2006-12-08 21:57:02 · 17 answers · asked by YOGI 1 in Science & Mathematics ➔ Astronomy & Space
I think your question is incomplete try to finish the whole question by adding extra details , then I and my friends all over the world will be able to clear your doubt . I have a doubt in your question how might earth and moon rotate or revolute anmong themselves? Earth revolutes the sun and moon revoulutes the earth . I think your question is why we see only one side or some part of the moon ? It's becuase the sun's light falls on some part of the moon and on the other part of the earth . I would be able to explain this more clearly in the form of picture . So , TEH MOON Gets only some light and we're able to see it . Please give a message for me I will clear your doubt and you can clear my doubt .
2006-12-09 23:17:51 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The moon orbits the earth and the earth orbits the moon. Both bodies feel tides, or tidal effects, that stretch and pull them. Tidal effects are why the moon always faces the earth, and the process is called tide locking.
When the moon first formed it formed from (most likely) a large body about the size of mars crashing into earth. This ejected material into orbit around the young earth, which then coelesced into the moon. Right after this happened, the moon was spinning so that standing on earth you would be able to tell it was spinning, and the Earth was rotating about once every six hours!
This couldn't last, though. The fast spin of the earth added orbital energy to the moon, making it move away from the earth, which in turn slowed the earth's spin rate to it's current ~24 hours. Meanwhile, the tidal pull of the earth on the moon slowed the moon's rotation so that it rotates in almost exactly the same time as it orbits the earth, so that we only ever see one face of the moon. The moon does wobble a bit though, and you can see slightly more than just half of the moon, if you know what you are looking for.
In the future, as the moon moves away from the earth, the orbit will reach a point where it is geostationary, meaning that it will orbit (and rotate) in the same amount of time that the earth rotates (which by then will be much slower than it is now). This means that the moon wouldn't move in the sky like it does now, it would just seem to hang there. Don't worry though, this will take a long, long time.
2006-12-09 08:11:31 · answer #2 · answered by ~XenoFluX 3 · 1⤊ 0⤋
The reason we see only one side is that the moon circles the Earth in the same amount of time it takes to rotate on its axis (29-1/2 days). But while the same side always faces us, all parts of the moon face the sun at different times. The moon does have a "far side," which we can never see from the Earth. But it does not have a "dark side" that never gets sunlight. (By the way, you can get a good look at a full moon on June 24.)
We see phases of the moon because sometimes the sunlit side is facing us (a full moon), sometimes only part of the side facing us is lit (gibbous and half moons), and sometimes the side facing us receives almost no light at all (new moon).
2006-12-09 06:30:30 · answer #3 · answered by apurva 2 · 2⤊ 0⤋
The time that moon takes to circle the earth is equal to the time the earth rotates around its axis and as a result, for us looking at the moon from the earth, there is only one visible face of the moon and the other side never turns visible.
2006-12-12 06:14:23 · answer #4 · answered by pravkas 2 · 0⤊ 0⤋
The answer is very simple.The time the moon takes to complete it's rotation is same as that required for it's revolution which is 27 days , 7 hours and 43 minutes.That is why , only one side of the moon always faces the earth.The other side is never seen from the earth.The side of the moon which faces the earth has also developed a bulge because of the gravitational pull of the earth.
2006-12-09 06:33:16 · answer #5 · answered by ravi_6530 2 · 1⤊ 0⤋
The moon takes about 28 days to rotate about itself which is the same time required to revolve around the earth. That is why it seems as if we are seeing only one side of the moon.
2006-12-09 11:16:21 · answer #6 · answered by hotshot 2 · 0⤊ 0⤋
Moon's self rotation and its revolving time around Earth are same 29 days.
That is why we see same side of the Moon.
When you tie ball with a String and swing rotate over your head you get the effect.
Ball represent Moon and you are Earth.
2006-12-13 01:41:24 · answer #7 · answered by Kuppu S 3 · 0⤊ 0⤋
Because the moon rotates so slowly that it completes one lunar rotation every one orbit around the Earth. In other words, the time of the lunar orbit is the same as the time of the lunar day - about 28 days.
2006-12-09 06:00:13 · answer #8 · answered by Paul H 6 · 1⤊ 0⤋
The moon spins around its axis once in twenty ight days by which time it completes one circle around the earth. That is that it makes one spin by the time it completes one circle around the earth. So one and the same face of the moon alone will be visible to all the sides of the earth all the time .
2006-12-10 07:50:06 · answer #9 · answered by Infinity 7 · 0⤊ 0⤋
moon has a tilt at the axis of 5 degree and thirty feet and also the time for it's rotation and revolution is same. moon also has no atmosphere and hence sometimes the radiant's from the sun enter and make an opaque reflection
2006-12-10 11:05:52 · answer #10 · answered by sumukh k 1 · 0⤊ 0⤋