# Newton (unit)

**kNnewtonNnewtonsMNkilonewtonpiconewtonmeganewtonmeganewtonsmillinewton**

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

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### International System of Units

**SISI unitsSI unit**

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

For example, the SI unit of force is the newton (N), the SI unit of pressure is the pascal (Pa)—and the pascal can be defined as one newton per square metre (N/m 2 ).

### SI derived unit

**derived unitderived unitsJ/kg**

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

### Gravity of Earth

**Earth's gravityggravity**

At average gravity on Earth (conventionally, g

In SI units this acceleration is measured in metres per second squared (in symbols, m/s 2 or m·s −2 ) or equivalently in newtons per kilogram (N/kg or N·kg −1 ).

### General Conference on Weights and Measures

**CGPMConférence Générale des Poids et MesuresCGPM conference**

In 1946, Conférence Générale des Poids et Mesures (CGPM) Resolution 2 standardized the unit of force in the MKS system of units to be the amount needed to accelerate 1 kilogram of mass at the rate of 1 metre per second squared.

### Mass

**inertial massgravitational massweight**

where the proportionality constant, m, represents the mass of the object undergoing an acceleration, a.

Conceptually, "mass" (measured in kilograms) refers to an intrinsic property of an object, whereas "weight" (measured in newtons) measures an object's resistance to deviating from its natural course of free fall, which can be influenced by the nearby gravitational field.

### Kilogram

**kgmgmilligram**

In 1946, Conférence Générale des Poids et Mesures (CGPM) Resolution 2 standardized the unit of force in the MKS system of units to be the amount needed to accelerate 1 kilogram of mass at the rate of 1 metre per second squared. One newton is the force needed to accelerate one kilogram of mass at the rate of one metre per second squared in the direction of the applied force.

Three other base units (cd, A, mol) and 17 derived units (N, Pa, J, W, C, V, F, Ω, S, Wb, T, H, kat, Gy, Sv, lm, lx) in the SI system were defined in relation to the kilogram, and thus its stability was important.

### Metre per second squared

**m/s²m/s 2 meters per second squared**

In 1946, Conférence Générale des Poids et Mesures (CGPM) Resolution 2 standardized the unit of force in the MKS system of units to be the amount needed to accelerate 1 kilogram of mass at the rate of 1 metre per second squared. One newton is the force needed to accelerate one kilogram of mass at the rate of one metre per second squared in the direction of the applied force.

The unit of force is the newton (N), and mass has the SI unit kilogram (kg).

### Thrust

**thrustingexcess thrustlbf**

1000 N. For example, the tractive effort of a Class Y steam train locomotive and the thrust of an F100 jet engine are both around 130 kN.

Force, and thus thrust, is measured using the International System of Units (SI) in newtons (symbol: N), and represents the amount needed to accelerate 1 kilogram of mass at the rate of 1 meter per second per second.

### Tension (physics)

**tensiontensiletensile force**

In physics, tension, as a transmitted force, as an action-reaction pair of forces, or as a restoring force, may be a force and has the units of force measured in newtons (or sometimes pounds-force).

### Joule

**JkJMJ**

It is equal to the energy transferred to (or work done on) an object when a force of one newton acts on that object in the direction of the force's motion through a distance of one metre (1 newton metre or N⋅m).

### Energy

**energy transferenergiestotal energy**

The SI unit of energy is the joule, which is the energy transferred to an object by the work of moving it a distance of 1 metre against a force of 1 newton.

### Rocket engine

**rocket motorrocketthrusters**

Rocket technology can combine very high thrust (meganewtons), very high exhaust speeds (around 10 times the speed of sound in air at sea level) and very high thrust/weight ratios (>100) simultaneously as well as being able to operate outside the atmosphere, and while permitting the use of low pressure and hence lightweight tanks and structure.

### Pressure

**water pressurenegative pressurefluid pressure**

Some of these derive from a unit of force divided by a unit of area; the SI unit of pressure, the pascal (Pa), for example, is one newton per square metre (N/m 2 ); similarly, the pound-force per square inch (psi) is the traditional unit of pressure in the imperial and US customary systems.

### Pascal (unit)

**hPaMPakPa**

The unit, named after Blaise Pascal, is defined as one newton per square metre.

### Newton metre

**N·mNmnewton-metre**

One newton metre is equal to the torque resulting from a force of one newton applied perpendicularly to the end of a moment arm that is one metre long.

### Kilogram-force

**kgfkilograms-forcekp**

The SI unit of force is the newton.

### Torque

**moment armmomentlever arm**

A force of three newtons applied two metres from the fulcrum, for example, exerts the same torque as a force of one newton applied six metres from the fulcrum.

### Force gauge

**NmForce gauge and Force Sensor**

Test units of force measurements are most commonly newtons or pounds.

### Isaac Newton

**NewtonSir Isaac NewtonNewtonian**

It is named after Isaac Newton in recognition of his work on classical mechanics, specifically Newton's second law of motion.

### Classical mechanics

**Newtonian mechanicsNewtonian physicsclassical**

It is named after Isaac Newton in recognition of his work on classical mechanics, specifically Newton's second law of motion.

### Newton's laws of motion

**Newton's second lawNewton's third lawNewton's second law of motion**

It is named after Isaac Newton in recognition of his work on classical mechanics, specifically Newton's second law of motion.