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力矩

File:Torque_animation.gif · Wikimedia Commons · See Wikimedia Commons

EntityQ48103· pop 81· linked from 2,894 articles

Also known as moment of force

作用力促使物体绕着转动轴或支点转动的趋向

AI overview

Torque is a twisting force that causes objects to rotate around an axis, similar to how a regular push or pull force causes objects to move in a straight line. It matters because many everyday tasks—like driving a screw with a screwdriver—depend on torque to work.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Physical quantity.name
Torque
Physical quantity.image
Torque animation.gif
Physical quantity.caption
Relationship between force F, torque τ, linear momentum p, and angular momentum L in a system which has rotation constrained to only one plane (forces and moments due to gravity and friction not considered)
Physical quantity.unit
N⋅m
Physical quantity.otherunits
pound-force-feet, lbf⋅inch, ozf⋅in
Physical quantity.symbols
\tau, M
Physical quantity.baseunits
kg⋅m2⋅s−2
Physical quantity.dimension
wikidata

via Wikipedia infobox

Research

37,652 papers

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Wikidata facts

Subclass of
moment
Image
Koppel1.png
Show 5 more facts
Commons category
Torque
topic's main category
Category:Torque
different from
moment of force
on focus list of Wikimedia project
Wikipedia:Vital articles/Level/4
maintained by WikiProject
WikiProject Mathematics
Sources (2)

via Wikidata · CC0

Article · 中文

在物理学裏,作用力促使物體繞著轉動軸或支點轉動的趨向,稱為力矩(英語:torque 或 moment),也就是扭转的力。转动力矩又称为转矩。力矩能够使物体改变其旋转运动。推擠或拖拉涉及到作用力,而扭转則涉及到力矩。如图右,力矩等於径向向量与作用力的叉積。 簡略地说,力矩是一種施加於好像螺栓或飛輪一類的物體的扭轉力。例如,用扳手的開口箝緊螺栓或螺帽,然後轉動扳手,這動作會產生力矩來轉動螺栓或螺帽。 根據国际单位制,力矩的单位是牛顿米。本物理量非能量,因此不能以焦耳(J)作單位;根據英制单位,力矩的单位则是英尺磅。力矩的表示符号是希腊字母,或。 力矩與三個物理量有關:施加的作用力、從轉軸到施力點的位移向量、兩個向量之間的夾角。力矩以向量方程式表示為 。 力矩的大小為 。

Abstract from DBpedia / Wikipedia · CC BY-SA

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