What is the SI unit of force, and who is it named after?

The SI unit of force is the newton (N), named after the English scientist Sir Isaac Newton, who formulated the laws of motion.

One newton is the force needed to accelerate a mass of one kilogram by one metre per second squared. Other common units: joule (energy and work), watt (power), pascal (pressure), ampere (electric current), volt (potential difference) and ohm (resistance).