Nuclear Fission and Fusion
Physics ⇒ Modern Physics
Nuclear Fission and Fusion starts at 11 and continues till grade 12.
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See sample questions for grade 11
A fission reaction releases 200 MeV per event. How much energy is released by 1 mole of uranium-235 undergoing fission? (Avogadro's number = 6.02 × 1023)
A nuclear power plant produces 1 GW (1 × 109 W) of electrical power. If the efficiency is 33%, what is the total thermal power produced by the reactor?
A sample of uranium-235 undergoes fission, releasing 3 neutrons per event. If only one neutron from each event causes further fission, what is the multiplication factor (k) of the reaction?
Calculate the energy released when 0.001 kg of mass is converted entirely into energy. (Use c = 3.0 × 108 m/s)
Describe the main difference in the waste products of nuclear fission and fusion.
Describe the main safety concern associated with nuclear fission reactors.
Describe the role of a moderator in a nuclear reactor.
Describe what is meant by a 'chain reaction' in the context of nuclear fission.
Explain the difference between nuclear fission and nuclear fusion.
Explain why a chain reaction does not occur in natural uranium without enrichment.
Explain why nuclear fusion requires higher temperatures than nuclear fission.
Explain why the mass of a nucleus is less than the sum of the masses of its individual nucleons.
