Is there gravity in a vacuum?

Answer 1

Yes

there is gravity everywhere in the universe.

Gravity is a caused by the mutual attraction of bodies with mass. ie. objects attract each other. It exists in vacuums as well as on the earth.

The force is proportional to the mass of the two objects and it decreases in an inverse square law with distance.

Gravity can be considered to be a wave or a partical (Graviton)

Isaac Newton first deduced its properties and outlined them in his
Principia. His theories include the universal law of gravity as well as the laws of motion.

Einstein analysed this in more detail in his general theory of relativity

when you see astronauts floating in the vacuum of space, they are still experiencing gravity. What is happening is that the gravitational pull of the earth is balanced by the outward force called Centrifugal force.

In effect think of an astronaut in a space capsule - both are falling towards the earth - so the astronaut appears to float. The speed that they are moving is such that rather than getting closer to the earth when they fall - they rotate around the earth in a circle .

Answer 2

I don't know for certain but I think that it depends where the vacuum is. A vacuum on earth would have gravity, and the gravity would be stronger because there is no matter to resist the force of gravity inside the vacuum, however as soon as you put an object in the vacuum to test this theory you no longer have a vacuum?!?

Okay somebody used space and body's in space to answer this question, but I thought that it had recently been discovered that space was in actual fact not a vacuum.

Answer 3

Before i anwser the question may i state: "Please have mercy, your long anwsers are of no use a lot of the people reading them including myself don't even bother reading them so if you would be so kind as to shorten them and make them simple so that everybody could understand them not just copy and paste them, thank you"

All objects have gravity. It depends if you are on a planet or not, in space there isn't nothing to pull you towards it. Gravitational force is a force which attracts a mass to a larger mass. The earth pulls us down since it is bigger but you are wondering why a larger person doesn't pull a smaller person than itself this is because earth is there to stop them because the earth is bigger. So if i were to put you in a huge cylinder(the cylinder is vacuum inside) besides the fact that you would explode you would still fall on the ground but space is vacuum but it still doesn't pull you because there is nothing.

Answer 4

There is a gravitational force between every pair of masses in the universe, and it doesn't matter what is between them. You can't shield gravity. A perfect vacuum contains no matter, so a region of vacuum does not contribute to any gravitational field. Neither is it affected by a gravitational field.

Answer 5

the human beings who answer and also you're 0.5 good, 0.5 incorrect. it truly is authentic that there is centrifugal stress, simulating gravity, even in a vacuum. yet that's for products which will be fixed on the rotating habitat, no longer those floating above its interior floor. If someone in an section in structure were gazing the habitat ring rotate previous, he would sense no stress upon him to make him press downward onto the ring. he's a free floater, in problem-free words challenge to the microgravity of two very small thousands (himself and the habitat). If he grabs a handhold, or a "vertical" wall hits him so as that he's carried alongside with the rotation, he will be challenge to the guy made gravity or centrifugal stress. He will be rotating alongside with the habitat.

Answer 6

For there to be gravity, there must be some form of mass. If there was absolutely nothing you would have no mass and therefore no gravity. Even you exert gravity towards the earth.

One of the respondents mentioned about the effect of planets in space. Well the gravity is there because planets and stars have large masses.

Answer 7

Gravity is the attractive force between masses. It operates through a vacuum (or free-space if you will). We know this because planets orbit stars and the interplanetary space is effectively free-space.

Cheers.

Answer 8

Yes. A planet has an atmosphere because it has gravity, not the other way around. There's no atmosphere on the moon, there's still gravity though.

Answer 9

Yes, space is a vacuum, and the earth still exerts a gravitational pull on anything near it. Thats what keep objects in orbit.

Answer 10

Yes - gravity is entirely independent from the atmosphere.