Newton's Laws of Motion

By: Abi Carter

Newton's First Law of Motion

Newton's 3 Laws of Motion

First Law

Second Law

Videos relating to the laws of motion

Third Law

An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force. This law is often called "the law of inertia".

This means that objects want to keep doing what they're doing and they resist changes in motion. If there is no unbalanced force to affect it's motion, the object will continue doing what it's doing.

In this picture gravity is acting upon the rollercoaster causing it to move, but the friction acting between the track and wheels will eventually slow down and stop the rollercoaster.

This means that heavier objects need more force to travel the same distance of objects that are lighter. So Force equals Mass multiplied by the acceleration. (F=M x A)

Acceleration is produced when a force acts on a mass. The greater the mass of the object being acceleration the greater amount of force needed to accererate the object.

Newton's Third Law of Motion

Newton's Second Law of Motion

In this picture the boy pulling the heavier rock with a bigger mass is going to have to use more force than the boy with the small rock to move it the same amount of distance.

For every action there is an equal and opposite reaction.

In this picture the two people are both using equal forces in opposite directions.

This means that every force has a equal reaction force that is travelling the opposite direction.