Planets create large gravitational fields.
State what is meant by a gravitational field.
The Earth has a larger gravitational field strength than the moon.
State what is meant by gravitational field strength.
Saturn has a gravitational field strength of 10.5 N kg–1 on its surface and a radius of 58 000 km.
Fig 1.1 represents Saturn as an isolated uniform sphere.
Sketch the lines to represent the gravitational field outside the sphere.
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