Newton's Three Laws of Motion
Newton's Law of Inertia
The Law of Inertia states that if something is at rest it will stay at rest or If something is moving it will move in a straight line unless an unbalanced force acts on it. Inertia is the resistance to change in motion. If an object has more mass it has greater inertia.
Newton's Law of Force and Acceleration
Newton's Second Law of Motion states that the acceleration of an object depends on the mass of the object and the force applied to it. The formula you use for Newton's Second Law of Motion is Force= Mass times Acceleration. The more force applied to the object the faster the object will go.
Newton's Law of Action/Reaction
Newton's Third Law of Motion says that for every action there is an equal and opposite reaction. Forces are always paired. The forces used on the action are the same on the reaction.