Nuclear fission releases energy. Describe the process of nuclear fission inside a nuclear reactor.

a) Name the process, nuclear fission or nuclear fusion, in which energy releasedper unit mass is more.(b) Name the process fission or fusion which is possible at ordinary temperature.(c) State one difference between nuclear fission and fusion.

A new type of power station is being developed that will generate electricity using nuclear fusion. Explain how the process of nuclear fusion leads to the release of energy.

What is nuclear fission?A.The gain of nuclear massB.The splitting of a nucleusC.The formation of an ionD.The joining of nucleiSUBMITarrow_backPREVIOUS

What is nuclear fission?The splitting up of a large and unstable nucleusThe process which causes the release of energy in the core of the SunThe decay of a radioactive nucleus (with the release of an alpha particle, a beta particle, a gamma ray or a neutron)The joining together of two small nuclei2Which of the following occurs in the reactor of a working nuclear power station which is connected to the National Grid?Nuclear fusionInduced fission onlySpontaneous fission onlyBoth spontaneous and induced fission3The motion of which of the following particles is responsible for nuclear (fission) chain reactions?ElectronsNeutronsProtonsAlpha particles4Which of the following elements can be used to stop neutrons within the control rods of a nuclear reactor?BerylliumBoronBismuthBarium5What is nuclear fusion?The 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 splitting up of a large and unstable nucleusThe joining together of two small nucleiThe decay of a radioactive nucleus (with the release of an alpha particle, a beta particle, a gamma ray or a neutron)6Energy is released in both fission and fusion reactions.  Which of the following statements about these types of reactions is correct?The mass of the products is equal to the mass of the reactantsWhether 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 less than the mass of the reactantsThe mass of the products is greater than the mass of the reactants

In a nuclear fission reaction, a freely moving neutron is introduced to a nuclear fuel, such as uranium-235. What happens next?A.A neutron is absorbed by an atom's nucleus.B.The nucleus becomes unstable.C.Heat is released by the neutron.D.The neutron breaks apart.SUBMITarrow_backPREVIOUS