Conservation of Energy Lab: Name: Roller Coaster Purpose: For this lab, potential energy and kinetic energy will be calculated at different locations on a roller coaster. From the calculations, the law of conservation of energy will be analyzed. Procedure: Lab simulations site: https:/phet.colorado.edu/en/simulations/energy-skate. park donot lab: energy skate park) 1. Go to the lab site and click on "the playground." 2. Click on the speed. Click off the stick to path. Friction is on none. Gravity should be on Earth. 3. Choose your mass and person (or animal) 4. Build a roller coast using the track at the bottom. Use as many as you need to create a working roller coaster. a. The roller coaster should go down to the bottom. b. The roller coaster should include one loop. C. The roller coaster should end at the bottom. 5. Run your coaster. Your person should not "leap" off the track at any time. Your speed at the end should be between 9-10 m/s. . Adjust your coaster until you meet the criteria in #4 & 5. 7. Once you have a successful trial, screenshot it. 8. Take the following measurement to fill in the data/calculation tables. Roller Coaster: Screen shot. Data Collection: Location of Coaster Height (m) Speed (m/s) Beginning of the coater (top) Bottom of the loop Top of the loop End of the coaster (bottom Potential energy = mel Kinetic energy = 12 mv Mechanical energy = PE + KE Calculation: Location Potential energy (J) Kinetic energy (J) Mechanical Energy (J) Top of coaster Bottom of loop Top of loop End of coaster (bottom) Conclusion/Analysis: 1. What did you have to adjust to make your coaster go over the loop without falling off? 2. What did you have to adjust to make your coaster end between 9-10 m/s? 3. What was the KE at the beginning of the coaster? Why was this so? 4. What was your PE at the end of the coaster? Why was this so? 5. What did you notice about the mechanical energy? Was it conserved? If not, why was it not? Where did it go