What is the slowing down of neutrons to increase the probability of their absorption by the atoms in uranium-235 called?A.Nuclear fissionB.Neutron moderationC.Nuclear modificationD.EnrichmentSUBMITarrow_backPREVIOUS

In neutron moderation, neutrons are slowed down so that:A.they will more likely be absorbed by more atoms in uranium-235.B.the control rods will be more effective.C.the chain reactions can be slowed down.D.the nuclear fission reactions are slowed down as well.

Engineers increase the concentration of uranium-235 atoms in nuclear fuel during what process?A.Uranium-235 modificationB.Half-lifeC.EnrichmentD.Nuclear fuel modificationSUBMITarrow_backPREVIOUS

Because uranium-235 isn't found naturally in large quantities, engineers increase its concentration in nuclear fuel so that a chain reaction is more likely to occur. What is the name of this process?A.FusionB.ProliferationC.EnrichmentD.ContainmentSUBMITarrow_backPREVIOUS

What process takes place when uranium-235 splits into two smaller nuclei plus neutrons?A.Beta decayB.FusionC.FissionD.Alpha decay

The diagram shows a neutron colliding with a nucleus of U-235, splitting the nucleus and producing three more neutrons.What is the name of this process?Group of answer choicesFusionFission Flag question: Question 2Question 21 ptsWhat form of energy is released in this process? Flag question: Question 3Question 31 ptsHow does this process can lead to a chain reaction.Group of answer choicesThe protons collide with another uranium nucleusThe neutrons collide with another uranium nucleusThe electrons collide with another uranium nucleus Flag question: Question 4Question 41 ptsThe diagram shows a nuclear reactor.What is the name of the part labelled A? Flag question: Question 5Question 51 ptsWhat is the liquid labelled B? Flag question: Question 6Question 61 ptsWhat is the effect of moving A out of the reactor?Group of answer choicesthe rate of reaction increasesthe rate of reaction decreasesnothing happens Flag question: Question 7Question 71 ptsWhat role is played by the part labelled B?Group of answer choicesmakes the neutrons move fasterslows the neutrons down