How big does an object have to be to have it's own gravity?

Answer 1

All objects have their own gravity, so long as they have mass. Size doesn't matter. The Earth has gravity, the Moon has gravity and even the monitor in front of you has gravity, just the monitor has a lot less than the Earth and Moon do. In fact, gravity is a force BETWEEN two objects rather than a force FROM one object, so if your monitor had no gravity, the Earth would not hold it down, even though it holds everything else down.

Answer 2

All matter has gravity, which is a force that attracts other matter. The Universal Gravity Equation states that the force of gravity depends on the masses of the objects and the square of the distance between them. This equation can be used to determine the acceleration of gravity on Earth and other applications.

Answer 3

Everything with mass has its own gravity - however, gravity is a pretty weak force compared to the electromagnetic force, so only truly massive objects (like the Earth, Sun and Moon) have gravitational effects that we can notice, because the gravitational pull exerted by your own body on, say, a coffee cup is extremely small.

Answer 4

Everything that has mass has its own gravity. Size does not matter. It is just that the gravity of small objects is extremely weak, but that doesn't mean it isn't there.

Answer 5

any mass has gravity. We don't feel it here on earth because the gravitational pull of the earth itself is so extreme, it outweighs any gravitational pull from object to object within our atmosphere. You can't detect it.

If you and I were in space far from the gravitational pull of any planets, stars or other objects - we might be able to measure a gravitational pull between each other.

Answer 6

All objects have a gravitational pull towards every other object. The little ones just don't have much of an effect and the far off one don't have much effect.

In terms of the earth's orbit and life here, you can neglect basically everything but the Sun, our moon, and Jupiter.

Answer 7

the gravity of the object is not due to its mass, an object should rotate in order to have a 'gravity pull'. if the earth stops rotating it would lose its gravitational power. so " TO ATTAIN GRAVITY AN OBJECT SHOULD ROTATE WITH A FREQUENCY THAT SHOULD BE EQUAL TO f = 1/12(g/R) (g and R in under root).
AND IT IS INDEPENDENT OF THE MASS IT CARRIES.

Answer 8

There is no minimum size. Even a single atom has its own gravity. Of course it is a very very weak gravity, but it isn't zero.

Answer 9

Everything attracts everything ese ("has its own gravity") but if you do the arithmetic you will see that it doesn't attract very hard. Even if a bug jumped up the earth would move with it - but the amount would be extremely small.

Answer 10

Everything with mass has gravity.