Question 37

Kinetic energy is converted into gravitational potential energy.

When a ball rolls up a ramp, it is moving against the force of gravity, which means its kinetic energy is being transformed into gravitational potential energy as it gains height.

A) Gravitational potential energy is converted into kinetic energy.

This option describes the opposite energy conversion that occurs when an object rolls down a ramp. In that scenario, gravitational potential energy is transformed into kinetic energy as the object loses height, making this option incorrect for the context of the question.

B) Elastic potential energy is converted into thermal energy.

This option does not apply to the scenario described, as there is no elastic potential energy involved when a ball rolls up a ramp. Therefore, this energy transformation is not relevant and is incorrect.

C) Kinetic energy is converted into gravitational potential energy.

This option correctly identifies the energy conversion taking place when a ball rolls up a ramp. As the ball moves upward, it slows down, indicating that its kinetic energy decreases while its gravitational potential energy increases.

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

This option is incorrect as it introduces chemical potential energy, which is not a factor in the scenario of a ball rolling up a ramp. The primary energy transformation involves kinetic and gravitational potential energies, making this choice irrelevant.

Conclusion

Option C is definitively correct as it accurately describes the energy conversion occurring when a ball rolls up a ramp. The other options either misrepresent the type of energy involved or describe incorrect processes, thereby failing to address the core concept of energy transformation in this context.