Directions:ONLY use the "Intro" in the simulation to investigate energy in the skate park. Experiment with different tracks, and friction values. Use different tracks on the "Introduction" and "Friction" pages.

Link to the simulation: https://phet.colorado.edu/sims/html/energy-skate-park/latest/energy-skate-park_en.html

1. Describe the system represented by the bar graph and pie chart. Explain your reasoning

System description

Objects in system	Reasoning

1. Investigate the meaning of "total energy".

"Total energy" observations from bar graph

At different positions	In relationship to other energy forms

"Total energy" observations from pie chart

At different positions	In relationship to other energy forms

1. Find a way to increase the "total energy". Draw diagrams of the bar graph and pie chart before and after you increase the "total energy".

Energy diagrams

	Before increasing the total energy	After increasing the total energy
Bar graph
Pie chart