Page 283 - Physics Coursebook 2015 (A level)

Learning outcomes
You should be able to:
■■ describe a gravitational field as a field of force and define gravitational field strength g
■■ recall and use Newton’s law of gravitation
■■ solve problems involving the gravitational field strength
of a uniform field and the field of a point mass
■■ define and solve problems involving gravitational
potential
■■ analyse circular orbits in an inverse square law field,
including geostationary orbits
Chapter 18:
Gravitational fields
271