Why does mass have gravity?

Answer 1

So... this question question has all levels of answers, most of them weird as you can think of.

Everything we know of is affected by gravity. So, it's not just massive objects (ie light). The particle physicist will tell you mass is affected by gravity because all particles/fields interact with each other through a "metric". The metric tells you how the geometry of an area of space time is laid out. That geometry is determined by matter... or even more esoterically, by "gravitons" which is supposedly really what is warping space time. Gravitons are the "interacting particle" of the gravitational force.

To sum up, why does mass gravitate? Because it, like all fields/particles is coupled to gravity through geometry. Beyond this kind of abstract answer you kind of just say, "because it does, because that's what I see." It's more of a metaphysical thing at that point. Sorry to be so esoteric.

Answer 2

To understand a black hole we must know something about mass and gravity. Every thing has mass. Mass is the amount of material that makes up all things. The mass of an object makes it attract other objects. This attraction is called gravity. Gravity is the force of attraction between two masses.

Sometimes people mistake mass and weight. Weight is a measure of the force of gravity between an object and the earth. When you weigh yourself on a scale, what the scale is really telling you is how hard the Earth's gravity is pulling on you . Astronauts in space feel "weightless". They are too far from the Earth to feel gravity but they still have the same amount of mass as they have always had.

Answer 3

Mass doesn't have gravity -- mass CAUSES the effect known as gravity. It does this by distorting or bending space, like a bowling ball sitting on a thin rubber sheet puts a dimple in the sheet. Exactly HOW mass does this is not known. For that matter, science has yet to adequately explain why mass the any of its observed characteristics, like inertia etc.,.

At this point, a lot of research is being done investigating a theoretical feature of the universe known as the Higgs Field. Scientists hope that by "discovering" the Higgs Field and its associated particle (..Higgs boson) our understanding of mass and gravity will be advanced.

Answer 4

Gravity is defined as the attractive force between objects with mass. So, by definition, all objects with mass has gravity.

Now, why does gravity exist? We aren't sure yet. It's one of the four fundamental forces, along with electromagnetic, weak nuclear, and strong nuclear, each of which is independent of each other. There is a foundation to everything, and these forces are like the foundation to physics and our life.

Check out this link:

http://www.phy6.org/stargaze/StarFAQ5.htm#q93

(Ctrl-F and search for gravity). It gives some more explanations.

Answer 5

That is a very good question but I do not believe that anyone has found an answer. Physicist are trying to figure where does gravity come from and as of now I think they are on the conclusion that gravity is found in the 5th dimension. If I was a physicist I wish I could help you more. :(

Answer 6

Like some people have already mentioned, Physicists still don't know.
We know the "why" part of the other forces, but not gravity. If we did, a lot of Physicists would be out of a job.

Answer 7

Mass by itself does not have gravity. The WEIGHT of something does have gravity and is calculated using W = mg ( mass x gravitational constant) which for earth is 9.81N/Kg (i think).

However, overall, mass has gravity, because it just does. Everything on earth experiences some force of gravity, without it we would be in bother.

Answer 8

You know, no one knows why except for the geometric explanations that Einstein had which says the mass warps the space-time structure of the universe.

Answer 9

Mass has no gravity.
A unified body of matter with no specific shape:
A grouping of individual parts or elements that compose a unified body of unspecified size or quantity:
A large but nonspecific amount or number

Answer 10

mass is made of energy waves that distort the fabric of space. this distortion is what you term gravity. Gravity ain't real, it is just distorted energy frequencies