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Asked by nishamaliknm to Betul, Bridget, Ceri-Wyn, Laurel, Maria on 24 Jun 2010 in Categories: Your Research.
Question: can gravity be produced at any planet ? or can gravity be produced on any specific object?
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Laurel Fogarty answered on 21 Jun 2010:
Gravity is one of the 4 fundamental fundamental forces and it is the force that attracts objects with mass to each other. Everything has gravity but we will only feel the effects of really big things like planets and stars.
Gravity is a force like the force of a magnet, it is not really produced- its just there! There is a lot of research going on to find out how and why it is there. This is a topic that has kept some of the best scientists busy for centuries- Galileo, Newton and Einstein all worked on this problem.
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Bridget Waller answered on 21 Jun 2010:
Yes, gravity results from any body of mass – one of the fundamental laws of nature!
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Ceri-Wyn Thomas answered on 21 Jun 2010:
Any object that has mass will be able to exert a gravitational pull on another object. Every planet will therefore exert a gravitational attraction on other bodies. Gravity is one of the fundamental laws of the universe so it’s pretty inescapable!
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Betul Arslan answered on 24 Jun 2010:
There may be no gravity in space but there is a gravitational force between the planets. The satellites of NASA stay in orbit but that does not mean that they stay ‘put’. They move, in a line (like moon orbiting around the earth) and similarly they do have a gravitational force. (This is the answer to your second question in comment section, hope it helps!)
Comments
nishamaliknm commented on :
if their is no gravity in space then how come the rockets which are launched by NASA stay still in space and when any part of satellight doesn’t work how does scientists work in space because the equipment are and the parts of the satelight must be very sensitive, so do they suffer from any problem durig working in space?
Betul commented on :
here may be no gravity in space but there is a gravitational force between the planets. The satellites of NASA stay in orbit but that does not mean that they stay ‘put’. They move, in a line (like moon orbiting around the earth) and similarly they do have a gravitational force. (This is the answer to your second question in comment section, hope it helps!)
Betul commented on :
Yes, working in space is not easy. But good thing is, it is getting easier. Astronauts used to go to space in shuttles smaller than a volswagen beetle. Also, back in the day the missions were different, astronauts were out in the space to discover the moon, but now they go mostly to fix stuff (like the satellites that you mentioned) although most of the work is done by robots human hands are still necessary apparently. Many health complications might occur, that’s why the astronauts go through a ton of health screening before the actual mission. Great questions.