What is nuclear fission?The joining together of two small nucleiThe process which causes the release of energy in the core of the SunThe splitting up of a large and unstable nucleusThe decay of a radioactive nucleus (with the release of an alpha particle, a beta particle, a gamma ray or a neutron)2Which of the following occurs in the reactor of a working nuclear power station which is connected to the National Grid?Nuclear fusionSpontaneous fission onlyBoth spontaneous and induced fissionInduced fission only3The motion of which of the following particles is responsible for nuclear (fission) chain reactions?NeutronsElectronsAlpha particlesProtons4Which of the following elements can be used to stop neutrons within the control rods of a nuclear reactor?BerylliumBoronBariumBismuth5What is nuclear fusion?The joining together of two small nucleiThe process which causes the release of energy in the reactor of a working nuclear power station which is supplying electrical energy to the National GridThe decay of a radioactive nucleus (with the release of an alpha particle, a beta particle, a gamma ray or a neutron)The splitting up of a large and unstable nucleus6Energy is released in both fission and fusion reactions. Which of the following statements about these types of reactions is correct?Whether the mass of the products is less than, equal to or greater than the mass of the reactants depends on the exact reaction which has taken placeThe mass of the products is equal to the mass of the reactantsThe mass of the products is less than the mass of the reactantsThe mass of the products is greater than the mass of the reactants
Question
What is nuclear fission?The joining together of two small nucleiThe process which causes the release of energy in the core of the SunThe splitting up of a large and unstable nucleusThe decay of a radioactive nucleus (with the release of an alpha particle, a beta particle, a gamma ray or a neutron)2Which of the following occurs in the reactor of a working nuclear power station which is connected to the National Grid?Nuclear fusionSpontaneous fission onlyBoth spontaneous and induced fissionInduced fission only3The motion of which of the following particles is responsible for nuclear (fission) chain reactions?NeutronsElectronsAlpha particlesProtons4Which of the following elements can be used to stop neutrons within the control rods of a nuclear reactor?BerylliumBoronBariumBismuth5What is nuclear fusion?The joining together of two small nucleiThe process which causes the release of energy in the reactor of a working nuclear power station which is supplying electrical energy to the National GridThe decay of a radioactive nucleus (with the release of an alpha particle, a beta particle, a gamma ray or a neutron)The splitting up of a large and unstable nucleus6Energy is released in both fission and fusion reactions. Which of the following statements about these types of reactions is correct?Whether the mass of the products is less than, equal to or greater than the mass of the reactants depends on the exact reaction which has taken placeThe mass of the products is equal to the mass of the reactantsThe mass of the products is less than the mass of the reactantsThe mass of the products is greater than the mass of the reactants
Solution
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Nuclear fission is the splitting up of a large and unstable nucleus.
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Both spontaneous and induced fission occur in the reactor of a working nuclear power station which is connected to the National Grid.
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The motion of neutrons is responsible for nuclear (fission) chain reactions.
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Boron can be used to stop neutrons within the control rods of a nuclear reactor.
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Nuclear fusion is the joining together of two small nuclei.
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Whether the mass of the products is less than, equal to or greater than the mass of the reactants depends on the exact reaction which has taken place.
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