ISAAC NEWTON'S
LAWS OF MOTION

First Law of Motion

Ways to Say

Second Law of Motion

The Mighty F=ma

Ways to Say

Third Law of Motion

Ways to Say

Problems

These laws describe how common objects move under the influence of forces. The first builds on Galileo’s concept of inertia; the second describes the relation between force, mass, and acceleration; and the third explains how forces always happen in pairs.