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8.1 Solar system; stability of orbital motions; satellites

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Question 22
H

Why does the temperature at the centre of a protostar rise high enough for fusion to begin?

[1]
A

Gravity pulls the particles inwards, so the particles gain kinetic energy.

B

Fusion in the outer layers transfers energy inwards towards the centre.

C

Light from nearby stars is absorbed by the particles near the centre.

D

The magnetic field of the cloud squeezes the particles at the centre.

Markscheme

8.1 Solar system; stability of orbital motions; satellites Questions

  1. GCSE
  2. /Physics
  3. /8.1 Solar system; stability of orbital motions; satellites

41 exam-style questions on AQA GCSE Physics 8.1 Solar system; stability of orbital motions; satellites, covering 8.1.1 Our solar system, 8.1.2 The life cycle of a star, and 8.1.3 Orbital motion, natural and artificial satellites. Each one has a worked solution and a mark scheme showing where the marks go.

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