0625 – Topic 6.1.2 · Space physics

24.3 Gravitation and orbits (extension)

Syllabus section: The Solar System

Newton’s law of gravitation, F = Gm₁m₂/r², and circular orbits: field strength, orbital speed, period and the mass of a planet from an orbit. Extension material beyond the Cambridge IGCSE 0625 core, following on from 24.2 The Solar System.

Newton’s law of gravitation, F = Gm₁m₂/r², and circular orbits: orbital speed, period and the mass of the central body.