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Edexcel IGCSE Physics 7.18 Nuclear Fission Questions

Follow U-235 as it absorbs a neutron, splits into smaller daughter nuclei and releases kinetic energy, then calculate the energy from a single fission event.

Syllabus
First assessment 2019
Course
Physics 4PH1

Exam points

  • Describe fission as a neutron being absorbed by U-235, making an unstable nucleus that splits into smaller daughter nuclei and neutrons.
  • State that fission transfers energy to the kinetic store of its products.
  • Calculate the energy released by one U-235 fission using the total fuel-pellet energy and number of U-235 atoms.

Edexcel IGCSE Physics 7.18 Nuclear Fission Questions question 1

[Maximum number: 5]

Diagram 1 shows some of the stages of electricity generation in a nuclear power station.

Diagram 1

Diagram 1

Question (a)

(a)

Nuclear fission takes place inside the reactor of the nuclear power station.

[ 5 ]

Question (i)

(i)

Give the name of a fuel that could be used in the reactor.

[ 1 ]

Question (ii)

(ii)

Energy is released from the fuel in the reactor by nuclear fission.

Describe the process of nuclear fission that takes place inside the reactor.

[ 4 ]
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