Energy used - potential energy, mechanical energy, sound energy
Energy conversion -The chemical energy we got from our breakfast and lunch was used to crank the wheel on the shaft, and the cranking part was mechanical energy.
Meeting a human need or want - This meets a want because it reduces the amount of energy needed to move the box by 12 inches and it is not a need because it is not a necessity and there are different ways to achieve the same results.
Our team was partially successful, and we got partial credit because it moved a few inches. Nothing affected our results with energy conversion, but the second row of gears were spinning the opposite way of the first gears, causing friction.
Improvements for next time
Next time, we should fix the backward gear problem, and probably add fenders on the side to keep the box from sliding off. Also, we should add more gears so that it travels a longer distance!