Nuclear Fusion

Physics: Cambridge International GCSE Supplement, topic 5.1.9

Nuclear Fusion

Nuclear fusion fuses (joins) 2 smaller nuclei to create 1 larger nucleus. Creating this larger nucleus releases energy.

Stars

Stars

  • Stars generate their energy from the fusion of hydrogen and helium nuclei.
Hydrogen bomb

Hydrogen bomb

  • Hydrogen bombs use nuclear fusion to release lots of energy in an explosion.
Sustainable energy

Sustainable energy

  • Scientists have tried to create sustainable energy using nuclear fusion.
  • This is difficult as hydrogen must be heated to over 100 million °C.

Test yourself on Nuclear Fusion

  • Which of these describes nuclear fusion?

  • Which of the following are true of nuclear fusion?

  • Which of these correctly describes the difference between atom and hydrogen bombs?

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