P2 Topic 5
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» P2 Topic 5
The fission of U-235 releases 2 or 3
D. Alpha particles.
Control rods are put in a nuclear reactor to
A. Speed up alpha particles
B. Slow down protons
C. Slow down neutrons
D. Absorb neutrons
A nuclear chain reaction produces particles which can
A. Cause fission of a daughter nucleus
B. Cause fission of another uranium nucleus
C. Make a daughter nucleus stable
D. Make another uranium nucleus stable
Nuclear fusion releases
Some properties of nuclear fission and nuclear fusion are shown in the diagrams below. Which diagram correctly classifies the properties?
The diagrams show four arrangements of control rods, fuel rods and moderator in a nuclear reactor. Which arrangement would produce energy at the fastest rate?
It is difficult to produce nuclear fusion because
A. The particles involved are too small to see
B. The high temperature needed has not been reached
C. The particles involved have the same charge
D. The particles involved are radioactive
Which of these can pass through a few centimetres of lead?
A. Alpha particles
B. Beta particles
C. Gamma rays
D. Ultraviolet light
Which of these radiations is least likely to pass through skin cells?
A. Alpha particles.
B. Beta particles.
C. Gamma rays.
The diagram represents nuclear fission Which of the particles shown in the diagram is a daughter nucleus?
In a nuclear power station, the chain reaction is controlled by
A. Absorbing neutrons.
B. Absorbing protons.
C. Producing neutrons.
D. Producing protons.
Which row of the table is correct for the isotopes of uranium ?
A. Atomic number is the same, mass number is different.
B. Atomic number is the same, mass number is the same.
C. Atomic number is different, mass number is the same
D. Atomic number is different, mass number is different
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