Unit: 6 Newton's Laws of Motion

Newton's First Law of Motion

An object in motion will stay in motion, and an object at rest will stay at rest until an unbalanced force acts on it.

It is also known as the Law of Inertia

Newton's Second Law - Law of Acceleration

Force is equal to the mass of the object multiplied by the acceleration of the object.

Newtons Third Law of Motion

For every action there is an equal but opposite reaction

Net Force

Net Force is the sum of all forces actions upon an object

If the sum ia greater than 0, then the object will move in the direction of the force

Unbalanced Force

A force that is large enough that causes a change in motion.

Net force can be an unbalanced force

Weight v Mass

Weight is a measure of how much force on an object

Mass is a measure of how much matter in an object

Changing Mass and Acceleration

Changing mass will change the force

Changing the acceleration will change the force

Force Formula

F=m x a

Formula for mass

M=f/a