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6.2.1 The Sun as a star

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Question 19

Which of the following describes the primary reaction responsible for the immense energy output of main-sequence stars, such as the Sun?

A

Nuclear fission of helium nuclei to form hydrogen

B

Chemical combustion of hydrogen in the presence of oxygen

C

Nuclear fusion of hydrogen nuclei to form helium nuclei

D

Nuclear fission of heavy radioactive isotopes in the stellar core

Markscheme

6.2.1 The Sun as a star Questions

  1. IGCSE
  2. /Physics
  3. /6.2.1 The Sun as a star

20 exam-style questions on CIE IGCSE Physics 6.2.1 The Sun as a star. Each one has a worked solution and a mark scheme showing where the marks go.

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