The equipartition theorem states that a particles' kinetic energy-the energy it possesses due to motion-is determined only by its temperature, not its size or mass.
能量均分定理是指粒子的动能——即粒子移动具有的能量——只由其温度决定，而非其大小或质量。
Now, in physics we do believe very strongly in the conservation of energy, not necessarily in the conservation of kinetic energy.
在物理中我们并非坚信，能量是守恒的，这并不是一定的，动能不一定守恒。
So, you can imagine, that we'll actually probably have a lot of kinetic energy left over if we put a lot of energy in in the first place.
因此，可以想象，如果我们一开始,就注入大量的能量,那么得到的动能也应该很大。
And this rotational kinetic energy can then be, perhaps, converted into electricity or in other forms of energy.
这个旋转动能，可以，转换为电力，或者其他形式的能量。
Now we can calculate what the difference is between the potential energy... the kinetic energy after the collision and the kinetic energy before the collision.
我们可以计算出差别，在储存能量。，与碰撞后动能的差别，还有碰撞前动能。
We had this collision, and I want you to tell me whether you think that the kinetic energy has perhaps increased or decreased or maybe the kinetic energy hasn't changed.
在这次碰撞中，我希望你们告诉我，你是否这样认为，动能也许增加，也许减小，也许保持不变。
So you're using, then, the conversion of gravitational potential energy to kinetic energy.
所以你在利用，重力势能，转换成，动能。
So what, now, is then the total -- energy of the system-- that is, the sum of the kinetic energy plus the potential energy?
所以现在系统内,总能量是多少-,是动能和,势能之和吗？
The energy possessed by an object by virtue of its motion is called kinetic energy, or energy of motion.
物体由于运动而具有的能量叫动能。
And what we have left over is this amount of energy here, which is going to be the kinetic energy of the ejected electron.
都用来发射它，剩下的这些就是，出射电子的动能。
So in the case of 12 32, that is our highest kinetic energy, it's the smallest amount of energy it takes to pop an electron out of that orbital.
因此，1232是我们能够得到的,最高的动能，它是从这个轨道中,打出一个电子需要消耗的最低能量。
So that's why we see the 2 p here, 1206 the 2 s is 12 06, and it makes sense that what we see as the greatest ionization energy, which is also the smallest kinetic energy is that 1 s orbital.
这就是为什么我们看到，2，p在这里，2，s对应,那么我们看到对应最高的电离能，同时也对应最低的动能的,应该就是，1，s，轨道。
Well, the kinetic energy is minus energy is U, and so this is... +1/2U this is plus one-half U.
动能为,势能为U，所以这是。,这是。
During such a collision, their kinetic energy is converted into other particles (since, as Einstein showed, energy and mass are but two sides of the same coin).
在这样的撞击过程中，它们的动能转换成额外的粒子(正如爱因斯坦所指出的那样，这是由于能量和质量只是同一个硬币的两面而已)。
Now the energy that we're trying to capture is kinetic energy of these fission products.
现在，我们能够尝试获得的能量，就是这些裂变产物的动能。
For us right now, the challenge is figuring out how to transform the technology's potential energy into kinetic energy that can fuel successful projects in both the public and commercial sectors.
对于我们来说，现在的难题是解决如何将技术的潜在能量转化成促使公共和商业部门的项目取得成功的动能的问题。
It means that we better get away from these deterministic models where we have a little electron here with its potential energy and its kinetic energy.
它的意思是我们最好远离，这些确定性模型，那里有一个小电子，它具有势能和动能。
It turns kinetic energy into heat, and that is perfectly fine in the work-energy theorem.
可以把动能转为热量，这点在功能定理，中是非常好的。
And when the traffic light turns green, you convert it back rotational kinetic energy into linear kinetic energy and you keep going again.
绿灯亮起之时，将其转换回来，将旋转动能，转化为直线动能，你又再往前行进。
This one now has kinetic energy and this one has kinetic energy.
现在它具有了动能，这个也有了动能。
That means the sum of potential energy and kinetic energy.
总功指的是势能,和动能的总和。
Kinetic energy can be converted back to potential energy, can be converted back, - but the sum of them — which we call "mechanical energy" — is conserved.
动能可以转化，成为势能，也可以转化为动能，但是总和-，我们叫做的，机械能，是恒定的。
Maybe the sun is spinning down, is slowing down and maybe the energy that we get is nothing but rotational kinetic energy.
也许太阳转速正减慢，也许我们得到的能量,不是别的，而是旋转动能。
Now, there was a certain amount of kinetic energy before the collision, and of course, we can all calculate that kinetic energy before the collision.
原来有一定量的，碰撞前的动能，当然，我们可以计算出来，碰撞前的动能。
The atoms do not release the energy as kinetic energy but release it in the form of large amounts of electromagnetic radiation.
原子不会以动能形式释放能量，而是通过大量的电磁辐射释放。
So there's no question that in the case of this rotating neutron star, all the energy that it radiates is at the expense of rotational kinetic energy.
毫无疑问，在这个，旋转中子星的例子里，所有辐射的能量，都是以旋转动能，为代价。
Then we have the conservation - of mechanical energy — the sum of kinetic energy and potential energy.
我们知道，机械能守恒定律-，动能和，势能的总和。
Now, what we would like to do is we would like to convert all this gravitational potential energy into kinetic energy of that disk.
现在要做的，就是要转化，所有这些重力势能，变成圆盘的动能。
Kinetic energy before; kinetic energy afterwards.
之前的动能，之后的动能。
Kinetic energy before; kinetic energy afterwards.
之前的动能，之后的动能。
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