What is the diff. between gravity and force fields? If any?
490956
gravity exists.  force fields do not.  \ngravity is an atractive force.  force-fields are described as a repelling force in most science fiction.
514076
It's true - gravity pulls harder (i.e. more force) on a more massive (i.e. heavier) object. BUT that object is harder to accelerate - it has more interia. The two effects cancel each other out.\n\nClearly you don't like equations, but putting it in numbers can help:\n\nIf a 1kg object is pulled towards the earth, what will be the force, and what will be the acceleration?\nForce = mass * earth's gravitational field strength\nso Force = 1kg * 9.81N/kg\nForce = 9.81N (or 10N, roughly)\n\nAcceleration = Force / Mass\nSo Acc'n = 9.81N / 1kg = 9.81 m/s^2\n\nNow consider the same for a 10kg object:\n\nForce is now 98.1N (or 100N, roughly)\nSo Acc'n = 98.1N / 10kg = 9.81 m/s^2\n\nSo the acceleration is the same.
300802
if the point is big the gravity don't effect it much but if it is small gravity will effect it i forgot the whole explanation though \n\nyou could try this link
464446
Gravitational potential = G *Mass of the earth/radius of the earth.\nIn other words its equal to Gravitational energy per unit mass.
771573
OK, I have found both these forces.\n\nWhat should I do now?
801582
No, physicists have always known that gravity is the one "force" that we really still don't understand. Now it is true that at macroscopic or large distance scales, we understand gravity very well through Einstein's General Relativity Theory. But at the quantum level, the scale of sub-atomic particles, we have no idea how gravity works there. And the most interesting thing is that when we try to probe and understand gravity at the quantum level, we find that we have to abandon all our currently understanding of space and time, as well as the notion of 3-dimensional space.
1184941
The force of gravity of one object on another is given by the equation\nF = (GMm)/r^2\n\nWhere G is the universal gravitational constant, M is the mass of one object, m is the mass of the other, and r is the distance between the two.\n\nYou can see that the greater the mass of the two objects, the stronger the force of one on the other is.\n\nIn short, things that are more massive get a better tug.
1093836
Centrifugal force and gravity.
559516
Force of gravitaional attraction is given by:\n\nF=G*m1*m2/(r^2)\n\nwhere:\nF=force\nG=universal gravitational constant\nm1=mass of first object\nm2=mass of second object\nr=distance between objects\n\nr must be infinitely large before force of attraction becomes zero.
21267
Gravity is the force of attraction between massive particles. Weight is determined by the mass of an object and its location in a gravitational field. While a great deal is known about the properties of gravity, the ultimate cause of the gravitational force remains an open question. General relativity is the most successful theory of gravitation to date. It postulates that mass and energy curve space-time, resulting in the phenomenon known as gravity.\n\nGravity is acceleration.  means that (if the mass is unvarying) there must be a force that causes a mass to accelerate. For a rocket ship, that is the rocket engine. For the earth, it is the compression of the mass between something on the surface of the earth and the earth's center of mass. The acceleration is in relation to spacetime in that the weight one feels is one's resistance to deviating from one's path in spacetime. The same holds true in the rocket ship except that a rocket engine supplies the force to accelerate an occupant from his spacetime path. There is no difference between the weight he feels because of gravity or the rocket.
738834
d is the most correct answer, yes.  \n\nHowever keep in mind that despite g being the "gravitational constant", acceleration caused by gravity DOES change depending on the the distance from the earth.  When we're talking about the difference of a table, there is practically no difference, however keep in mind that it does change.
140789
Gravity is the weakest of the four fundamental forces.  If you take the smallest amounts of the quantities that each force depends on (mass for gravity, charge for electromagnetic, etc.) and put them the same distance apart, then gravity is by far the weakest force.   But you have to use a very small distance, because the strong and weak forces are only short-range forces; they don't extend out much beyond the radius of a nucleus.  Consider the interaction between two quarks that are 3 x 10^-17 m apart.  Their strong nuclear interaction is about 100 times stronger than their electomagnetic interaction, about 1,000,000 times stronger than the weak interaction, and about 10^43 times stronger than the gravitational interaction.
834129
You are confusing energy and gravitational force. The two are\nnot equivalent. The property of gravity is based upon the mass of an object, the more mass an object has, the more gravity it posesses. The amount of gravity an object has does not increase or decrease with time.
911261
well, we know that F = ma, and with gravity, F = mg\n\nWhat causes this force? gravitational attraction, which is defined by:\n\nF = Gm1m2/r^2\n\nSo, we can say that mg=Gm1m2/r^2, where r is the distance between 2 objects (1 and 2).\n\nnow, lets solve it for g\n\ng=Gm/r^2\n\nthis shows us that g varies inversely with the SQUARE of the distance.  So the distance between the earth and an object would need to be r*(sqrt2)
1152166
a:  specific gravity is the ratio a subtances density compared to water or other reference material.  Density is weight per unit volume.\n\nb: mass is amount of substance, weight is the mass as it is affected by gravity.
262094
Quantum Field Theory (a theory dealing with forces as particle exchanges between discrete probabilistic phenomena) and General Relativity (a theory dealing with force as smooth spacetime manifolds). So the problem becomes trying to create a theory where gravity also has a force carrier particle with properties akin to the other forces.\nThe reconciliation of these two theories is the subject of modern membrane (M) theories. See the sources for details.
525267
Universal Law of Gravity.\nALL objects attract each other with a force of gravitational attraction. This force of gravitational attraction is directly dependent upon the masses of both objects and inversely proportional to the square of the distance which separates their centers.\n\nWhere ever you are gravity has got you some way, however weak, something somewhere will be pulling you towards it.