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plz deteal me . other planet moving round the sun but no goes on sun? while sun gravational feald act on planet in solar system

2006-12-27 23:15:21 · 14 answers · asked by Anonymous in Science & Mathematics Astronomy & Space

14 answers

The moon does not revolve 'around' the earth. Both the earth and the moon orbit a fixed, shared centre of gravity roughly 1,000 miles below the surface of the earth, so that the earth itself makes three distinct orbits: around its own axis, around this fixed gravitational centre, and around the sun.

It's because the moon exerts its own gravity upon the earth - like a small child being swung in circles by an adult, the adult too will turn around a space slightly infront of them, rather than simply turning on the spot.

2006-12-28 00:17:30 · answer #1 · answered by Psusennes 2 · 1 0

If the rotation of the moon was somehow stopped, it would fall onto the earth like a giant stone due to their mutual gravitational attraction. If the rotation of the moon was greatly speeded up somehow, it would leave its orbit and fly off into space. Because the force of gravity is exactly balanced with the forces trying to make the moon fly away, the moon remains in a nearly circular path about the earth. This also explains why planets orbit the sun although some paths are elliptical. The paths depend on the mutual gravitational attraction of the sun and its planets. That is like holding the planets with giant elastic bands. A slightly more complicated explanation maintains that the masses of the sun and a planet bend space causing the orbit to become the path of least resistance (much like a grooved circle).

2006-12-28 00:53:22 · answer #2 · answered by Kes 7 · 0 1

Actually, the earth and moon and sun all orbit around a common center of gravity. Because the sun is so much more massive than the earth or moon, that center of gravity is located within the sun so the sun sort of wobbles very slightly as the earth and moon (and other planets). Bodies always orbit around a common center of gravity.

2006-12-28 16:47:23 · answer #3 · answered by ZeedoT 3 · 0 0

the earth is very heavy compared to the moon. according to the universal of gravitation, mass is directly proportional to the force.
moon falls in to the earth this is the centripetal force but there is another force called the centrifuegal force which makes the body to move tangentially to the orbit of the earth, so the moon moves in a circular path and doesnot fall in to the earth.

2006-12-28 04:23:49 · answer #4 · answered by ram kumar 2 · 0 0

All these bodies, and also spacecraft in earth orbit, are balancing the gravitational pull against their own momentum in orbit. If you swing a ball around your head by a string, you can feel the pull on the string caused by the momentum of the ball's motion.

2006-12-28 00:01:49 · answer #5 · answered by Anonymous · 1 0

Because of the distance and the size, of bouth Earth and moon, we have only a orbital mouvement; the moon is outside of the gravitational field of the earth.

2006-12-27 23:25:09 · answer #6 · answered by Nicolaie S 2 · 0 1

its gravity....earth's gravity keeps the moon revolving around it and also keeps it a constant distance.........same goes for the sun........also since moon has its own gravitational pull it does not "come" to earth and stays where it is

2006-12-28 00:27:32 · answer #7 · answered by ax2kool 2 · 0 0

Moon is very small compared to earth. Actually you know, moon is really afraid of the earth. that is why it is only rotating around the earth. The moment it come near the earth, earth will eat away the moon.

2006-12-27 23:39:07 · answer #8 · answered by rtnkaypee 1 · 0 2

d eart & d moon attract eachother & due 2 d attraction a reulsion is even build up thats y d moon is in its place & d eart in its place

2006-12-27 23:40:28 · answer #9 · answered by asmita_u2 1 · 0 2

due to electromagnetical force of the planets and satellites orbits
and the speed of rotation and revolution

2006-12-29 23:17:35 · answer #10 · answered by Anonymous · 0 0

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