AQA GCSE Physics Unit 2.7

Descripción

Twenty questions on the seventh section of Unit 2 in AQA GCSE Physics: Energy from the nucleus.
Matthew T
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Resumen del Recurso

Pregunta 1

Pregunta
True or false? Nuclear fission is caused by firing a neutron at a fissionable nucleus.
Respuesta
  • True
  • False

Pregunta 2

Pregunta
What is enriched uranium?
Respuesta
  • Another term for U-235
  • A sample of uranium with about 2-3% fissionable U-235 in it
  • The term used for high-grade uranium

Pregunta 3

Pregunta
Which of these roles does water perform in a nuclear reactor?
Respuesta
  • Reactor core
  • Pressuriser
  • Moderator
  • Control rods
  • Coolant

Pregunta 4

Pregunta
Which part of the nuclear fission reactor is made out of boron?
Respuesta
  • Reactor core
  • Turbine
  • Control rods

Pregunta 5

Pregunta
Which type of nuclear reaction takes place in stars?
Respuesta
  • Nuclear fission
  • Nuclear fusion

Pregunta 6

Pregunta
True or false? Two protons fuse to produce "heavy helium".
Respuesta
  • True
  • False

Pregunta 7

Pregunta
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.
Respuesta
  • True
  • False

Pregunta 8

Pregunta
What is the reaction product of fusion of hydrogen?
Respuesta
  • Uranium
  • Lithium
  • Thorium
  • Helium

Pregunta 9

Pregunta
What type of radiation is radon gas a source of?
Respuesta
  • Alpha
  • Beta
  • Gamma

Pregunta 10

Pregunta
Where was there a nuclear accident in 1986?
Respuesta
  • Bikini Atoll
  • Fukushima
  • Chernobyl

Pregunta 11

Pregunta
How can workers reduce their radiation dose?
Respuesta
  • Keeping a safe distance from radiation sources
  • Using lead or concrete sources to shield themselves
  • Wearing rubber gloves
  • Drinking a glass of water after exposure

Pregunta 12

Pregunta
When was the Big Bang?
Respuesta
  • 3 million years ago
  • 13 million years ago
  • 3 billion years ago
  • 13 billion years ago

Pregunta 13

Pregunta
What name do we give a large cluster of stars?
Respuesta
  • Comet
  • Constellation
  • Asterism
  • Galaxy

Pregunta 14

Pregunta
True or false? The "Dark Age" of the universe began when the universe became transparent.
Respuesta
  • True
  • False

Pregunta 15

Pregunta
True or false? A protostar is a star that is at the end of its life cycle.
Respuesta
  • True
  • False

Pregunta 16

Pregunta
Which stages would you expect a star to go through if it were a small main sequence star?
Respuesta
  • Red supergiant
  • Red giant
  • White dwarf
  • Supernova
  • Black hole
  • Black dwarf
  • Neutron star

Pregunta 17

Pregunta
Which stages would you expect a star to go through if it were a large main sequence star?
Respuesta
  • Red supergiant
  • Red giant
  • White dwarf
  • Supernova
  • Black dwarf
  • Black hole
  • Neutron star

Pregunta 18

Pregunta
What is the heaviest element that can be formed by nuclear fusion?
Respuesta
  • Manganese
  • Iron
  • Cobalt

Pregunta 19

Pregunta
True or false? Heavy elements such as lead are formed during supernovae.
Respuesta
  • True
  • False

Pregunta 20

Pregunta
True or false? The heaviest naturally-occurring element is mendelevium.
Respuesta
  • True
  • False
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