Isis is playing around with two magnetic toy vehicles. She has two identical magnetic vehicles (purple and
green) on different sides of a center magnet that
cannot move. Aniyah challenges her to move one
vehicle one space to the left or the right in order to get
the largest increase in potential energy. That means Isis
can move the purple car to point A or point B, or she
can move the green car to point C or point D.
Explain which movement Isis should make (which car
and which point), and why that movement will result in
the largest increase in potential energy. Describe the
magnetic force that will act on the vehicle he moves.