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圆周运动是一种常见的曲线运动,其作为基础性知识经常与电磁场等其他内容有机结合,在向心力的作用下不断改变物体的运动速度,使其能够遵循圆周轨迹持续运动.解圆周运动题,需要深化其内在联系,通过转换物理公式,熟悉运动要素间的联系,以完善自身的知识架构.一、圆周运动核心考点揭秘匀速圆周运动中,向心力与物体所受到的合外力息息相关,其与合外力的方向相同,指向圆周中心,且二者大小相等.向心力作为圆周运动的要素之一并没有某种确定性,其是由力
Circular motion is a common curve movement, which is often combined with other contents such as electromagnetic fields as a basic knowledge to continuously change the velocity of the object under the action of centripetal force so that it can follow the continuous movement of the circular path. To solve the circular motion problem, Need to deepen its internal relations, through the conversion of physical formulas, familiar with the linkages between sports elements, in order to improve their own knowledge structure.First, the core of the circular motion test center Uniform circular motion, the centripetal force and the object by the combined force is closely related to the The direction of the external force is the same, pointing to the center of the circle, and the two are equal in size. There is no certainty that centripetal force acts as one of the elements of the circular motion,