这就意味着，假如你将一固体固定在这个力场中,然后在力场中释放它，它有可能会朝向某一方向加速运动,但它绝不会旋转。

That means if you put an object in there that is completely immobile and you leave it in that force field, well, of course it might accelerate in some direction but it won't start spinning.

youdao

The answer is that simply knowing the particle has an acceleration is not enough to tell you where the particle will be.

答案是这样的,仅仅知道质点的加速度,是不足以告诉你它接下来的运动的

耶鲁公开课 - 基础物理课程节选

This particle is constantly changing its direction, but it therefore has an acceleration and the acceleration, we have shown here, is pointing towards the center.

这个质点恒定地改变它的运动方向,因此它具有加速度,而且这个加速度,我们前面也讲过了,指向圆心

耶鲁公开课 - 基础物理课程节选

And the electrical energy is the product of the charge on the electron times the voltage which is the potential difference through which the electron was accelerated. And so this allows me to, by increasing the voltage, increase the energy on the electron.

电子能量是电子上的电荷数,乘以电压的结果,这是种内在的差距,通过它电子运动得以加速，这也让我，通过增强电压，来增加电子能量。

麻省理工公开课 - 固态化学导论课程节选