PHET Energy Skate Park Simulation .Consider this equation: gravitational potential energy = mgh. Which of those variables is changing as the skater moves up and down the track?

h - height

Explanation:

gravitational potential energy = m * g * h

m stands for mass. Mass doesn't change in physics

g stands for gravitational acceleration. It is a constant.

h stands for height. When the skater moves up and down the track the height from the ground changes. Therefore this variable does change.