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单词 Angular motion
释义

Angular motion

原声例句
Veritasium真理元素

You can see these air bellows that are what's making the angular motion.

- 你可以看到这些空气波纹管产生角运动。

中文百科

圆周运动 Circular motion

（重定向自Angular motion）

在物理学中，圆周运动是指运动轨迹为圆或圆的一部分的一种运动。

圆周运动的例子有：一个轨道为圆的人造卫星的运动、一个电子垂直地进入一个均匀的磁场时所做的运动等等。

英语百科

Circular motion 圆周运动

（重定向自Angular motion）
Figure 1: Velocity v and acceleration a in uniform circular motion at angular rate ω; the speed is constant, but the velocity is always tangent to the orbit; the acceleration has constant magnitude, but always points toward the center of rotation
Figure 2: The velocity vectors at time t and time t + dt are moved from the orbit on the left to new positions where their tails coincide, on the right. Because the velocity is fixed in magnitude at v = r ω, the velocity vectors also sweep out a circular path at angular rate ω. As dt → 0, the acceleration vector a becomes perpendicular to v, which means it points toward the center of the orbit in the circle on the left. Angle ω dt is the very small angle between the two velocities and tends to zero as dt→ 0
Figure 3: (Left) Ball in circular motion – rope provides centripetal force to keep ball in circle (Right) Rope is cut and ball continues in straight line with velocity at the time of cutting the rope, in accord with Newton's law of inertia, because centripetal force is no longer there
Figure 1: Vector relationships for uniform circular motion; vector ω representing the rotation is normal to the plane of the orbit.

In physics, circular motion is a movement of an object along the circumference of a circle or rotation along a circular path. It can be uniform, with constant angular rate of rotation and constant speed, or non-uniform with a changing rate of rotation. The rotation around a fixed axis of a three-dimensional body involves circular motion of its parts. The equations of motion describe the movement of the center of mass of a body.
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更新时间：2025/6/17 7:04:05