This week is another "play around with it" lab instead of focusing on collecting data. Please go to this simulation and just start fiddling around with it. There's not much to it so I think you'll see the idea fairly quickly. Be sure to turn on the pie chart and/or bar graph to see what you're supposed to be learning here. The assignment is to answer the following questions. 1. If there is no friction, will the skater always return to her starting height, regardless of the track shape? Explain why or why not. 2. With no friction, how does the mass of the skater affect her speed? You can vary her mass while she's moving, or you can just restart the same experiment with a different mass to find out. Explain briefly. 3. Check to see if her mass matters when friction is turned on. Can you explain why this happens? If you turn on either the pie chart or bar graph, you'll see that the three forms of energy tracked in this lab are kinetic, potential, and thermal. 4. Kinetic is the energy of motion, and potential is the work done by gravity, but what about thermal energy