Question 45

Kinetic energy is converted into gravitational potential energy.

As the ball rolls up the ramp, its kinetic energy, which is the energy of motion, is transformed into gravitational potential energy, the energy stored due to its height above the ground.

A) Elastic potential energy is converted into thermal energy.

This option is incorrect because elastic potential energy refers to energy stored in elastic materials, such as springs. The scenario described involves a ball rolling up a ramp, which does not involve elastic materials or the conversion into thermal energy.

B) Kinetic energy is converted into gravitational potential energy.

This option is correct as it accurately describes the energy transformation occurring when the ball moves upward along the ramp. The kinetic energy of the ball decreases as it ascends, while its gravitational potential energy increases due to the elevation gained.

C) Gravitational potential energy is converted into kinetic energy.

This option is incorrect because it describes the process that occurs when an object rolls down a ramp, not when it rolls up. In the context of the ball rolling up, gravitational potential energy is not being converted into kinetic energy.

D) Chemical potential energy is converted into gravitational potential energy.

This option is incorrect as it involves chemical potential energy, which is related to the energy stored in chemical bonds. The energy transformations in this scenario do not involve chemical reactions or energy from chemical bonds.

Conclusion

The correct answer, B, is clearly the only option that accurately reflects the energy conversion process when a ball rolls up a ramp, highlighting the transition from kinetic energy to gravitational potential energy. All other options either misrepresent the types of energy involved or describe unrelated processes, thereby reinforcing the importance of understanding energy transformations in motion.