Newton's First Law
Every object continues in a state of rest, or of
motion in a straight line at a constant speed, unless it is compelled to change that state by forces exerted upon it.
motion in a straight line at a constant speed, unless it is compelled to change that state by forces exerted upon it.
Newton's Second Law
the acceleration of an object produced by a net
force is directly proportional to the magnitude of the net force acting on that object, is in the same direction as the net force and the acceleration is inversely proportional to the mass of the object.
force is directly proportional to the magnitude of the net force acting on that object, is in the same direction as the net force and the acceleration is inversely proportional to the mass of the object.
Newton's Third Law
Whenever there are two objects and one object
exerts a force on the other object, the second object exerts an equal and opposite force on the first object.
exerts a force on the other object, the second object exerts an equal and opposite force on the first object.
Force
a push or a pull; any influence that tends to accelerate an
object.
object.
Net Force
all of the forces acting on an object.
Mass
the amount of matter in an object; measured in kilograms
Acceleration 
change in velocity, speed and direction, of an object per unit of time
action force
one of the pair of forces described in Newton's third law.
reaction force
the force that is equal in strength and opposite in direction to the action force and occurs simultaneously
interaction
the force that is equal in strength and opposite in direction to the action force and occurs simultaneously