Does the weight of an object affect its gravity???
406606
Your question is very awkwardly worded. I assume you're talking about mass, not weight. Mass is the amount of matter in something. Weight is force that gravity "pulls" on it. With the same object, mass is always constant. Weight changes if you're on the moon, or in outer space.\n\nAs for its gravity, do you mean the Earth's pull on it, or the gravity field the object projects? If it's the former, then yes. That's how weight is defined. All things fall at the same rate, however. As for the latter, then, yes, the mass of an object dictates how big the gravity field around it is. The Sun projects a huge gravitational well, while a penny projects next to nothing.
945855
NO.  All objects, when free-falling, fall at a constant acceleration of 9.80 m/s².  The formula to calculate the force of gravity on an object is Fg = m*g, where m is the mass of an object and g is the acceleratin due to gravity.  As you can see from this formula, since g must stay constant, if the mass increases, the force due to gravity must also increase.  Therefore, no matter what the mass of an object is, it will still accelerate towards the ground at the same rate.
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.
13785
No. As a simple example, imagine a snake curled into a perfect circle. Its center of gravity is in the center of the cirlcle the snake forms, which is within the empty hole in the middle.\n\nCenter of gravity is the average location of an object's weight.
635525
Gravity is determined by only 2 things- The mass of an object, and the distance that you are from the center of that mass.  So, the increased size of a planet will put you (on the surface) farther from the center of the planet, and thus decrease the gravity-but the increased mass of the planet will cause increased gravity, and the mass is by far the stronger effect.  You have a gravity strength of 1G on the surface of the Earth, for example-but if you had a planet with the same *mass* as Earth, but the size of the moon, the gravity on the surface would be much greater, because you would be closer to the center of the planet. Just those two things-the mass of the planet, and the distance on the surface between you and the center of the planet.
1011253
Well, gravity between two objects is proportional to the masses of the objects.  If the Earth gained more mass, objects on Earth would weigh more.\n\nActually, the Earth does gain a bit of mass each year (from dust, micrometeors, and other tiny particles floating around in space).  However, this amount is so small compared to the existing mass of the Earth, that we can't feel the effect.\n\nThere are a lot of things that weigh more than the Earth ... Jupiter, the Sun, any other star.
988819
Extremely little. The Gravity in Newtonian Physics is determined by the mass of the body which is not effected by the state of the matter only its net mass.\n\nHowever in General Relativity not only the mass but the pressure is involved. So in General Relativity increased positive pressure does very slightly increase the gravity. But this added amount is usually very insignificant for most bodies due to the fact that these pressures are extremely small relative to the speed of light.
298529
If you know the density of the material, you can measure it's volume.  D = M / V.  Therefore, the mass equals the density of the object times the volume.  The weight of the material is its mass times gravity.
857884
If, by "gravitational acceleration," you mean the acceleration of gravity, g, then the answer is that air resistance has no effect.  But you probably mean the acceleration of an object due to gravity.  If you drop an object, it accelerates downward, initially with an acceleration of g, ie, 9.81 m/s^2 or 32.2 ft/s^2.  But as soon as it is moving, the air striking its surface exerts a force on it that opposes its fall.  That force increases with the square of the object's velocity; in other words, if the velocity is, say, 10 m/s, the force on it due to air resistance will be 4 times what it was at 5 m/s.  The object will continue to accelerate, but its acceleration will continually decrease.  Finally, when the force on it due to air resistance is equal to the force of the gravitational attraction, it will reach a constant velocity.  That's what's called "terminal velocity."  If there is no air resistance, mass has no effect on the object's acceleration.  However, a more massive object will reach a higher terminal velocity than a less massive one, if both experience the same air resistance.  In other words, a sphere made of lead will accelerate faster and reach a higher velocity than one made of aluminum, if they're the same diameter and have the same surface properties.
1000866
that's why mass is not wieght, it is not dependent on gravity. so yes
613586
For calculating weight you will be needing the specific gravity or bulk density of the material it is made of.\nElse you need a weigh balance.
111372
mass is the amount of matter, weight is the force gravity exerts on an object. mass stays the same, but weight changes if you go to the moon etc.
331061
'Weight' is actually the wrong term since it describes 'mass multiplied by the force of gravity', what you are probably referring to is the 'mass' of earth.\n\nThe earth is not an entirely closed system, so its mass would have changed over history, if only in insignificant quantities. Such as space shuttles leaving, meteors hitting earth and other such external influences.\n\nDestruction of earth such as nuclear explosion would NOT result in any change in mass though, merely a change in state.
51910
Weight is a force, but when something is weighed you actually measure it's mass assuming you are in an environment in which the force of gravity is constant (i.e., you're at a fixed location <radius from the center> on a planet or massive planetary mass).\n\nof course, one's mass can be approximated by W=mg at fixed radii from such planetary masses (like the earth, a massive asteroid, a superdense star, whatever...) if the force of gravity, g, is known at that radius.\n\nThere are 2 possible variables here - mass and the force of gravity.  Which one do you know?  usually an approximation for g is given.  Which one do you measure, then...that would be mass.
682637
I hate to say it,but,your question is flawed,none of the above will increase the gravitational force,the only effect difference is it's terminal velocity by mass. distance and size has no effect against the gravitational force,just the force against it...
48086
Sometimes, you weigh less, gravity's pull does not change, doy!
94009
Weight can be determined by mass and the pull of gravity exerted on an object. But mass is not an indication of weight. Mass is presumed to be constant through varying gravities while weight fluctuates because it is proportional to both of these variables.