A(n) is the location of an object. a(n) is any push or pull from one object to another. when work is done on an object, the amount of it has changes.

A position is the location of an object.
A force is any push or pull from one position to another. In other words a force is a push or pull that causes an object to move, stop, or change direction. 
When work is done on an object, the amount of energy it has changes. Energy is the quantity that measures the ability to cause change.