角速度

physical quantity defined as the rate of change of angular position whose direction is (if regarded as a vector) the axis of rotation

AI overview

Angular velocity measures how fast something is spinning or rotating around an axis, similar to how regular velocity measures how fast something moves in a straight line. It matters because it helps us understand and predict the behavior of rotating objects, from spinning wheels to orbiting planets.

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

In the Vinony graph

Vinony's link graph records 450 inbound references to 角速度, and connects out to rotational speed, position vector and radian per second.

Vinony files it under Angle, Kinematic properties and Rotational symmetry.

Vinony links it to 71 Wikipedia language editions.

Wikidata facts

Has part: axis of rotation
Image: Vector-omega.svg

Show 5 more facts

Stack Exchange tag: physics.stackexchange.com/tags/angular-velocity
Commons category: Angular velocity
different from: rotational speed
on focus list of Wikimedia project: Wikipedia:Vital articles/Level/4
maintained by WikiProject: WikiProject Mathematics

Sources (3)

via Wikidata · CC0

Article · 中文

角速度（Angular velocity）是在物理学中定义为角位移的变化率，描述物体轉動時，在单位时间内转过多少角度以及转动方向的向量，（更准确地说，是贗向量），通常用希腊字母或来表示。在国际单位制中，单位是弧度每秒（rad/s）。在日常生活，通常量度單位時間內的轉動週數，即是每分鐘轉速（rpm），電腦硬盤和汽車引擎轉數就是以rpm來量度，物理學則以rev/min表示每分鐘轉動週數。角速度的方向垂直于转动平面，可通过右手定则来确定，物體以逆時針方向轉動其角速度為正值，物體以順時針方向轉動其角速度為負值。角速度量值的大小稱作角速率，通常也是用ω來表示。

Abstract from DBpedia / Wikipedia · CC BY-SA