Cambridge AS & A Level Physics
13.3Gravitational field of a point mass
Gravitational field of a point mass 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.
- 13.3.1Derive g = GM/r² from Newton's law and the definition of field strength.
- 13.3.2Recall and use g = GM/r².
- 13.3.3Explain why g is nearly constant for small height changes near the Earth.
Lessons
- Full access
Gravitational fields and field strength
40 min
Join to read every lesson, or see what Full access includes.
Sample question
A sample question on this topic. Answer it, check it, then read the worked answer.
Turn Gravitational field of a point mass into a strength.
Practise with instant marking, see your mastery grow and get a study plan built around your exam date.