Final answer:
True - An external force is defined as a force generated outside the system of interest that acts on an object inside the system.
Step-by-step explanation:
An external force is defined as a force generated outside the system of interest that acts on an object inside the system. This means that it does not come from within the system itself, but rather from an external source. So, the statement 'True - An external force is defined as a force generated outside the system of interest that acts on an object inside the system.' is correct.
For example, if you push a box across the floor, the force you applied to the box is an external force.