GCSE Combined Science (AQA)

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Nuclear Fuel

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Energy National and global energy resources

Nuclear Fuel

2:54 Non-Renewable Energy Resources
Spec 4.1.3
Previous Fossil Fuels Next Fuel Supplies
  • Nuclear energy holds protons and neutrons together in an atom.
  • Atoms have a central nucleus containing protons and neutrons, with electrons orbiting the nucleus.
  • Energy is stored in nuclear bonds, similar to chemical bonds between atoms.
  • Nuclear energy can be released by splitting a large nucleus into smaller nuclei, releasing energy due to fewer bonds in smaller nuclei.
  • Nuclear reactors generate electricity by splitting uranium and plutonium nuclei, specifically uranium-235 and plutonium-238.
  • The splitting process produces heat, which boils water to create steam that spins a turbine.
  • The steam from reactor towers is not pollution but simply steam.
  • Uranium and plutonium are non-renewable fuels, mined from uranium ore found in soil, rock, and water.
  • These fuels are expected to last thousands of years due to their recent technology and high energy output compared to fossil fuels.
  • Advantages of nuclear fuels include zero carbon emissions and high energy output.
  • Disadvantages include being non-renewable and producing radioactive byproducts, requiring careful disposal of nuclear waste.

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