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Gravitational fields (A-level only)

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Question 29

A spherical planet has radius $R\,$ and uniform density $ρ\rho$ . The gravitational field strength at its surface is $g$ . What is the gravitational field strength at the surface of a second spherical planet of radius $3R\,$ and uniform density $4ρ4\rho$ ?

A

$3 g$

B

$8 g$

C

$12 g$

D

$36 g$

Markscheme

Gravitational fields (A-level only) Questions

A Level
Physics
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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