Nuclear Energy

The extraordinary power locked in the nucleus of atoms
is shown when the explosion of a nuclear bomb releases some of the energy.

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Nuclear Energy

  • energy that holds the nucleus of every atom together is called nuclear energy.
  • every star in the universe – it can be released either by nuclear fusion or nuclear fission.
  • nuclear fusion  –  it happens when nuclear energy is released as nuclei join together – this same happens inside our Sun and other stars when they are squeezed together by gravity. (diagram)
  • nuclei  –  usually only tiny nuclei, such as those of hydrogen and helium, fuse (join); only under extreme pressure in huge, exploding stars do big nuclei – such as those of iron.
  • nuclear fission  –  it happens when nuclear energy is released by the splitting of nuclei; this method used in most power stations and in atomic bombs – involves splitting big nuclei; such as Uranium-235 and plutonium.

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Did you know?

  • atomic bomb  –  energy is released in one second.
  • power station  –  control rods ensure that nuclear reactions are slowed down to release energy; bit and bit (step and step).

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How powerful between mankind and natural universe?

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Back to The Universe page.

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