1. If you were to plot a graph of your ball's gravitational potential energy versus its kinetic energy as it rolled down the track, what would be the shape of the curve? Sketch the curve in the blank graph below.

the ball rolls down the track, its gravitational potential energy decreases while its kinetic energy increases. The sum of the gravitational potential energy and kinetic energy remains constant, assuming no energy is lost due to friction or other factors. Therefore, the curve would be a straight line with a negative slope, indicating that as one form of energy increases, the other decreases.