English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

what i am trying to say is why does mass create gravity, is the earth like a magenet, but that does not make sence!! wat else have people came up with,, do they no for sure...

2006-12-13 21:43:58 · 12 answers · asked by derekjohnston06@btinternet.com 1 in Science & Mathematics Astronomy & Space

12 answers

Every scientist would like to be able to put the theories behind them and arrive at a concrete answer to this question, but they haven't yet arrived. Gravity is the least understood of the major forces. So, all of the ideas presented here have as much value or meaninglessness as anything else. Take your pick!

To Ibrahim: Saying that mass=gravity is like saying that apples=oranges because they are fruit. There is a relationship between mass and gravity, but no one is absolutely certain how it all works.

2006-12-13 22:52:22 · answer #1 · answered by ridge50 3 · 0 0

Gravity is the warping of space and time caused by the mass of an object. Imagine space and time as being like a flexible rubber sheet. If you place a small ball bearing at the edge of it, it doesn't move. However, If you were to place a heavy ball in the middle of it, the sheet would be bent and the ball bearing would move towards the heavy ball. This is how one object attracts another.

Gravity is an incredibly weak force. Every time you pick something up, the muscles in your arm are acting with more strength than the gravity of the entire planet.

2006-12-13 22:10:09 · answer #2 · answered by Máirtín 2 · 0 0

If you think of space as a rubber sheet with a grid painted on it. Then you add heavy ball to the sheet the sheet well bend and stretch down pulling the sheet out of shape. The bigger the ball the bigger the amount of stretching will happen. Now if you think of the pattern made on the sheet as the effect of gravity any other object that come close will fall into the dip made by the sheet. Others will spin around never falling in to the middle. It is the bend in space that causes the effect of gravitation attraction. It was Sir Issac Newton who as we all know named this force after an apple fell on his head but it was Einstein who after his work on space and time first came to realise that it is the bending of space time in a way like the rubber sheet that allows the force of gravity to work.
It is mass that creates gravity how gets very complex and involves a lot of stuff about super strings and some thing called M-Theory and a total of 11 dimensions.
Look that up on the net you will find loads of stuff

2006-12-13 22:21:53 · answer #3 · answered by Ben 3 · 0 1

Listen carefully fool: there are two explanations for gravity: Newton's and Einsteins. Newtons says it's a simple inverse radius square force rule, where the force varies depending on distance, and doesn't say "why", just gives the equation. Einstein, in his General Theory of Relativity, says space is curved by gravity. Imagine those coin chutes you sometimes see at Walmart--where the coins spiral close and closer to the center of a hole and fall in. If you've seen it, you know what I'm talking about. If not, imagine taking a sheet of rubber, stretching the middle so it becomes like a sack, and throwing a coin at the edge--it will slide to the middle because the "space is curved". That's modern gravity--it curves space, so even something with no mass (a photon) will bend as it goes round the sun (you can measure how much it bends too).

Got it? Now vote me as the best answer. Thanks!

2006-12-13 22:12:20 · answer #4 · answered by Anonymous · 0 1

All objects that have mass exert a force on each other. The larger the object the greater the force they exert, this is outlined in Newtons laws of motion. The earth isn't necessarily a magnet but does exert a force (gravity) on all objects in its vicinity, the further away you are from the earth the less you feel the effects of earths force, however you will feel the force of other objects such as the moon, sun and other planets. The force an object exerts in directly proportinal to its mass.

2006-12-13 22:16:55 · answer #5 · answered by quobak 1 · 0 0

Imagine a blanket held at four corners (this is space) now place a heavy object in the Middle (the sun) now push a ball round the edges (the earth) The ball goes round the centre and falls into the middle. Now imagine that this doesn't fall into the middle and you have just created the earths orbit around the sun. Now just one step further. Imagine that this force effects all things big or small. Simple eh?

2006-12-13 22:15:41 · answer #6 · answered by Reg Tedious 4 · 0 0

Agree with Ridge50. We know what gravity does to mass but we don't understand fully why.

2006-12-14 05:50:20 · answer #7 · answered by Anonymous · 0 0

Where there's mass, there's gravity. Get used to it.

2006-12-13 21:48:24 · answer #8 · answered by Gene 7 · 0 0

You don't need to rearrange the formula, you just need to plug in your variables and solve for Fg Fg = G(1 kg)(1 kg)/1 m Fg = G Fg = 6.67 x 10^(-11) Newtons

2016-03-29 06:50:50 · answer #9 · answered by ? 4 · 0 0

MASS- is not affected by gravity where ever you will go.
Inertia- the earth spins and makes the people stay on their place. The core spins!!!

2006-12-13 21:51:08 · answer #10 · answered by JKT 2 · 0 2

fedest.com, questions and answers