I dont understand gravity. what is it?! all i know, is it pulls everything to the earth. why?

Question

and why isnt ther much of it in space? what "creates" it.

Answer 1

Gravity is weird.
Well its not simply the force that pulls you to the earth. Every particle, atoms, molecules, you, me , everything, attracts all the other things around it. That force is called gravity.

I exert a force of attraction on other things around me, like my keyboard and my computer for example.

but then why dont they fall on me? thats because there is something beneath our feet that is way more denser than me.... earth.

gravity is directly proportional to density.
meaning the higher density, the bigger the force of attraction. and earth is so dense, comparitively, that i virtually exert no force on my surroundings.

everything attracts everything else, that is gravity. but because of the earth we dont notice anything else here.

in space, we escape the earth's gravitational field, and enter the sun's field. thats why the earth revolves around the sun.

zero gravity is a myth. gravity is minimum in space.
because there is something at a distance from you, it exerts a pull on you adn thats gravity.

hope i helped.

Answer 2

Gravity is caused by one thing: HEAVY OBJECTS.
The heavier an object is the more gravitational pull it has.

Anything that has mass (weight) has gravity associated with it. Gravity is a very small force. Just think......a book sitting on a table is being held in place by gravity, but you can easily pick up the book off of the table and overcome the power of gravity. If you were on Saturn first of all you would weigh more, and second it would be a lot harder to lift a book off of a table. This is ONLY because Saturn is much more massive than the Earth is.

Another thing to remember is that gravity becomes weaker as you move away from an object. If you are 100 miles from a planet the gravity is going to be much more powerful than if you were 500 miles from it.


If you learn anything from this please understand that the spinning of the Earth has nothing to do with its gravity. Some people think that if the Earth stopped spinning we would all float out into space. Not at all true.

Answer 3

Mass creates gravity.
It does not pull things towards earth. It "pulls" things to the center of the item, earth, a star, what ever.
Gravity is simply the pull of an item. Every item that has mass has gravity. The larger the item, the more it has. You and I have our own gravitational pull. I would most likely have more then you because I am a big guy. But the moon has far more then me, the earth far more then that Jupiter far more then that and the sun far more even still.
There is a great deal of it in space. It exists in all the known universe.
B

Answer 4

Mass creates gravity. Everything with mass, including you, has a gravitational force. But things with more mass have more gravity, which is why we're pulled to the Earth instead of you.

There IS gravity in space. All stars, galaxies, planets, rocks, etc have gravity, which is why they orbit things. The further away you get from an object, the smaller the gravitational pull.

Gravity is basically the warping of space - around a massive object, space is warped so that you fall into it, like the sides of a bowl.

Answer 5

The simplist way to put it is, think of every thing as a magnet. Take a small magnet like the ones off your refrigerator and you will have to hold a pin very close to it in order for the magnetic attraction to pull the pin towards the magnet. Get a larger magnet and you could place the pin farther away and the magnet will still be abel to pull the pin towards it. Now if gravity is slightly different to magnetism but it has a few similarites. Anything you can touch gravity, even you have your own gravitic force pulling objects towards you but you own gavitic force is over whelmed by the massive gravity of the Earth, like if you were to take the small refrigerator magnet and the pin and place them on the larger magnet from the speaker the refrigerator magnet would be unable to pull the pin towards it. I don't know where people got the idea that gravity is caused by the earth spinning, this actually has the opposite effect, counter acting gravity, called the Centrifugal or centripital force. try an experiment to prove this, hold your hands out to the side and spin in circles as fast as you can. You will begin to feel your blood rush out to the tips of your fingers. I hope this helped you.

Answer 6

Gravitation
From Wikipedia, the free encyclopedia
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For other uses, see Gravitation (disambiguation).
"Gravity" redirects here. For other uses, see Gravity (disambiguation).
Gravitation is a phenomenon through which all objects attract each other. Modern physics describes gravitation using the general theory of relativity, but the much simpler Newton's law of universal gravitation provides an excellent approximation in many cases. Gravitation is the reason for the very existence of the Earth, the Sun, and every object in the universe; without it, matter would not have coalesced into masses and life would not exist. Gravitation is also responsible for keeping the Earth and the other planets in their orbits around the Sun; the Moon in its orbit around the Earth; the formation of tides; and various other natural phenomena that we observe.


for alot more on gravity click on the link below!

Answer 7

Gravity or gravitational forces happen when one object attracts another.Every object in the universe that has mass has a gravitational pull or a gravitational force. Even you have gravity, but when you compare your mass to the mass of the Earth, your gravitational pull isn't very impressive. When the Earth spins and gravity pulls on the clouds, weather can be affected. The Earth's gravity even holds the atmosphere close to our surface. Smaller planets that have low gravity or no magnetic field cannot maintain and atmosphere.

Answer 8

is a phenomenon through which all objects attract each other. Modern physics describes gravitation using the general theory of relativity, but the much simpler Newton's law of universal gravitation provides an excellent approximation in many cases. Gravitation is the reason for the very existence of the Earth, the Sun, and every object in the universe; without it, matter would not have coalesced into masses and life would not exist. Gravity is also responsible for keeping the Earth and the other planets in their orbits around the Sun; the Moon in its orbit around the Earth; etc

Answer 9

Think about a cloth having grids of lines printed across it. and u put a ball on it. the centre of the cloth will be depressed by the weight of the ball and the grid lines will appear to be curved. The heavier the ball, steeper will be the curvature of grid lines. This curvature is nothing but gravity of that ball with respect to the cloth. So, earth also curves the space and time around it. By virtue of its "mass", the space-time continum is curved around it. The curvature of this curve is called gravity. If u put a lighter ball on the cloth, u'll find it is moving towards the heavier ball at the centre. Higher the mass of the center ball steeper 'll be the curve and the lighter ball will move faster towards it. If u move away from the centre then the curves will be flat so gravity is not felt in space.

Answer 10

Gravity is simply a name of the force that physicist think that attracts everything towards the centre of the earth.