the tendency of an object to resist a change in motion unless an outside force acts of the object

Whenever one object exerts a force on a second object, the second 

object exerts an equal and opposite force on the first

a push or a pull exerted on an object in order to change the motion of the object; force has size and direction

an object’s change in position 

relative to a reference point 

The acceleration of an object depends on the mass of the object and the amount of force applied

the combination of all of the forces 

acting on an object

a measure of the amount of matter in an object

____________ will not cause a change in the motion of a moving object or cause a nonmoving object to start moving

________ produce a change in the object’s motion. It could be a change in its speed or direction or both