Cambridge AS & A Level Physics
13.2Gravitational force between point masses
Gravitational force between point masses in Cambridge AS & A Level Physics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic23 practice questions1 lesson
Learning objectives
What the syllabus expects you to be able to do.
- 13.2.1Treat a uniform sphere as a point mass at its centre for external points.
- 13.2.2Recall and use Newton's law of gravitation.
- 13.2.3Analyse circular orbits by linking gravitational force to centripetal acceleration.
- 13.2.4Describe the geostationary orbit (24 h period, west to east, above the Equator).
Lessons
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Newton's law of gravitation and circular orbits
45 min
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Sample question
A sample question on this topic. Answer it, check it, then read the worked answer.
Turn Gravitational force between point masses into a strength.
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