Why Current is the name for the movement of electric charge (electrons) through a conductor. It is measured in amperes, where one ampere equals one coulomb of charge passing a point each second. Voltage is the electrical pressure that pushes the current, and resistance opposes it, related by Ohm's law E = I x R.
Watch out Voltage is the force or potential difference that causes electrons to move, not the movement itself; "amperes per second" and "volts per second" are rates of change, not standard quantities used here.
Water analogy: voltage is the pressure, current is the flow. Flow of electrons = current, measured in amperes.