Energy Skate Park activity: Calculations with Conservation of Mechanical Energy using time graphs https://phet.colorado.edu/en/simulation/energy-skate-park Energy Skate Park Estimate a location for the Skater on a track. Calculate the speed or height of the Skater Predict energy distribution for tracks with and without friction. Without using the simulation, predict the answers to the following questions. Directions DOWNLOAD > EMBED 1. This graph below was made with the 50 kg Skater riding on the track shown. The Skater was initially positioned on the top left of the track. Without using the simulation, provide a prediction to the following questions. Energy Graph Position Time D Speed Slick to Track Kinetic . Energy (3) " XXXXXX XXXX VW Them . 4250 Friction Total Time (5) Gravity 25 0 Earth Y D Grid O Normal Reference Heights . . Slow Restart Skitter Energy Skate Park PHET : Energy Graph Position Time 2500 Kinetic . 2 Potential . 1250 XXXXXXXXXX Thermal . 1250 ini Total .2500 10 12 14 16 18 20 Time (s) 2. Predict the answers to the following questions assuming the same Skater and track setup from #1 but the Friction slider is set to 'Lots' a) Sketch a prediction of what the KE and PE graph might look like between 0 and 12 seconds b) Predict how you believe the skater's position will be affected (both horizontal and vertical). c) Predict how you think the skater's speed on the track will be affected? 3. Using the simulation respond to the following questions from #3. Be sure to move the Friction slider to 'Lots' a) Provide a screenshot of the Skater and graph from 0 to 12 seconds. b) Discuss how the skater's position is affected (both horizontal and vertical). c) Discuss how the skater's speed is affected