1. Potential Energy to Kinetic Energy: At the beginning of the ride, the roller coaster is typically pulled to the top of a hill or incline. At this point, the coaster has high potential energy due to its position relative to the ground. As the coaster is released, its potential energy is converted into kinetic energy, causing it to accelerate down the track.
2. Kinetic Energy to Potential Energy: As the roller coaster climbs the subsequent hills or inclines on the track, its kinetic energy is converted back into potential energy. This occurs because the coaster is moving slower at these points, and its height above the ground increases.
3. Kinetic Energy to Heat and Sound: Throughout the ride, some of the roller coaster's kinetic energy is converted into heat and sound due to friction between the coaster wheels and the track, as well as air resistance. This energy dissipation contributes to the coaster's gradual deceleration.
4. Kinetic Energy to Gravitational Potential Energy: When the roller coaster reaches the end of the track and comes to a stop, its remaining kinetic energy is converted into gravitational potential energy. This is because the coaster's position relative to the ground has changed, and it now has a lower height compared to when it started.
5. Gravitational Potential Energy to Heat: As the roller coaster sits at the end of the track, its gravitational potential energy is slowly dissipated as heat due to friction and other factors. This process may be aided by braking mechanisms that further slow down and eventually bring the coaster to a complete stop.
Overall, the energy transformations in a roller coaster involve the continuous conversion of potential energy to kinetic energy and back, with a gradual loss of energy through friction, heat, and sound until the coaster comes to a stop.