Why would a box on a shelf have a higher potential energy than that of a box on a lower shelf?
A) The box on the higher shelf is heavier
B) The box on the lower shelf was placed there after the higher box.
C) The box on the higher shelf experiences less gravitational pull; with less gravitational pull comes more weight, thus more potential energy.
D) It took more work to move the box to the high shelf than to the low shelf
Answer: D
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