Question

2. In the absence of friction, does the total amount of energy (potential energy +

kinetic energy) change as the skater moves down the ramp? Why or why not?

Answer 1

Yes, the energy changes as the skater moves down the ramp. Potential energy begins converting into kinetic energy when the skater moves, and kinetic energy converts back to potential energy at the bottom of the ramp and the very top of the ramp.