Gravity is an attractive force between any two masses.

重力任何两个物体之间的力。

And there's attractive forces between the water molecules holding the drop together.

同时还有水分子之间将水滴保持在一起的力。

Gravity is the attractive force between two objects with mass— any two objects with mass.

重力两个有质量的物体之间的力— —任何两个有质量的物体。

The molecules bind because of Van der Waals forces, the weak attractive force between uncharged molecules.

分子结合德华力， 即不带电分子之间的弱力。

And so the ball is in the field of gravity for Earth and experiences an attractive gravitational force.

此，球处于地球的力场中，并受力的。

So, it generates a huge attractive force.

所以，它产生了巨大的力。

We said they are attractive forces, and that they exist between all objects with mass.

我们说它们力，它们存在于所有有质量的物体之间。

Gravity is an attractive force, so objects with mass want to move towards the surface of the Earth.

重力一种力，此具有质量的物体想要向地球表面移动。

Now, if you increase the number of carbons, you're going to increase the number of attractive forces that are possible.

现在，如果你增加碳的数量，你就会增加可能存在的力的数量。

For really tiny animals, all they need to do is take advantage of water's strong surface tension, an attractive force between molecules on a liquid.

对于非常小的动物来说， 它们所需要做的就利用水强大的表面张力，即液体分子之间的力。

Well, one of the four fundamental forces of physics is the strong nuclear force, an attractive force that acts between protons and neutrons in a nucleus.

好吧，物理学的四种基本力之一强核力，这一种作用在原子核中的质子和中子之间的力。

If you have, then you have experienced the effect of surface tension, an attractive force created by chemical bonds between water molecules at a water's surface.

如果有，您就已经体验了表面张力的作用，表面张力由水表面的水分子之间的化学键形成的力。

In this case, the ball is in Earth's gravitational field, and so it feels an attractive force towards the Earth and the ball falls to the ground.

在这种情况下，球处于地球的力场中，此它感受了朝向地球的力，并且球落了地面上。

You can walk on solid ground like dirt, wood, or concrete because the attractive forces between the molecules are strong enough to hold all of them in place.

你可以在泥土、木头或混凝土等坚固的地面上行走， 分子之间的力足以将它们固定在适当的位置。

As the human meteoroid approached the sun or centre of attractive force, the attraction of one century squared itself to give the measure of attraction in the next.

当人类流星体接近太阳或力中心时， 一个世纪的力将自身平方以得出下一个世纪的力。

So in order to have the sock and the shirt attracted to each other they must have opposite net charges because they're experiencing an attractive electric force.

此，了使袜子和衬衫相互，它们必须具有相反的净电荷，它们正在经历力的电力。

Motion is the ultimate object of science, and measures of motion are many; but with thought as with matter, the true measure is mass in its astronomic sense — the sum or difference of attractive forces.

运动科学的最终对象，运动的量度有很多种；但思想和物质一样，真正的衡量标准天文学意义上的质量——力的总和或差异。

When a voltage is applied across two beamlike electrodes made of aluminium, which are separated by a gap of around 50 nanometres, charge builds up on each, creating an attractive force between them, until a critical point is reached.

两个柱状的铝电极间隔约50纳米，当电压加在这两个电极之间时，它们就会相互通电，在二者之间会形成一股力，直至达一个临界点。

Man commonly begs the question again taking for granted that he captures the forces. A dynamic theory, assigning attractive force to opposing bodies in proportion to the law of mass, takes for granted that the forces of nature capture man.

人们通常会再次回避这个问题，认他获得了力理所当然的。一种动力学理论，根据质量定律将力分配给相对的物体，理所当然地认自然力会人。