EVERYDAY SCIENCE

Detailed explanation-1: -Gravitational potential energy is greatest at the highest point of a roller coaster and least at the lowest point.

Detailed explanation-2: -At the highest point on the roller coaster (assuming it has no velocity), the object has a maximum quantity of gravitational potential energy and no kinetic energy. As the object begins moving down to the bottom, its gravitational potential energy begins to decrease and the kinetic energy begins to increase.

Detailed explanation-3: -Potential energy is higher when it is at the first point because it lacks an appropriate operating force and is being stored. At the fourth point, it possesses a significant running force and kinetic energy. Hence, point 1 has more potential energy than point 4, and vice versa.

Detailed explanation-4: -While going down the hill, the roller coaster picks up more and more speed. The potential energy the cart had at the top of the hill transforms into kinetic energy at the bottom of the hill. Because you are moving so fast, you have a very high kinetic energy, and a very low potential energy.

Detailed explanation-5: -The answer is “position A” because it is the highest point in the coaster. Potential Energy is “stored energy.” It is energy that is ready to be converted or released as another type of energy. We most often think of potential energy as gravitational potential energy.