Zusammenfassung der Ressource
Frage 1
Frage
True or false? Nuclear fission is caused by firing a neutron at a fissionable nucleus.
Frage 2
Frage
What is enriched uranium?
Frage 3
Frage
Which of these roles does water perform in a nuclear reactor?
Antworten
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Reactor core
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Pressuriser
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Moderator
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Control rods
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Coolant
Frage 4
Frage
Which part of the nuclear fission reactor is made out of boron?
Antworten
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Reactor core
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Turbine
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Control rods
Frage 5
Frage
Which type of nuclear reaction takes place in stars?
Antworten
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Nuclear fission
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Nuclear fusion
Frage 6
Frage
True or false? Two protons fuse to produce "heavy helium".
Frage 7
Frage
True or false? In a fusion reactor, the temperature must be very high to overcome forces of reaction and the plasma must be contained in a magnetic field.
Frage 8
Frage
What is the reaction product of fusion of hydrogen?
Antworten
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Uranium
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Lithium
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Thorium
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Helium
Frage 9
Frage
What type of radiation is radon gas a source of?
Frage 10
Frage
Where was there a nuclear accident in 1986?
Antworten
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Bikini Atoll
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Fukushima
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Chernobyl
Frage 11
Frage
How can workers reduce their radiation dose?
Antworten
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Keeping a safe distance from radiation sources
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Using lead or concrete sources to shield themselves
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Wearing rubber gloves
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Drinking a glass of water after exposure
Frage 12
Frage
When was the Big Bang?
Antworten
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3 million years ago
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13 million years ago
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3 billion years ago
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13 billion years ago
Frage 13
Frage
What name do we give a large cluster of stars?
Antworten
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Comet
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Constellation
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Asterism
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Galaxy
Frage 14
Frage
True or false? The "Dark Age" of the universe began when the universe became transparent.
Frage 15
Frage
True or false? A protostar is a star that is at the end of its life cycle.
Frage 16
Frage
Which stages would you expect a star to go through if it were a small main sequence star?
Antworten
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Red supergiant
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Red giant
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White dwarf
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Supernova
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Black hole
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Black dwarf
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Neutron star
Frage 17
Frage
Which stages would you expect a star to go through if it were a large main sequence star?
Antworten
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Red supergiant
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Red giant
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White dwarf
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Supernova
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Black dwarf
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Black hole
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Neutron star
Frage 18
Frage
What is the heaviest element that can be formed by nuclear fusion?
Frage 19
Frage
True or false? Heavy elements such as lead are formed during supernovae.
Frage 20
Frage
True or false? The heaviest naturally-occurring element is mendelevium.