What is the difference between energy and work done?

Fill in the blank with a suitable word:

A moving object possesses _____ (kinetic/potential) energy.

The point of minimum kinetic energy in case of an oscillating pendulum is _____ (extreme/ mean) position.

The commercial unit of energy is _____($\mathrm{J}/ \mathrm{kWh}/ \mathrm{Wh}/ \mathrm{kWs}$).

$1 \mathrm{hp}=$_____ $\left(758/746\right)$ $\mathrm{watts}$.

$1 \mathrm{W} \mathrm{s} =$ _____ $\mathrm{J}$. $$(Choose from $1,10,100$)