Question

Explain the difference between work and energy. Give an example where work is done on an object, but its kinetic energy does not change.

• A. Work is done only when a force moves an object, while energy is the capacity to do work.
• B. Work and energy are the same.
• C. Work does not involve force, while energy involves force.
• D. Energy is a type of work done on an object.

Hint:

When an object moves with constant velocity, the kinetic energy remains the same, and any work done is transformed into potential energy.

Answer 1

The Correct Option is A

Work is done when a force is applied to an object causing it to move. Work is a transfer of energy. Energy is the capacity of an object to do work, but it is not work itself. An example where work is done, but the kinetic energy doesn't change is when an object is lifted at constant velocity. The work done is converted into potential energy, and the kinetic energy remains constant.