What is the source of gravitational force.?

Answer 1

Mass is a source for gravity. The other answers above make some good points. I just wanted to point out. That we don't even know what mass is. Hopefully, the newly build Large Hadron Collider at certain will find the Higgs-Boson particle, which would provide insight.

Answer 2

The answer by Dan S has some good information, but a lot of errors. We know that the gravitational field is a property of the presence of matter. General relativity describes it as a warping of spacetime in the presence of matter. The graviton, if it exists, is a virtual particle which mediates the gravitational force. It's more of a theoretical/mathematical construct rather than a particle that would ever be detectected with a particle accelerator. The photon is simply the quantum of the electromagnetic field. We don't yet know whether gravity is quantized. We haven't seen any direct evidence for that. But we don't know why mass has this property or how it exerts this influence.

Answer 3

Unknown

The photon is the source of light, microwaves, and radio. The electron is the source of electricity. The THEORITICAL particle for gravity is the graviton, but there is no proof that it exists.

Einstein’s Unified Field Theory combines the strong and weak nuclear forces with the force of magnetism and electricity as well as gravity. We have proved that all those forces are actually electricity in a different fashion except for gravity. If the Unified Field theory is correct then gravity and electricity are the same force, but we have no proof of that.

Einstein’s Special Theory of Relativity requires the existence of at least 11 dimensions. Current String Theory can require 20 or more dimensions. There is a theory that gravity is a force that is expressed from a different dimension, which is why we can’t determine exactly what it is. We can only see and understand the four dimensions; time, length, width, and depth. If gravity is from a higher dimension then that might explain why something as simple as a magnet can defeat it, but it is the strongest force in the universe; since it creates black holes. A black hole is pure gravity, nothing else.

We measure gravity in the rate of fall: Newtons. Gravity has an acceleration, on Earth at 1 G of 9.8 meters/second (32 ft/sec). We can time a falling object and the distance it travels, but that is the only way we know how to measure the force of gravity. We can’t detect it with a meter, just drop a rock. We can’t manipulate or track it and we don’t even know the speed that it travels or that it is even generated by a particle.

Gravity is a property that all mass has. When under 1G the mass of an object = its weight. But, while the gravity field can vary the mass is constant. Mass IS NOT gravity, that is a common mistake.

The new super collider in Europe is the largest in the world and capable of creating the smallest particles. Currently, electrons, leptons, quarks etc. are the smallest particle we know of. The new super collider could break these subatomic particles down and it may even find the graviton, but that is all theoretical.

We really don’t know anything more about gravity than the ancient Greeks did. Galileo experimented with it, Newton figured out the formulas to predict it, but neither one understood where the force came from or what caused it. The formula for gravity is just another version of F=ma from which ALL physics formulas are derived.

Answer 4

Gravitational force is the product of the masses of two bodies & it is the suare of the distance between the two bodies.
-But this is cetainly not the answer for your question-
gravitational force is due to the exchange of particles called 'gravitons'.Well, gravitation force is the weakest force existing in the nature.

Answer 5

Mass, the greater the mass of an object the greater is it's gravitational attraction.

Answer 6

Mass

Answer 7

gravitational source is proportional to the product of the 2 masses divided by the square of the distance between them

G= (constant) m1*m2/L^2

both the mass of each object and the distance between them are related.

Answer 8

Mass per square inch.

Answer 9

magnatic field of the earth

Answer 10

MASS