1. I. Newton’s Laws of Motion
Ch. 3 & 4 Motion & Forces
I. Newton’s Laws of Motion
“If I have seen far, it is because I have stood on the shoulders of giants.”
- Sir Isaac Newton
(referring to Galileo)

2. A. Newton’s First Law Newton’s First Law of Motion
An object at rest will remain at rest and an object in motion will continue moving at a constant velocity unless acted upon by a net force.

3. F = ma B. Newton’s Second Law Newton’s Second Law of Motion
The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.
F = ma

4. C. Newton’s Third Law Newton’s Third Law of Motion
When one object exerts a force on a second object, the second object exerts an equal but opposite force on the first.