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Cambridge AS & A Level Physics

13Gravitational fields

Gravitational fields in Cambridge AS & A Level Physics: what the syllabus expects you to know, the learning objectives and how to practise.
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Lessons

  • Newton's law of gravitation and circular orbits

    45 min

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  • Gravitational fields and field strength

    40 min

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  • Gravitational potential and potential energy

    45 min

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Sample question

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Gravitational fields: sample question

1 mark

A satellite is moved from a distance 2R to a distance 4R from the centre of a planet of radius R. By what factor does the gravitational field strength at the satellite change?

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