Can you answer demonstration 1

INTERACTIVE LECTURE DEMONSTRATION PREDICTION SHEETKINETIC AND Porran Directions: Write your name at the top_to recoriyomresence and_p_articipation. ' _ prediction on this sheet before making any observations. You may be asked to send -_' Demonstration 1: A skateboarder is at the top of a curved ramp shown on the right. Assume that friction is so small that it may be neglected. She glides down the ramp to the bottom. Indicate with a letter from A to F on the diagram on the right the positions where her A. kinetic energy is maximum, B. kinetic energy is minimum, C. potential energy is maximum, D. potential energy is minimum, E. total energy is maximum, F. total energy is minimum. Only after you have made your predictions, open the Energy Skate Park: Basics simulation: httpgl/phet.colorado.edu/sims/html/eneggy-skate-parkbasics/latest/energy-skate_-park basics en.html Select the Friction simulation. Then select the correct ramp, set Friction to None, and select Bar Graph. Drag the skateboarder to the top of the ramp and observe the energy bars as she skates down. (You can repeat the motion by clicking on the skateboarder in the green box at the top.) Indicate your observations on the right in a different color ink. Compare your observations to your predictions and explain any differences. Is kinetic energy conserved? Is potential energy conserved? Is total energy conserved? Demonstration 2: The skateboarder now goes on a u-shaped ramp. Again, friction is so small that it may be neglected She glides down the ramp and then back up the other side. Indicate with an X on the diagram the maximum height she reaches on the way back up. Indicate with a letter from A to F on the diagram on the right the positions when her A. kinetic energy is maximum, B. kinetic energy is minimum, C. potential energy is maximum, D. potential energy is minimum, E. total energy is maximum, F. total energy is minimum. Only after you have made your predictions, use the Energy Skate Park: Basics simulation to make your observations. Select the correct ramp. Be sure that Friction is still set to None. - _Indicate your observations on the right in a different color ink. Compare your observations to your predictions and explain any differences. Is kinetic energy conserved? Is potential energy conserved? Is total energy conserved