Flashcards
The Nuclear reactor
Flashcards do conjunto (13)
- 1Which atoms undergo nuclear fission?Uranium or plutonium
- 2When hit by a neutron, Uranium will undergo fission. Why ?The uranium nucleus is unstable because there is a big difference in the number of protons and neutrons.
- 3What are the fuel rods made of, in a nuclear reactor?Uranium or plutonium
- 4Uranium needs to be hit by what, before it can undergo fission?A slow moving neutron
- 5What SLOWS DOWN neutrons,The graphite moderator
- 6What is the function of the control rods?They absorbs neutrons to slow down the reaction
- 7What prevents a meltdown in a nuclear reactor?The controls rods absorb the neutrons to slow down the reaction. If they need to stop the reaction completely, the control rods are placed, fully into the reactor.
- 8What is the function of the coolant?Coolant is circulated around a nuclear reactor to
prevent the temperature of the
reactor becoming too high - 9Why is there a concrete shield around a nuclear reactor?To prevent radioactive waste escaping into the environment
- 10What is an environmental advantage of using nuclear power?No carbon dioxide is produced
- 11What is an environmental disadvantage of using nuclear power?It produces radioactive waste with a long half life. This means it has to be stored carefully.
- 12What is produced by nuclear fission?Heat energy, two new chemicals, 2 or 3 neutrons
- 13Balance the equation above by inserting the number of neutrons released during this reactionThere are 2 neutrons
Informações
- Descrição
- GCSE Applied Science FlashCards sobre The Nuclear reactor, criado por Miss C Rodgers em 04-06-2018.
- Criado por
- Miss C Rodgers · jun 2018
- Atualizado
- 3 mai 2023
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