Newton: Difference between revisions
Jump to navigation
Jump to search
imported>Christian Kleineidam No edit summary |
Mark Widmer (talk | contribs) (→Related units: Changed links: "power" to "Power_(physics)", "energy" to "Energy_(science)") |
||
| (7 intermediate revisions by 4 users not shown) | |||
| Line 1: | Line 1: | ||
{{subpages}} | {{subpages}} | ||
{{TOC|right}} | |||
The '''newton''' is the [[SI]] unit of [[force]], and is the force | The '''newton''' is the [[International System of Units|SI]] unit of [[force]], and is the force that will accelerate 1 [[kilogram]] one [[Metre (unit)|metre]] per [[second]] per second. The symbol of the newton in SI is '''N'''. The newton is also the unit of [[weight]]. | ||
The newton is named for [[Isaac Newton]] (1643 - 1727), who developed the laws of motion in classical mechanics. | The newton is named for [[Isaac Newton]] (1643 - 1727), who developed the laws of motion in classical mechanics. | ||
The newton is a derived unit in the SI | The newton is a derived unit in the SI: | ||
<math>N = kg\cdot m\cdot s^{-2} = \frac{kg\cdot m}{s^2}</math>. | <math>N = kg\cdot m\cdot s^{-2} = \frac{kg\cdot m}{s^2}</math>. | ||
==Related units== | ==Related units== | ||
*The [[joule]] (J) is the SI unit of [[energy]], and is the | *The [[joule]] (J) is the SI unit of [[Energy_(science)|energy]], and is the [[Work_(physics)|work]] done by a one-newton force acting over one meter. | ||
<math>N = \frac{J}{m}</math> | <math>N = \frac{J}{m}</math> | ||
*The [[watt]] (W) is the SI unit of [[power]], and is the power | *The [[watt]] (W) is the SI unit of [[Power_(physics)|power]], and is the power that gives rise to one joule in one second. | ||
<math>N = \frac{W\cdot s}{m}</math> | <math>N = \frac{W\cdot s}{m}</math> | ||
*The [[pascal]] (Pa) is the SI unit of [[pressure]], and is equal to one newton acting over an area of one square metre. | *The [[pascal]] (Pa) is the SI unit of [[pressure]], and is equal to a one-newton force acting over an area of one square metre. | ||
<math>N = Pa \cdot m^2</math> | <math>N = Pa \cdot m^2</math> | ||
*The newton-metre (N·m) is the SI unit of [[torque]], and is the amount of torque generated by | *The newton-metre (N·m) is the SI unit of [[torque]], and is the amount of torque generated by one-newton force acting at a radius of one metre. There is no distinct name for this unit. | ||
==Equivalent units of force== | |||
*1 N ≡ 1×10<sup>5</sup> [[dyne]] (symbol: '''dyn''') | |||
*1 N ≈ 0.101972 [[kilogram-force]] (symbol:'''kgf''') | |||
*1 N ≈ 0.101972 [[kilopond]] (symbol: '''kp''')<ref name=kp group=note/> | |||
*1 N ≡ 1×10<sup>-3</sup> [[sthène]] (symbol: '''sn''') | |||
*1 N ≈ 0.224809 [[pound-force]] (symbol: '''lbf''') | |||
*1 N ≈ 2.24809×10<sup>-4</sup> [[kip]] (symbol: '''kip''')<ref name=kip group=note/> | |||
*1 N ≈ 7.233014 [[poundal]] (symbol: '''pdl''') | |||
==Practical use== | ==Practical use== | ||
| Line 22: | Line 34: | ||
The drive train of a 2006 Chevrolet Corvette Z06 can produce approximately 10.3 kN while accelerating the car from 0 to 26.8 m/s (60 miles per hour). | The drive train of a 2006 Chevrolet Corvette Z06 can produce approximately 10.3 kN while accelerating the car from 0 to 26.8 m/s (60 miles per hour). | ||
==Notes== | |||
{{reflist|group=note|refs= | |||
<ref name=kp group=note> Another name for a kilogram-force. Not to be confused with "kilopounds", meaning 1,000 pounds of mass.</ref> | |||
<ref name=kip group=note>A non-SI unit of force equal to 1,000 pound-force.</ref> | |||
}} | |||
Revision as of 13:46, 14 August 2022
The newton is the SI unit of force, and is the force that will accelerate 1 kilogram one metre per second per second. The symbol of the newton in SI is N. The newton is also the unit of weight.
The newton is named for Isaac Newton (1643 - 1727), who developed the laws of motion in classical mechanics.
The newton is a derived unit in the SI:
.
Related units
- The joule (J) is the SI unit of energy, and is the work done by a one-newton force acting over one meter.
- The pascal (Pa) is the SI unit of pressure, and is equal to a one-newton force acting over an area of one square metre.
- The newton-metre (N·m) is the SI unit of torque, and is the amount of torque generated by one-newton force acting at a radius of one metre. There is no distinct name for this unit.
Equivalent units of force
- 1 N ≡ 1×105 dyne (symbol: dyn)
- 1 N ≈ 0.101972 kilogram-force (symbol:kgf)
- 1 N ≈ 0.101972 kilopond (symbol: kp)[note 1]
- 1 N ≡ 1×10-3 sthène (symbol: sn)
- 1 N ≈ 0.224809 pound-force (symbol: lbf)
- 1 N ≈ 2.24809×10-4 kip (symbol: kip)[note 2]
- 1 N ≈ 7.233014 poundal (symbol: pdl)
Practical use
A kilogram mass has a weight of about 9.81 N in earth's surface gravity. A healthy adult human subject to earth's surface gravity typically weighs between 450 N and 900 N.
The drive train of a 2006 Chevrolet Corvette Z06 can produce approximately 10.3 kN while accelerating the car from 0 to 26.8 m/s (60 miles per hour).