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Date November 2020 Marks available 1 Reference code 20N.1.SL.TZ0.23
Level Standard level Paper Paper 1 Time zone 0 - no time zone
Command term Question number 23 Adapted from N/A

Question

Planet X has a gravitational field strength of 18Nkg-1 at its surface. Planet Y has the same density as X but three times the radius of X. What is the gravitational field strength at the surface of Y?

A.  6ms-2

B.  18ms-2

C.  54ms-2

D.  162ms-2

Markscheme

C

Examiners report

[N/A]

Syllabus sections

Core » Topic 6: Circular motion and gravitation » 6.2 – Newton’s law of gravitation
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Core » Topic 6: Circular motion and gravitation
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