9702 · 13.3
Gravitational field of a point mass
Welcome to the fascinating world of **gravitational fields**! In this lesson, we'll dive into how massive objects exert an invisible 'pull' on everything around them. We'll explore the fundamental laws governing this interaction, learn to calculate forces, understand field strength, and grasp the concept of gravitational potential energy. Get ready to explore the universe's most fundamental force! This pilot aligns with **Senpai Corner** A Level notes (2025–2027) for topic **13.3**.
Need to know
What you need to know
- Force ($F$) is directly proportional to the product of masses ($m_1m_2$).
- Force ($F$) is inversely proportional to the square of the distance ($r^2$).
- $G$ is the universal gravitational constant ($6.67 \times 10^{-11} \text{ N m}^2 \text{kg}^{-2}$).
- The force is always attractive.
Explanation
Gravitational field of a point mass
- Force ($F$) is directly proportional to the product of masses ($m_1m_2$).
- Force ($F$) is inversely proportional to the square of the distance ($r^2$).
- $G$ is the universal gravitational constant ($6.67 \times 10^{-11} \text{ N m}^2 \text{kg}^{-2}$).
- The force is always attractive.