Module Introduction

Module 4—Gravitational Force

A photograph shows an astronaut standing next to a U.S. flag, a spacecraft, and a wheeled vehicle with assorted equipment.

Module Introduction

In Module 4 you will study gravitational forces and gravitational fields. You will learn about Newton's law of universal gravitation and the impact that it has on the world and how people interact with it.

The essential question that you will be looking at in this module is this:

What role do gravitational effects play in the universe?