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Equipotentials.

Equipotentials are lines that join points with the same gravitational potential. The equipotentials around the Earth are circles which are space further apart at increasing distance from the surface.Near the Earths' surface the equipotential are approximately equally spaced parallel lines.

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Specification: Edexcel Physics (9PH0), A-level, Topic 12: Gravitational Fields. Topic: Gravitational Fields.

Key terms in this lesson

rest energy
The energy equivalent of a particle's mass when it is at rest, given by E equals mc squared.

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