Question

which statement best defines energy?
energy is the force applied over a distance.
energy is the ability to do work.
energy is the rate at which work is done.
energy is the motion of objects.

Explanation:

• Force applied over a distance is work ($W = F\times d$), not energy.
• Rate at which work is done is power ($P=\frac{W}{t}$), not energy.
• Motion of objects is related to kinetic energy (a form of energy), but it's too narrow. Energy encompasses many forms (potential, thermal, etc.) and is best defined as the ability to do work.

Answer:

Energy is the ability to do work.