28 relations: Centimetre–gram–second system of units, Earth, English Engineering units, Foot-pound (energy), Foot–pound–second system, Force, Gravity of Earth, International System of Units, Kilogram-force, Kip (unit), Mass, Mass in general relativity, Mass in special relativity, Mass versus weight, National Institute of Standards and Technology, Newton (unit), Newton's laws of motion, Pound (mass), Pound-foot (torque), Poundal, Pounds per square inch, Pressure, Slug (unit), Standard gravity, System of measurement, Ton-force, Unit of measurement, Weight.

## Centimetre–gram–second system of units

The centimetre–gram–second system of units (abbreviated CGS or cgs) is a variant of the metric system based on the centimetre as the unit of length, the gram as the unit of mass, and the second as the unit of time.

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## Earth

Earth is the third planet from the Sun and the only astronomical object known to harbor life.

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## English Engineering units

Some fields of engineering in the United States use a system of measurement of physical quantities known as the English Engineering units.

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## Foot-pound (energy)

The foot pound-force (symbol: ft⋅lbf or ft⋅lb) is a unit of work or energy in the Engineering and Gravitational Systems in United States customary and imperial units of measure.

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## Foot–pound–second system

The foot–pound–second system or FPS system is a system of units built on three fundamental units: the foot for length, the (avoirdupois) pound for either mass or force (see below), and the second for time.

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## Force

In physics, a force is any interaction that, when unopposed, will change the motion of an object.

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## Gravity of Earth

The gravity of Earth, which is denoted by, refers to the acceleration that is imparted to objects due to the distribution of mass within Earth.

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## International System of Units

The International System of Units (SI, abbreviated from the French Système international (d'unités)) is the modern form of the metric system, and is the most widely used system of measurement.

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## Kilogram-force

The kilogram-force (kgf or kgF), or kilopond (kp, from Latin pondus meaning weight), is a gravitational metric unit of force.

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## Kip (unit)

A kip is a US customary unit of force.

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## Mass

Mass is both a property of a physical body and a measure of its resistance to acceleration (a change in its state of motion) when a net force is applied.

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## Mass in general relativity

The concept of mass in general relativity (GR) is more complex than the concept of mass in special relativity.

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## Mass in special relativity

Mass in special relativity incorporates the general understandings from the laws of motion of special relativity along with its concept of mass–energy equivalence.

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## Mass versus weight

In common usage, the mass of an object is often referred to as its weight, though these are in fact different concepts and quantities.

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## National Institute of Standards and Technology

The National Institute of Standards and Technology (NIST) is one of the oldest physical science laboratories in the United States.

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## Newton (unit)

The newton (symbol: N) is the International System of Units (SI) derived unit of force.

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## Newton's laws of motion

Newton's laws of motion are three physical laws that, together, laid the foundation for classical mechanics.

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## Pound (mass)

The pound or pound-mass is a unit of mass used in the imperial, United States customary and other systems of measurement.

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## Pound-foot (torque)

A pound-foot (lbf⋅ft or lb⋅ft) is a unit of torque (a pseudovector).

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## Poundal

The poundal (symbol: pdl) is a unit of force that is part of the foot–pound–second system of units, in Imperial units introduced in 1877, and is from the specialized subsystem of English absolute (a coherent system).

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## Pounds per square inch

The pound per square inch or, more accurately, pound-force per square inch (symbol: lbf/in2; abbreviation: psi) is a unit of pressure or of stress based on avoirdupois units.

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## Pressure

Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.

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## Slug (unit)

The slug is a derived unit of mass in the weight-based system of measures, most notably within the British Imperial measurement system and in the United States customary measures system.

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## Standard gravity

The standard acceleration due to gravity (or standard acceleration of free fall), sometimes abbreviated as standard gravity, usually denoted by or, is the nominal gravitational acceleration of an object in a vacuum near the surface of the Earth.

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## System of measurement

A system of measurement is a collection of units of measurement and rules relating them to each other.

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## Ton-force

A ton-force is one of various units of force defined as the weight of one ton due to standard gravity.

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## Unit of measurement

A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity.

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## Weight

In science and engineering, the weight of an object is related to the amount of force acting on the object, either due to gravity or to a reaction force that holds it in place.

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## Redirects here:

Klbf, Lb force, Lbf, Ounce-force, Pound (Force), Pound Force, Pound force, Pound of force, Pound-Force, Pound-force, Pounds force, Pounds-force.