Satellites
In order for a satellite such as the moon to travel in a circular orbit around a planet there needs to be a centripetal force

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Key terms in this lesson
- centripetal force
- The resultant force on an object moving in a circle, directed towards the centre of the circle, needed to keep it on its circular path.
More in Gravitational Fields
- Gravitational Potential.
- Equipotentials.
- The potential gradient.
- Newton's Law of Gravitation.
- Gravitational Field Strength - g.
- Gravitational Potential.
- Potential Gradients
- Area Under a Force vs Distance Graph
All 14 lessons in Gravitational Fields · All OCR A-level Physics topics