Complete the statement. Assume that the robin's mass did not change.
The gravitational potential energy stored between the robin and Earth () as the robin flew to the tree branch.
A: increased
B: decreased
C: stayed the same
Think about how the distance between the robin and the center of Earth changed.
The tree branch is higher than the land below the tree. As the robin flew toward the tree branch, the distance between the robin and the center of Earth increased. So, the gravitational potential energy stored between the robin and Earth increased as the robin flew to the tree branch.