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HSC Physics

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  1. Module 5: Advanced Mechanics
    5.1 Projectile Motion
  2. 5.2 Circular Motion
  3. 5.3 Motion in Gravitational Fields
    2 Topics
  4. Module 6: Electromagnetism
    6.1 Charged Particles, Conductors and Electric and Magnetic Fields
  5. 6.2 The Motor Effect
    1 Topic
  6. 6.3 Electromagnetic Induction
  7. 6.4 Applications of the Motor Effect
    1 Topic
  8. Module 7: The Nature of Light
    7.1 Electromagnetic Spectrum
    3 Topics
  9. 7.2 Light: Wave Model
  10. 7.3 Light: Quantum Model
    2 Topics
  11. 7.4 Light and Special Relativity
  12. Module 8: From the Universe to the Atom
    8.1 Origins of the Elements
    5 Topics
  13. 8.2 Structure of the Atom
    3 Topics
  14. 8.3 Quantum Mechanical Nature of the Atom
    2 Topics
  15. 8.4 Properties of the Nucleus
    2 Topics
  16. 8.5 Deep Inside the Atom
    4 Topics

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  • EduKits Education
  • Michael
HSC Physics 8.4 Properties of the Nucleus Nuclear Fission
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Lesson 15, Topic 2
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Nuclear Fission

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Nuclear fission is a process of splitting a large atomic nucleus into two or more smaller nuclei known as fission products.

Fission may be spontaneous for unstable nuclei, but may also be triggered by a bombarding particle.

These reactions release a lot of energy as each particle undergoes a series of decays, each releasing kinetic energy through expelled particles.

Fission Chain Reactions

Neutrons released in fission can be absorbed by other nuclei, producing further fusion reactions.

  • If only one neutron per event is allowed to cause another fission, the reaction is controlled and self-sustaining.
  • If multiple neutrons are allowed to cause further fission, the reaction is uncontrolled and can result in an explosion.