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Gravitational fields (A-level only)

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Question 5

A newly discovered exoplanet has a mass twice that of the Earth. The length of one day on this exoplanet is exactly one-third of an Earth day.

If the radius of a synchronous (geostationary) orbit around the Earth is RRR, what is the radius of a synchronous orbit around this exoplanet?

A

29R\frac{2}{9} R92​R

B

233R\frac{\sqrt[3]{2}}{3} R332​​R

C

633R\frac{\sqrt[3]{6}}{3} R336​​R

D

1833R\frac{\sqrt[3]{18}}{3} R3318​​R

Markscheme

Gravitational fields (A-level only) Questions

  1. A Level
  2. /Physics
  3. /Gravitational fields (A-level only)

52 exam-style questions on AQA A Level Physics Gravitational fields (A-level only), covering Newton's law (A-level only), Gravitational field strength (A-level only), Gravitational potential (A-level only), and Orbits of planets and satellites (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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