3. Part 3: Narrative description for energy transfers Kinetic energy transforms into potential energy when the cart move from valley to peak. The cart loses speed as it goes up on the peak on the track. Total energy can't be more than it was at the top of the peak. At the bottom of the track. potential energy converts into kinetic energy once again which makes the cart go faster if it stays at the bottom. The friction is found in roller coasters, the friction takes away energy provided by the coaster. Friction in a roller coaster is caused by the cartwheels rubbing against the track. In this scenario, the conservation of energy principles stay constant. 5. Part 5: Narrative for energy transfers that occur as a cart inelastically collides with an object of equal mass at rest. At the top of the second peak, the cart 1 has a high potential energy, while its kinetic energy is at 0. While the cart 1 moves down the track to the bottom, the potential energy decreases as it is converted into kinetic energy. At the base of the track, and right before impact, the cart 1's kinetic energy is at its highest, and with potential energy still at D. As the cart 1 collides with cart 2, the cart 1's kinetic energy decreases. This is due to the inelastic collision. Some of the kinetic energy of the system is being converted into internal energy. Although kinetic energy within the system is less than the kinetic energy before the collision, the law of conservation of energy is still being followed due to the energy being converted into another form. T. Narrative for the energy transfers that occur as the cart is brought to a stop As the carts reaches a stopping point: the kinetic energy of the system gradually decreases until the kinetic energy is at [1. Due to the friction= the kinetic energy is instead converted to heat energy. This heat energy is then transferred onto the rails of the track as the carts comes to a complete stop. Although the kinetic energy of the carts systems reached U, the law of conservation of energy is still followed due to the energy being converted into heat energy