How does gravity work?

Answer 1

Gravity is the force that holds everything down. Gravity also affects different people depending on their body mass. It you are taller, you have a greater gravitational pull on you which makes you weigh more. The force of gravity is strongest when it is closest to the core of the Earth. The closest that we can get to the core of the Earth is sea level. So you would weigh more at sea level than you would on a top of the mountain. You would still have the same body mass, but just a different body weight. Mass is how much matter is in something, and weight is the measure of the gravitational pull on you. So that is how you can weigh a lot if you are taller. You're not fat, you just have a strong gravitational pull.

Answer 2

This is not a simple question, and to be fair does not deserve a simple answer. I would suggest you read the wikipedia article on gravity, and the other people here that guess magnetism you should not pay attention there responses at all.

As an example to describe how different magnitism and gravity are, have you ever picked up a paper clip with a magnet? If you have than gauge the size of that magnet to the size of your source of gravity. That magnet no matter how big it is, has overcome the entire gravitational pull of the planet earth.

Answer 3

oh good grief! magnetism?! really now...

first, no one knows exactly how gravity works, but scientists have a pretty good guess. lets start with some basic info and see if you can reach the same conclusion as the scientists.

there are four basic interactions. it's been shown that the first, electromagnetic force, is carried by a particles. it's been shown that the second, the weak nuclear force, is carried by particles. it's been shown that the third, the strong nuclear force, is carried by particles. the only other basic interaction is gravitation. while it has yet to be proven, logic would seem to indicate that gravity is also carried by a particle.

of course, all scientists don't think that this is the best model, but many of them do. try a google search on "graviton" or "higgs boson" and see what you come up with.

Answer 4

it works very well!!

it is still being theorized that gravity travels as a wave but that its effect is instantaneous over cosmic distances, which violates conventional wave theory. If the sun suddenly disappeared, the gravity effect on the earth would be instantaneous and not take the 8 minutes it takes for an electromagnetic wave to travel the distance. Therefore, it would seem that gravity is a "condition" of space-time rather than something traveling through it.

Answer 5

magnetism? i've never heard that.

anything with mass and weight has a small amount of gravity. even the desk i'm typing at has gravity, but not enough to keep me hoplessly stuck to it or even draw me in at all. the earth and other planets have gravity because of there immense mass and/or weight. there can be no theories, because we know how it works. objects of great mass actually leave a "depression" in space sort of, a gravitational depression. the larger the mass and weight, the larger the depression and the greater the gravity.

Answer 6

The universal law of gravitation states that two small bodies or two spherical bodies of any size are attracted by a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
That is what we know about gravity. How it works is known only by its Creator. There are many theories about gravity. None I know explain exactly how it works.

Answer 7

It's a mono polar field which varies directly with mass
and inversely with the square of the distance between the
centers of gravity of two bodies with mass - according
to Newton. It's a curvature in space according to Einstein.
It's due to a certain vibration super small strings according to
theorists of quantum gravity.

Answer 8

The only accurate and honest answer is that we don't know. It's the least understood of the fundamental forces. Its mechanism has been described as the exchange of virtual particles called gravitons. It has been described as causing (or being) a warping of space-time. But we really don't know why there is an attractive force between any pair of particles with mass.

Computationally, it's proportional to the product of the two masses, and inversely proportional to the square of the distance between them:

f = -GMm/R^2
where G is the gravitational constant, M and m are the two masses, and R is the distance between them. Calculations involving more than two particles quickly get complicated.

Answer 9

Gravity is one of the fundamental interactions in nature. Gravity works by virtue that all objects in the universe attract (accelerate towards) each other. When you figure in momentum (mass and velocity), larger momentums have a stronger pull on smaller ones. Since a person is significantly smaller in mass than the earth, it has a far greater pull on us then we do on it.

Answer 10

first of all,gravitational force is the force that tends to pull an objects towards the centre of the earth.there is some part of the earth that is called vacuum,in this place,there is no air and therefore an object that has gone to this level cannot be pulled down back to the surface of the earth but in the part of the earth that air exist,the particles in the air including the action of the wind drives the object back to the surface of the earth and that is called the force of gravity.