Earths Gravity and other planets gravity?

Question

because of earths gravity in space if u go near earth it pulls you to its atmospere and on other planets the gravity might be diffrent so u acctually need to break into the planets crust to get in?

what do u think?

Answer 1

huh? Sorry, but that makes no sense. Earth's gravity is pulling you towards the core. We are being pulled towards the Earth's very dense core... but in order for an object to get there from outerspace, it has to travel through the atmosphere first.  

Answer 2

Gravity is directly related to mass. Basically, if the Earth was twice as large, it would have twice the gravitational pull. The moon is about 1/4 the size of Earth, so it only has about 1/4 of the gravitational pull that Earth does. Jupiter is huge, and its gravitational pull is also huge.

Therefore, a planet or moon with a weak gravitational pull would have to be pretty small, probably smaller than our moon. I don't think there would or could be an instance out there of a planet that only experiences gravity underneath the crust, if that is the question. Gravity is everywhere to some degree, but it is only noticeable in proximity to a large enough object.

Answer 3

Here's a little physics for you (courtesy of the great Newton)

The force of gravity that an object feels is equal to the mass of that object times the mass of the second object (usually a planet, such as earth), divided by the distance from the center of the planet squared. This number is then multiplied by the Gravitational Constant (which is a VERY small number, G, and we do not need to get into that). So,

Force= G(m1)(m2) / r^2

In essence, everything around you causes a gravitational pull. You cause a gravitational pull when you are near your best friend, and your friend causes a gravitational pull on you.

Answer 4

This is gravity:

(Energy = Mass) + Spacetime = Gravity

Energy + Spacetime = Gravity

Mass + Spacetime = Gravity

Spacetime + Mass:

http://www.ligo-wa.caltech.edu/LIGO_Publ...

Gravity.

Its like putting a heavy ball in the middle of a suspended sheet then putting little balls on the edge all the little balls will fall down the curve in the sheet and surround the big ball. The big ball represents mass and the sheet represents spacetime.

But unlike the sheet spacetime is 4D meaning it has Length, Height, Width & Motion so a ball in the middle of space time will pull things all around it smaller in mass towards it hence gravity.

Even you a person had a tennis ball and was out in the middle of space  the ball will be attracted to you as you will create gravity to it pulling it towards you.

Answer 5

This doesn't even make sense. But the simplicity of gravity is, the bigger it is the stronger its gravity.