Why does the moon affect all earth liquids?

Question

which liquids are affected

Answer 1

Well, that's not quite right. The Moon affects anything with mass, by virtue of its gravitation. It doesn't matter whether it is liquid or solid -- if it has the same mass, the Moon will pull on it the same amount. For liquids, however, it is more obvious that a force is acting on them since they deform much more readily than solids (which is why we have tides). In contrast, the solid earth crust only deforms a matter of a few feet under the influence of the Moon's gravity.

If you want to get mathematical, look up Newton's universal law of gravitation. It tells you that the pull of gravity between two objects is proportional to the mass of one object multiplied by the mass of the other. If both masses are large, e.g., the Moon and the mass of the Earth's ocean water, you get a large force. If one mass is large and the other imperceptibly tiny, like the mass of a person, the force is tiny as well. And this law also tells us that the force diminishes with the square of the distance. That is, if you double the distance between the objects, the force is now 1/4 of what it was. This means that the gravitational pull of a semi-truck passing you on the highway is probably more than the pull of the Moon on you, due in part to the fact that the truck is much MUCH closer.

For reference, below is a good page that highlights some of the more prominent misconceptions about gravity and tidal forces. It's worth a read.

Answer 2

because the gravitational pull of the moon.

Answer 3

because the force of gravity the oceans

Answer 4

Gravity.  That is why we have tides.

Answer 5

the gravity of the moon...=D

Answer 6

Gravity

Answer 7

None.