What causes Gravity?

Question

What causes the magnetic pull to the north?

Answer 1

Gravity is caused by the planet in motion, you know spinning! Well I believe that polarity is one of the big secrets of the universe, cause with polarity, you take an object, thing or mass of some kind and magnetize it, you place it between two magnets, you have motion! Without polarization or magnetization, you don't have any movement, unless you have some force, pressure or vacuum. But if you have movement already from gravity and a spinning direction to boot, then add some polarity to it, then you have additional pull. So I think with the proper magnetization, along with the direction of the spin, you can have a pull. If you buy that, then I have some land I am selling too!

Answer 2

The gravity and magnetic pull to the north are two different things. Gravity is caused by bend in spaccetime that is casued by anything will mass. Magnetic orientation of the earth is thought to be caused by the convection currents of all the melted metals.

Answer 3

The root mechanism of gravity, as far as I know, is still unknown. It's been conclusively linked to mass, but the "How's That Work" chapter hasn't been closed on that Theory.

As for the magnetic question, there is no "magnetic pull to the north". The Earth has a magnetic field due to its liquid iron core. Magnetic fields, if you remember from your Advanced Astrophysics course, are bipolar, like my aunt: they have two directions. One pole happens to be near the North pole of our planet and the other pole, quite un-coincidentally, is near the South pole. They aren't exactly at the poles and they can be quite far off and still be magnetic.

BTW, not sure why you put the two questions in one, but a link between gravity and magnetism has not yet been shown to exist. Some people think one may, though.

Answer 4

Every planetary body, including the Earth, is surrounded by its own gravitational field, which exerts an attractive force on any object. This field is proportional to the body's mass and varies inversely with the square of distance from the body. The gravitational field is numerically equal to the acceleration of objects under its influence, and its value at the Earth's surface, denoted g, is approximately 9.8 m/s² or 32.17 ft/s². This means that, ignoring air resistance, an object falling freely near the earth's surface increases in speed by 9.807 m/s (around 22 mph) for each second of its descent. Thus, an object starting from rest will attain a speed of 9.807 m/s (32.17 ft/s) after one second, 19.614 m/s (64.34 ft/s) after two seconds, and so on. According to Newton's 3rd Law, the Earth itself experiences an equal and opposite force to that acting on the falling object, meaning that the Earth also accelerates towards the object. However, because the mass of the Earth is huge, the measurable acceleration of the Earth by this same force is negligible, when measured relative to the system's center of mass.

Answer 5

The simple answer:

Gravity is a property of mass. Anything with mass, exerts a graviational field.

But nobody really knows why mass creates gravity. We think it is the Higgs Field and the Higgs Boson but it has never been proven.

Unfortunately our current particle accelerators do not have enough energy to allow us to detech the Higgs Boson.

Answer 6

gravity is unexplaind matter of the universe, only mass is not justfyd gravity, may be there are 3 things to justyd to gravity, 1st is mass of the object, 2nd is centriufugal force(rotation of object on axis) 3rd is density of massive object,

Answer 7

No one knows. This is a nobel prize kind of question.

Possibly "Gravitons". But no one knows what that is.

Stay tuned.

Of course, the trivial answer is: "Mass". But no one knows why.

Answer 8

gravitational force of earth