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Nuclear fission

Quiz by Peter Clarke

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18 questions
Show answers
  • Q1
    Fission can either be induced or...
    spontaneous
    30s
  • Q2
    What is absorbed by a fissionable nucleus which causes it to become more unstable?
    alpha particle
    neutron
    electron
    proton
    20s
  • Q3
    The only fissionable elements
    uranium and protactinium
    plutonium and thorium
    uranium and plutonium
    uranium and neptunium
    20s
  • Q4
    Slows down the neutrons in a reactor to increase the chance of fissions
    moderator
    30s
  • Q5
    Absorbs neutrons to control the rate of fission
    concrete shielding
    control rods
    moderator
    reactor core
    20s
  • Q6
    Enriched uranium contains about 2-3%
    Uranium-235
    Uranium-239
    Uranium-238
    Uranium-236
    20s
  • Q7
    Charge of an alpha particle
    +1
    +2
    -1
    -2
    20s
  • Q8
    When the parent nucleus splits, as well as neutrons, what is produced?
    fragment nuclei
    30s
  • Q9
    3 neutrons are always released by fission
    FALSE
    TRUE
    20s
  • Q10
    Not a problem with nuclear energy
    Large amounts of energy released
    Radiation
    Risk of disaster
    Disposal of waste
    20s
  • Q11
    Half-life: time taken for the ________ ______ to halve.
    count rate
    30s
  • Q12
    Most penetrating radiation
    beta
    alpha
    gamma
    IR
    20s
  • Q13
    Least ionising radiation
    beta
    gamma
    IR
    alpha
    20s
  • Q14
    Major advantage of ultrasound over X-rays
    better image
    Non-ionising
    3D image
    colour image
    20s
  • Q15
    Different forms of the same element
    isotopes
    20s

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