Gravitational pull is determined by __________.?

Question

mass

acceleration

volume

the sun

Answer 1

Mass.

Answer 2

Gravity is a force generated by mass. Massless particles, such as photons and neutrinos, generate no gravitational pull, no matter how many of the particles are concentrated into a volume of space. For objects made of normal matter (protons, neutrons, and electrons), the more massive the object, the more gravity it can generate.

The STRENGTH of gravitational pull of an object is determined by both its mass and its volume. If the Earth had its current mass, yet was twice it's current diameter, its gravitational pull on you would be much less. Jupiter has 318 times the mass of the earth, 1000 times the volume, yet its "surface" gravity (at the cloudtops) is only 2.5 times that of earth. You weigh more at the North Pole than at the equator because you are closer to the center of mass. Your mass and that of the earth don't change, but your mutual gravitational attraction increases at the poles because the poles are closer to the center of mass of the earth. Think of an exaggerated example. If the mass of the earth were turned into hydrogen gas and allowed to expand until the gas cloud were a sphere with the diameter of Pluto's orbit, and you were placed 10 feet outside that sphere, it would probably take days or months for the miniscule gravitational attraction to close the 10 foot gap. Yet, if the earth were compressed into a black hole, and you were 10 feet away, your life expectancy would be measured in milliseconds as you were drawn into the hole.

Answer 3

The answer is mass, not to be confused with weight!

Weight is a measure of how much you are "pulled" by gravity on the surface of a planet, like the Earth. But what about your weight when you are in a weightless place like outer space? Does the fact that you have near-zero weight in space mean that you have can't be pulled by a planet's gravity?

Not at all!! Even in space, you are being pulled in all directions by planets, star and galaxies. You are also being pulled gravitationally (but just the tiniest amount!) by any person or object floating around nearby. You are pulled along in proportion to your mass, which is a measure of your "pullability" by gravity. Large objects (like suns and planets) have lots of mass and pull on each other a lot. Small objects, a little. That's why relatively small objects (like satellites) appear to be pulled around by large objects. In reality, though, the small objects pull back, but their pull is so tiny that it's not usually worth measuring. So when you hear a report that the Space Shuttle is orbiting the Earth, you now know that in truth, the Earth and the Space Shuttle are in orbit around each other!

To sum up, the more mass you have, the more gravitational pull you can deliver! Even when you are weightless!

Answer 4

The value of acceleration due to gravity depends upon the mass(M) and radius(r) of the planet and is given by g = GM/r² where G is a constant.
Hence the gravitational pull is determined either by mass (M) or by the radius(r).
If you refer to the gravitational pull between two planets ,then the force depends upon the two masses and the distance between them.

Answer 5

That would be mass of both the objects involved.

You are pulling on the earth while the earth is pulling on you. The earth just has much more mass and can pull harder.

Also, the distance between the two objects makes a difference. Jupiter is pulling on you and you are pulling on Jupiter but the amount of gravity between you is just about non-existant. Probably completely unmeasurable.

Answer 6

Density. The denser the object, the more the pull on others.It would be mass except that when a star burns out and colapses, its mass becomes much denser and starts pulling surround stars into it. A black hole is formed. Which wasn't the case when it was only a star. Gravity is determined by mass multiplied its density.

Answer 7

Mass of the objects (and distance between them)

Answer 8

The mass of an object...
Maybe this site can help you out... cheers!

Answer 9

mass

Answer 10

http://library.thinkquest.org/27585/frameset_intro.html