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6.2 Stars and the Universe

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Question 39

Which process is the main source of energy in a stable main-sequence star?

A

Nuclear fission of uranium-235 into barium and krypton

B

Nuclear fusion of hydrogen nuclei to form helium nuclei

C

Nuclear fission of helium nuclei to produce hydrogen nuclei

D

Chemical combustion of hydrogen with oxygen to form water

Markscheme

6.2 Stars and the Universe Questions

  1. IGCSE
  2. /Physics
  3. /6.2 Stars and the Universe

104 exam-style questions on CIE IGCSE Physics 6.2 Stars and the Universe, covering 6.2.1 The Sun as a star, 6.2.2a Galaxies and astronomical distances, 6.2.2b The life cycle of a star, 6.2.3a Galaxies and the scale of the Universe, 6.2.3b Redshift, 6.2.3c The Big Bang Theory and cosmic microwave background radiation, and 6.2.3d The Hubble constant and the age of the Universe. Each one has a worked solution and a mark scheme showing where the marks go.

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