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All planets have a gravitational pull, but would other objects too? If there was a pen floating around in space would smaller objects be attracted to it? If this is true, How light would something have to be to be pulled in by a 10 pound weight in space?

2006-12-23 05:19:43 · 15 answers · asked by bohdan 2 in Science & Mathematics Astronomy & Space

15 answers

Yes, everything has a gravitational pull, even a pen. It can be calculated. The force of gravity between 2 object is proportional to the product of the masses and inversely proportional to the square of the distance between them.

So, for instance, the gravity between the Earth and the Moon is very strong. The gravity between the Earth and a pen at the distance of the Moon is significantly less strong.

Now if you change the distances you could get a stronger gravitational pull. For instance, if you move the pen at the distance of the Moon to a pen at the height of your hand, the gravitational pull to the Earth is about 3600=60*60 times stronger, because the distance between the earth and the moon is about 60 times as far as the distance between you and the center of the earth.

However, the gravity between two pens is insignificant, no matter how close the pens are, because their masses are so small.

To answer your question about the 10 poind weight, the better question is not "how light would something have to be..." but "how heavy would something have to be..." because the force goes UP with the mass of the objects! So, a light particle would not be pulled in as much as a heavy object. In fact, the Earth is extremely massive, and you know that the Earth and a 10 pound weight would attract each other! (Of course, the Earth would move a lot less than the 10 pound weight, because technically they would both move towards their center of mass...)

2006-12-23 06:45:09 · answer #1 · answered by frandogger 1 · 1 0

All objects composed of normal matter, and possibly some that aren't, have a gravitational pull. Physicists, will no doubt tell you that the force can be calculated. This is, however, only an approximation since it depends on the ideal case of two objects being isolated and being gravitationally effected only by each other. But no such situation exists since every object exerts gravity every object to a greater of lesser degree effects every other, therefore any calculation will only be an approximation

2006-12-23 06:55:00 · answer #2 · answered by phoneypersona 5 · 0 0

The Law of Universal Gravitation says that all objects are attracted to all other objects. This attraction is directly dependent on the mass and inversely dependent on the distance from the object. So Jupiter has the largest pull but we are a long ways away.

2006-12-23 05:24:44 · answer #3 · answered by science teacher 7 · 2 0

If you leave 2 pens apart in space with NO other forces present i.e they're on they're own. They will eventually be pulled together. But the pull of a pen is so small and insignificant, on earth for example you don't notice. So if you let go of the space shuttle on a space walk, don't worry, wait a few years and the pull of the shuttle will pull you back towards it, unless you're at a closer distance to earth and the earth's pull is stronger than the shuttle's then, uh oh!

2006-12-23 08:19:52 · answer #4 · answered by ukcufs 5 · 0 0

well kid, basically something of that size and weight probably would have its own gravitational pull...and if it did these smaller objects that u are talking about would have to be infinitesimal. because look at the size of the earth and the other planets, just think how does something ten pounds in weight compare in size to earth or Jupiter?

2006-12-23 05:28:22 · answer #5 · answered by lil-bit 1 · 1 0

definite each and every thing is definite via a a gravitational pull from each and every thing. each and every thing has a gravitational pull, Even human beings, yet have been so small, it is likewise possible to sense it. there's a focal element in our galaxy, a supermassive black hollow called Sagittarius A* in the middle of our galaxy. experience nonetheless each and every thing in our galaxy revolves around the Supermassive black hollow, It money owed for below 2% of the galaxy's mass. and you're incorrect approximately unfastened floating asteroids. Asteroids are additionally certain via a gravitational tension. The asteroids in our image voltaic gadget are certain via the gravitational pull of our solar, as a result they orbit the solar, some asteroids get caught via planets like Jupiter and Saturn and grow to be there moons. despite the fact that there could be unfastened floating planets or asteroids in the IGM (Inter Galactic Medium), the voids between galaxies. that is obtainable that some area debris or planets ejected from there discern famous individual and get away from there galaxy, basically floating around in darkish voids. yet finally even those issues gets caught via yet another gravitational tension, they could finally run into yet another galaxy or a stellar black hollow.

2016-10-28 05:44:51 · answer #6 · answered by ? 4 · 0 0

yeah everything has gravitational pull but it is soooooooo weak that it is not observed also it depends on the distance between the objects so more the distance weakerrrrrrrrrrrrr is the force. you get it.

Also want to confirm that gravitational pull is everywhere whether on earth or outside earth. between each and every object. got it.

2006-12-23 05:24:29 · answer #7 · answered by Mysterious 3 · 1 0

yes...and anything lighter than 10 pounds will be at least influenced by it. It may be pulled a lot more by something bigger not too far away. Zero gravity means everything is affected by everything pretty much, at least when it comes to gravitational pull.

2006-12-23 05:23:03 · answer #8 · answered by Anonymous · 0 0

evrything has a gravitational pull even in space there is a gravitational pull but if a pen was in space it wouldn't because it doesn't have enough mass to hold it

2006-12-23 05:22:12 · answer #9 · answered by Dw 2 · 0 0

Yes. If an object has mass then it has a gravitational pull.

2006-12-23 05:22:02 · answer #10 · answered by chad5871 2 · 0 0

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