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HSC Physics
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Module 1: Kinematics1.1 Motion in a Straight Line
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1.2 Motion on a Plane
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Module 2: Dynamics2.1 Forces
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2.2 Forces, Acceleration and Energy
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2.3 Momentum, Energy and Simple Systems
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Module 3: Waves and Thermodynamics3.1 Wave Properties
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3.2 Wave Behaviour
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3.3 Sound Waves
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3.4 Ray Model of Light
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3.5 Thermodynamics
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Module 4: Electricity and Magnetism4.1 Electrostatics
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4.2 Electric Circuits
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4.3 Magnetism
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Module 5: Advanced Mechanics5.1 Projectile Motion
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5.2 Circular Motion
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5.3 Motion in Gravitational Fields2 Topics
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Module 6: Electromagnetism6.1 Charged Particles, Conductors and Electric and Magnetic Fields
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6.2 The Motor Effect1 Topic
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6.3 Electromagnetic Induction
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6.4 Applications of the Motor Effect1 Topic
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Module 7: The Nature of Light7.1 Electromagnetic Spectrum3 Topics
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7.2 Light: Wave Model
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7.3 Light: Quantum Model2 Topics
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7.4 Light and Special Relativity
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Module 8: From the Universe to the Atom8.1 Origins of the Elements5 Topics
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8.2 Structure of the Atom3 Topics
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8.3 Quantum Mechanical Nature of the Atom2 Topics
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8.4 Properties of the Nucleus2 Topics
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8.5 Deep Inside the Atom4 Topics
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Lesson 28, Topic 2
In Progress
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.