Before completing the "Energy Skate Park: Basics" simulation below, watch the following video: youtu.be/ZGOfeJGBxBc?hd=1
Questions:

• Based on the "Energy Skate Park: Basics" simulation, when does the kinetic energy change?
• Based on the "Energy Skate Park: Basics" simulation, when does the potential energy change?
• Based on the simulation in 4.1 ("How Do Hot Packs and Cold Packs Change Temperature?"), when would the soccer player and/or soccer ball have potential energy, and when would the soccer player and/or soccer ball have kinetic energy?