Zusammenfassung der Ressource
Frage 1
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Isotopes are different forms of the same element.
Frage 2
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What is the difference between isotopes?
Antworten
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Isotopes have a different number of protons and a different number of neutrons.
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Isotopes have a different number of neutrons and the same number of protons.
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Isotopes have a different number of protons and the same number of neutrons.
Frage 3
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Alpha radiation particles have ________ and ________
Antworten
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Two neutrons.
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Two protons.
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One neutron
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Three protons
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Two electrons
Frage 4
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What properties are typical of a Beta particle?
Frage 5
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Gamma rays are long wavelength electromagnetic waves.
Frage 6
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Nuclear fusion is the process carried out in nuclear power stations to generate energy.
Frage 7
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Which process releases more energy, Fission or Fusion?
Frage 8
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Nuclear fusion is done in stars such as the sun.
Frage 9
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What happens in the process of nuclear fission?
Antworten
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A chain reaction takes place.
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Nuclei are split up.
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Nuclei are joined together.
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The energy released is used to heat water, to create steam for generators.
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The energy released is used to turn the turbines in wind turbines.
Frage 10
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What stage of it's life is our sun at?
Antworten
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Red giant.
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Black hole.
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Protostar
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Main sequence star
Frage 11
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What elements are used in the energy process in stars at our sun's stage?
Antworten
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Helium.
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Uranium-235.
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Plutonium-239.
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Hydrogen.
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Iron.
Frage 12
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What happens after the red giant stage of a star's life?
Antworten
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A supernova takes place as the star explodes.
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A neutron star is created.
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A black hole is created.
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A white dwarf is created.
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A black dwarf is created.
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A planetary nebula is ejected around the star system, from the outer layer of the star.
Frage 13
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Half life is the average time it takes for the number of nuclei in an isotope to halve.
Frage 14
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What is radiation used for in medical practises?
Antworten
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Abortion of babies.
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Sterilising instruments.
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Tracers, followed by an external detector.
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Radiotherapy, the killing of cancerous cells.
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The sterilisation of the mouth in extreme dental cases.