E-potential / E-potential-energy

Sigh, I haven't updated SciLearn for a while. Homework has been keeping me busy recently. Still, I decided to publish a short post about electrostatics.

Okay, today I encountered something that I never realized/thought of properly. What is the difference between electric potential and electric potential energy?

The main difference can be easily found by analyzing the units:

• electric potential is a quantity in volts or - equivalently - joules per coulomb.
  
• electric potential energy is energy, in joules.

The difference is just:

electric potential is electric potential energy divided by the charge of the test particle.

Ain't that simple?

You can draw a similar relationship between electric field (NC^-1) and electric force field (N) (since they are simply gradients of the electric potential and electric potential energy respectively).

Note: all of these also apply to gravitation.