Gravity and Universal Gravitation
Helpful before this lesson
- Not completed: Force and Net Force
- Not completed: Newton's Second Law of Motion
These topics can make this lesson easier, but you can start now.
Learning Objectives
- Students will understand Newton's law of universal gravitation
- Students will calculate gravitational force between objects
- Students will understand why g = 9.8 m/s² at Earth's surface
Core Concepts
- Gravity: attractive force between all masses
- Gravitational force decreases with distance squared
- g varies with location and altitude