9702 · 13.1
Gravitational field
Welcome to the fundamental force that governs the cosmos: **gravity**! In this lesson, we'll dive into **gravitational fields**, understanding how massive objects influence the space around them, pulling everything together. Get ready to explore Newton's groundbreaking laws and discover how to quantify these invisible forces. This pilot aligns with **Senpai Corner** A Level notes (2025–2027) for topic **13.1**.
Need to know
What you need to know
- $G$ is the universal gravitational constant, $6.67 \times 10^{-11} \text{ N m}^2 \text{ kg}^{-2}$.
- The force decreases rapidly with distance (inverse square law).
- This law applies to point masses or uniform spheres where $r$ is the distance between centres.
Explanation
Gravitational field
- $G$ is the universal gravitational constant, $6.67 \times 10^{-11} \text{ N m}^2 \text{ kg}^{-2}$.
- The force decreases rapidly with distance (inverse square law).
- This law applies to point masses or uniform spheres where $r$ is the distance between centres.