# GENERAL KNOWLEDGE

## GK

### GENERAL SCIENCE

 Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
As a roller coaster goes downhill
 A kinetic energy is converted into potential energy. B potential energy is converted into kinetic energy. C electrical energy is converted into potential energy. D potential energy is converted into electrical energy.
Explanation:

Detailed explanation-1: -Kinetic energy-the energy of motion-is dependent upon the mass of the object and the speed of the object. The train of coaster cars speeds up as they lose height. Thus, their original potential energy (due to their large height) is transformed into kinetic energy (revealed by their high speeds).

Detailed explanation-2: -The movement of a roller coaster is accomplished by the conversion of potential energy to kinetic energy. The roller coaster cars gain potential energy as they are pulled to the top of the first hill. As the cars descend the potential energy is converted to kinetic energy.

Detailed explanation-3: -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.

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