Complete the statement. Assume that Pedro's mass did not change.
The gravitational potential energy stored between Pedro and Earth () as he hiked toward the summit.

 - stayed the same
 - increased
 - decreased
Think about how the distance between Pedro and the center of Earth changed.
The summit of the mountain was higher than the point where Pedro started hiking. As he hiked toward the summit, the distance between Pedro and the center of Earth increased. So, the gravitational potential energy stored between Pedro and Earth increased as he hiked toward the summit.