What gives earth its gravity?

Answer 1

>It's mass and relative position in the fabric of space and time.<

Answer 2

Think about a cloth having grids of lines printed across it. and u put a ball on it. the centre of the cloth will be depressed by the weight of the ball and the grid lines will appear to be curved. The heavier the ball, steeper will be the curvature of grid lines. This curvature is nothing but gravity of that ball with respect to the cloth. So, earth also curves the space and time around it. By virtue of its mass, the space-time continum is curved around it. The curvature of this curve is called gravity.Now, If u put a lighter ball on the cloth, u'll find it is moving towards the heavier ball at the centre. Higher the mass of the center ball steeper 'll be the curve and the lighter ball will move faster towards it (means the body at center has higher gravity! or higher mass) But if u move away from the centre, the curve become flat and the lighter ball does not move. It shows that the greater your distance from a body (here Earth) the lesser will be the effect of gravity. Hence, gravity is not felt in space!

Answer 3

The mass of the Earth is what generates the gravity field of the Earth. The total amount of matter composing the Earth.

Answer 4

Most seem to have it correct, I just wanted to add(again) that spin does not give earth its gravity. It is strictly mass!

Now, the force of gravity is also realated to it's distance from the center of the body, but again, spin has nothing to do with the amount of gravity a body has.

Check Newton;s laws g=G * m0 * M1 / R². Nowhere in there is spin! Gravity is directly proportional to mass and indirectly proportional to the distance from center of m0 to center of m1!

Time for me to pull out Wordperfect and make another long reply on why spin does not cause gravity.

Answer 5

Gravity is a magnetic pull between two objects. The larger the objects mass the more gravity it creates. The sun, is large enough to hold our entire solar system in it's gravity, while Earth has only the moon in it's gravitational field. We have our own gravitational field, but because we have such little mass, we attract little more than dust.

Answer 6

The mass of the earth gives it its gravity. Bigger planets have more gravity.

Answer 7

Excellent question: Look at it this way - Every thing in the universe is composed of Atoms. Atoms contain a lot of empty space between the nucleus and the elcetrons spinning around the nucleus. The Earth and all planets in the known universe are composed of trillions of atoms, each with its on distinctive electromagnetic and gravitational properties, in relation to every adjacent atom, and so own. These combinations of trillions and trillions of atoms in the universe compose a possible gravitational field, as well as the movement of universes in relation to one another. Also, neutrinos may also contribute to the gravitational momentum of the universe.

Answer 8

Earth gets its gravity from its mass.... and nothing else. Rotation and motion have NOTHING to do with it.... we would still have the same gravity if earth was sitting still and not rotating.

Answer 9

It comes from its mass... and gravity itself is the warping of space-time created by an object with mass.

Answer 10

Mass. Gravity is a distortion of time space continuum caused by mass slowing time down.

Answer 11

earths gravity is the combined effect of all its atomic particles.each atom has its own gravity.