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6.2.1 The Sun as a star

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Question 17

Energy is released by nuclear processes in space. Which row in the table correctly identifies the type of nuclear process that powers stars, such as the Sun, and the primary fuel consumed in this reaction?

Type of reactionPrimary fuelAfissionuraniumBfissionhydrogenCfusionhydrogenDfusionhelium \begin{array}{|c|c|c|} \hline & \text{Type of reaction} & \text{Primary fuel} \\ \hline \text{A} & \text{fission} & \text{uranium} \\ \hline \text{B} & \text{fission} & \text{hydrogen} \\ \hline \text{C} & \text{fusion} & \text{hydrogen} \\ \hline \text{D} & \text{fusion} & \text{helium} \\ \hline \end{array} ABCD​Type of reactionfissionfissionfusionfusion​Primary fueluraniumhydrogenhydrogenhelium​​
A

Type of reaction: fission; Primary fuel: uranium

B

Type of reaction: fission; Primary fuel: hydrogen

C

Type of reaction: fusion; Primary fuel: hydrogen

D

Type of reaction: fusion; Primary fuel: helium

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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