One volt is the potential difference (or electric potential) between two points in a circuit that will cause one ampere of current to flow when one joule of energy is used to move a charge of one coulomb between those points.
In simpler terms:
- **Voltage** is like the "push" that moves electric charges in a circuit.
- **1 volt** means that for every coulomb of charge (which is a specific quantity of electric charge), it takes 1 joule of energy to move that charge between two points.
In even simpler terms, you can think of voltage as the "pressure" that drives electric charges to flow, similar to how water pressure pushes water through a pipe.
So, 1 volt is the amount of "push" that makes 1 ampere of current flow through a circuit, if you have 1 joule of energy per coulomb of charge.