A coaster car rolls along a friction-free track. KE PE Ignore effects of friction and air resistance. A B Which location most closely matches the following energy bar chart? KE PE O. O B O cA coaster car rolls along a friction-free track. Ignore effects of friction and air resistance. KE PE . . . B Which location most closely matches the following energy bar chart? KE PE OA B OOA pendulum bob swings along its characteristic arc as shown. Ignore effects of friction and air resistance. A C B KE PE ... Which location most closely matches the following energy bar chart? KE PE ooo BA toy car is propelled from a spring-loaded launcher and slides along a track until it collides with a barrier and is brought to a stop (C). Consider effects of friction, air resistance, and collisions. A B KEY: = Kinetic = Grav. Potential = Dissipated Which location most closely matches the following energy bar chart? O A B CA toy car rolls along a track and up a hill to its highest point (C). Consider effects of friction, air resistance, and collisions. A C B KEY: = Kinetic = Grav. Potential = Dissipated Which location most closely matches the following energy bar chart? OA O O cA spring-loaded launcher shoots a ball at an angle. It bounces several times before eventually stopping (C). Consider effects of friction, air resistance, and collisions. A B C KEY: = Kinetic = Grav. Potential = Dissipated Which location most closely matches the following energy bar chart? O A OB O cA skater moves down a friction-free track with many turns and hilis. Which of the following is TRUE? 0 The sum of the kinetic and potential energies remains the same throughout his motion. 0 The kinetic energy remains the same throughout his motion. O The potential energy remains the same throughout his motion. O The amount of both kinetic and potential energy remains the same throughout his motion. When friction is considered, which of the following statements is NOT true about a skater's track? 0 Thermal energy gradually decreases. O Potential energy gradually decreases. O Kinetic energy gradually decreases. What happens when the mass of an object (such as a skater) increases? 0 Kinetic energy increases. 0 Potential energy increases. 0 All of these. C) Total energy increases. When friction is considered in the Energy Skate Park simulation, is it a violation of the Law of Conservation of Energy? Explain. o No, because the total of all forms of energy remains the same. 0 Yes, because all types of energy decrease over time. O No, because the total of kinetic energy and potential energy remains the same. O Yes, because the Law of Conservation Energy only applies to ideal (friction-free) situations. Changes in the skater's gravitational potential energy directly correlate with changes in the skater's height . Changes in the skater's kinetic energy directly correlate with changes in the