Gravitational fields and potential energy

What this note covers

1. Universal gravitation and the meaning of separation
2. Field strength is force per unit mass
3. Superposition and points of zero resultant field
4. Near-surface work and gravitational energy changes
5. Inclined planes and gravitational components
6. Testing inverse-square behaviour and evaluating evidence

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