1. Definition of force:
Force is any interaction that tends to change the motion of an object.
2. Newton's First Law of Motion:
It states that objects continue to move in a state of constant velocity unless acted upon by an external net force or resultant force.
3. Newton's Second Law of Motion:
It states that the acceleration of an object is dependent upon two variables - the net force acting on the object and the mass of the object.
4. Newton's Third Law of Motion:
It states that there is an equal and opposite reaction for every action.