Newton's Laws of Motion
by
abigailcarterfhs
Last updated 6 years ago
Discipline:
Science Subject:
Physics
Grade:
9


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.
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