How can an object travel 6 meters if it ends up at -2 on the number line?)

 Distance is a scalar quantity and direction is not applicable.  We can use graphs to depict an object's change in position over time.  Create a large number line in the classroom by taping index cards on the floor or wall 1 meter apart.

Explanation: I really hope that was helpful.

it is the second option.

it becomes positively charged by charging it