https://phet.colorado.edu/sims/html/energy-skate-park/latest/energy-skate-park_all.html Move the person inside the pathway and then move the cable on blue dotes, through simple U-shaped, loop track, and wavy track pathways. Explain the energy type that are changing based on the location of the person and the different pathways. Try to do this with changing the speed and gravity, what can you see about the energy types