Physics P2 - Energy from the nucleus

Physics P2 - Energy from the nucleus

1. Nuclear Fission

   • Energy is released in a nuclear reactor due to nuclear fission
   • A chain reaction can occur
   • A nucleus releases 2/3 neutrons
     • It releases energy (radiation and kinetic)
       • A chain reaction means a steady release of energy is produced in a reactor

2. Inside a nuclear reactor

   • A nuclear reactor contains control rods and fuel rods and high pressured water
     • The water is a moderator that slows down the collisions so it will be effective
   • Control rods absorb extra neutrons - this controls the chain
   • The water acts as a coolant and is pumped trhough the core
   • The core is made of thick steel to withstand the extreme temperatures within

3. Nuclear fusion

   • Two small nuclei release energy when they fuse together and form a larger nucleus

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