-
The laws of motion are rules made by Isaac Newton that explain how things move. There are three main laws.
-
Forces occur in pairs because every action has a reaction. They always work together.
-
Newton's third law of motion says for every action, there is an equal and opposite reaction. This means if you push something, it pushes back just as hard.
-
Mass affects acceleration because heavier things don't speed up as fast as lighter things when the same force is applied.
-
To diagram forces and Newton's third law, you draw arrows. One arrow shows the action force, and the opposite arrow shows the reaction force.
-
You calculate acceleration by using this formula: Acceleration = Force รท Mass. So, you divide the force by the mass.
-
Actions are the forces you apply, and reactions are the forces that happen because of the actions. They always go together.
-
Action-reaction pairs are two forces that happen at the same time. One is the action force and the other is the reaction force.
-
Acceleration depends on the force applied and the mass of the object. More force means more acceleration, but more mass means less acceleration.
To solve problems with Newton's laws, identify the forces, use the formulas for acceleration, and remember action-reaction pairs to understand how things move!