Energy Sources.

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Presentation transcript:

Energy Sources

What is a fuel? concentrated chemical store of energy energy is usually released by combustion (reaction involving oxygen) exception is “nuclear fuel” which is energy stored in the nucleus of an atom – the energy is released when nuclei are joined (fusion) or split (fission)

Examples of fuels

Original energy source The Sun is the original source for a lot of our energy sources

The Sun as energy origin Sun > heats air > air convects > wind Sun > plants > buried > heat/pressure/time > coal exceptions Moon > tides > tidal radioactive decay > geothermal Nuclear fission/fusion > nuclear

What is energy? forms – thermal, kinetic, light, sound, chemical, nuclear, strain, gravitational energy transfers make things happen e.g. candle burning chemical -> light/thermal

What is the difference in fuel consumption between developed and developing countries?

Energy Sources renewable and non-renewable

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