Read the text about a person in motion. Percy was riding his bike along a flat road. When he saw a hill ahead, he began
pedaling faster. To start climbing the hill, he switched his bike into a lower gear.
The ride was difficult, so he stopped to catch his breath at the top of the hill.
When was the most gravitational potential energy stored between Percy and Earth? Assume
that Percy's mass did not change.
when he saw the hill and started pedaling faster
when he switched into a lower gear so he could climb
the hill
when he stopped to catch his breath