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Prev. Answer : A satellite does not need fuel to keep orbiting because it continues to orbit due to its inertia, which balances the effect of Earth's gravity.
Improved Answer : Satellites with no atmospheric interactions IDEALLY revolve around the Earth due to inertia, BUT most satellites ARE FUELLED because :
(1) some of them have elliptical orbits that may bring them close to the atmosphere during their orbits (for example Molniya orbits).
(2) satellites are affected by third body gravitational interactions (Sun, Moon) that affect their position (orbital altitude) every time they complete one revolution.
(3) Solar radiation pressure can cause a deviation in path over one complete revolution.
(4) Meteoric rock particles may hit the satellite causing orbit deviation.
In fact, the major factor is usually the effect of atmospheric drag.
Hence, most satellites are fuelled to correct their deviations in position, averaged over one complete revolution, by giving optimum thrust, decided by Navigation & Control team at station in Earth.
Wiki User
∙ 10y ago
Wiki User
∙ 12y agoA satelite does not need fuel to keep orbiting because it is stuck in earths gravitational pull and rotates with the earth.
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How centrifugal force keep a satellite orbiting?
because of the gravitional pull of the universe..and the alignment of the asteroids...
Why doesn't a satellite need fuel to keep moving?
A satellite needs fuel to keep moving because when it's in space there is no air resistance and the gravitational pull and friction won't effect it.
Does a satellite need fuel to keep moving?
Satellites do not need fuel to keep moving because of their inertia and the centripetal force.
Why does aeroplane requires fuel but satellite does not require?
Actually, satellites require fuel to keep them in the correct position. When a satellite runs out of fuel, they launch a new one. Airplanes use fuel to give them enough speed to provide the lift that keeps them in the air.
Why do engineers keep the masses of satellites as small as possible?
The cost of the launch of a satellite is directly tied to its mass. The heavier the satellite the more fuel and oxidizer and the larger the engine must be.
Does gravity keep the planets orbiting the sun?
Yes.
Will gravity keep a satellite in orbit forever?
Not quite. Forever is a long time! If the satellite is high enough to make air resistance irrelevant, it can stay in orbit for a long, long time. However, orbits do tend to decay eventually; an orbiting object will lose some energy through air resistance, and - in the very long term - through gravitational waves. It is also possible that an object that comes close to Earth changes the orbit of orbiting satellites.
What helps keep the planets orbiting the sun?
Gravity and Inertia
What are the 2 forces that keep planets orbiting suns?
gravity and inertia
Does the satellite requires power to revolve around the earth?
No. Once the satellite is placed in orbit, its momentum will keep it orbiting along its original path - more of less. "More or less" means: 1. The satellite may need minute adjustments to its position, so that it can photograph its intended targets (stars/planets, the earth), or can keep in contact with its intended radio/television/mobile phone services, and 2. A satellite's orbit will slowly decay, and the satellite would eventually come into the outer atmosphere, begin to slow down, and burn up as its orbit brought it into denser air. For both these reasons, satellites may use small "positioning" thrusters to steer and to regain orbital speed.
What is the functions of oils?
to keep the skin hydrated so it doesnt dry out. :) to keep the skin hydrated so it doesnt dry out. :)
Who believed that forces keep moons orbiting planets and planets orbiting the sun?
Newton- he created the law of universal gravitation, which states that all objects in the universe have gravity.
