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HDHS Trilogy P7 Checkpoint quiz: Radioactivity

Quiz by Alexandra Gill

GCSE (AQA)
Combined Science: Trilogy (ARCHIVED)
English National Curriculum

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9 questions
Show answers
  • Q1
    What does it mean to say that a substance is radioactive?
    Each atom in the substance has too many electrons; these electrons can escape.
    The substance will emit X-rays when heated.
    It contains unstable nuclei that become stable by emitting radiation.
    The nuclei of atoms in the substance will split up, giving out neutrons and energy.
    60s
    6.4.2.1
  • Q2
    Which type of radiation is the most ionising?
    Electromagnetic radiation
    Gamma radiation
    Alpha radiation
    Beta radiation
    60s
    6.4.2.1
  • Q3
    Choose the sentence that describes isotopes.
    Tracer
    Moderator
    Microscope
    atoms of the same elements
    60s
    6.4.1.2
  • Q4
    How does a nuclear fission chain reaction continue?
    Released neutrons ionise other atoms.
    The energy released from each fission is enough to cause further fissions.
    Released neutrons combine with each other.
    Released neutrons cause further fissions.
    60s
    6.4.2.1
  • Q5
    Which type of radiation is stopped by paper?
    Alpha and gamma
    Alpha only
    Beta only
    Beta and gamma
    60s
    6.4.2.3
  • Q6
    In a uranium-powered nuclear reactor, what is the name for the part that slows down the fission neutrons?
    Control rod
    Fuel
    Coolant
    Moderator
    60s
    6.4.2.1
  • Q7
    What is the difference between radioactive contamination and irradiation of a material?
    Contamination involves ionising radiation, but irradiation does not.
    Irradiation exposes a material to ionising radiation; contamination adds radioactive atoms to a material.
    Contamination and irradiation mean the same thing.
    Irradiation makes the material radioactive, but contamination does not.
    60s
    6.4.2.4
  • Q8
    In Rutherford’s experiment, investigating the scattering of alpha particles from very thin gold foil, Geiger and Marsden observed that a few alpha particles were scattered by more than 90°. What conclusion could they make from this observation?
    The nucleus of an atom contains protons and neutrons.
    The atom has a small positively charged nucleus holding most of the atom’s mass.
    Electrons move around inside the atom.
    Most of the atom is empty space.
    60s
    6.4.1.3
  • Q9
    A wooden axe handle is carbon-dated by an archaeologist and found to be 8400 years old. The half-life of the radioactive carbon is 5600 years. What percentage of the initial activity did the archaeologist measure from the wood sample?
    50%
    37.5%
    35%
    100%
    60s
    6.4.2.3

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