If you need something other than your textbook, ask for it. Move a book across a table in a way that demonstrates sliding friction. Move a book across a table in a way that demonstrates rolling friction. Most of the time an object is being acted on by more than one force. For instance, there are several forces acting on you sitting in your chair right now.
Balanced forces cause no change in motion.
Unbalanced forces always cause a change in motion. Newton's Three Laws of Motion explain all aspects of motion. Newton's First Law describes motion produced by balanced forces. An object at rest will remain at rest, and a moving object will remain at a constant velocity unless unbalanced forces act on it. Newton was first to use the term inertia to describe the tendency of objects to remain in motion or stay at rest.