1n

1N most commonly refers to the newton, the SI unit of force. A newton is the amount of force required to accelerate a mass of one kilogram by one meter per second squared. The symbol for the unit is N.

Definition and value: 1 N equals 1 kg·m/s^2. In everyday terms, on Earth a mass of about 0.102 kilograms weighs approximately 1 newton (weight = mass × gravity, with g ≈ 9.81 m/s^2). In customary units, 1 N is about 0.2248 pound-force.

History and usage: The unit is named after Isaac Newton and has been part of the SI system since its adoption. It is used to measure and quantify forces in physics, engineering, and related fields, from laboratory experiments to structural design.

Other uses: In electronics, 1N is a common prefix in component part numbers for diodes and rectifiers, such as 1N4148 and 1N4001; the digits identify the specific device. The prefix is not a unit but a model designation used by manufacturers.

Disambiguation: In some contexts 1N may denote other concepts, such as a sequence of natural numbers starting at one, or branding in various fields. However, the most widely recognized meaning is the unit of force.