Mission NL3 Unbalanced Forces and Acceleration

If a moving object (or rightward moving object or leftward moving object) experiences an unbalanced force, then the object will have an acceleration that is ...

An object at rest will stay at rest; an object in motion will stay in motion with the same speed and direction, unless acted upon by an unbalanced force.

A net force (or unbalanced force) causes an acceleration. The direction of the net force (or unbalanced force) acting upon an object is the same as the direction of the acceleration.