is caused by uneven heating- hot air rises (convection)

  • Old fashioned windmills are now called wind turbines

  • The fans of the turbine move with the wind, and turn the generator to make electricity

  • In the US, only 2% of energy comes from wind


Solar
Solar

  • RENEWABLE SOURCE- found wherever the sun shines

  • Solar energy converted to thermal energy

    • Heat water, heat spaces, heats fluids

  • Converted in two ways:

    • Solar cells- change sunlight directly to electricity. (EXPENSIVE)

    • Solar thermal/electric power plants- solar energy to heat a fluid and produces steam that powers a generator.

      • 13 plants in the US


Fossil fuel
Fossil Fuel

  • Nonrenewable

  • Oil (petroleum products-gasoline, diesel fuel and propane), natural gas, coal

  • Come through ground as liquids, gases, and solids

  • Burn fossil fuels for heat to generate electricity



U s energy consumption 2010
U.S. Energy Consumption (2010)

  • Biomass-4.4% (wood, crops, manure, garbage)

  • Hydropower- 2.6%

  • Geothermal- 0.2%

  • Wind- 0.7%

  • Solar- 0.1%

  • Petroleum- 36.7%

  • Natural Gas-25.1%

  • Coal-21.2%

  • Uranium- 8.6%


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