Universal gravitation, gravitational fields, Kepler's third law and satellites

What this note covers

1. Newton's law of universal gravitation
2. Gravitational field strength
3. Fields from two masses and null points
4. Field diagrams for one and two masses
5. Kepler's third law and circular orbits
6. Satellites, free fall and weightlessness
7. Exam technique for gravitation questions

7 sections · 10 key terms & formulas · 6 common mistakes