1. Why do bumper cars have a rubber bumper around each of the cars? Explain. 2. How do your hands create sound when you clap? What two objects are colliding in this example? Are bumper car collisions elastic or inelastic? Defend your answer. Look at the figure below with the toy cars on a ramp and answer the following questions. 3. Which car has more potential energy? Why? Predict the movement of the cars during the collision.