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None do. If the forces on a planet were balanced, then it would take off in
a straight line at constant speed, not remain in orbit. The only force acting
on a planet is the gravitational one, that attracts the planet toward the sun.
Fortunately, that's the only force required to keep the planet in orbit.
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∙ 10y ago
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These forces keep the planets and other heavenly bodies to stay in their orbits?
Gravitatonal pull
What two factors keep the planets moving in elliptical orbits and determine how fast they orbit?
The main factors are the masses of the Sun and planets, the forces of gravity between them, and the existing rotation (angular momentum) in the system. The forward speed of the planets and their inertia prevent them from falling in towards the sun where the gravitational force comes from, so they continue on their path and just curve in towards the sun continuously under effect of the force, just like if you threw a ball fast enough it would curve downwards as fast as the horizon curved down under it.
Suns gravity keeps what in an oval shaped orbit?
The sun does not "keep" the planets in an ellipse orbit but only that it is so because the odds of a celestial body having a perfectly circular orbit are very small. But yes all the planets do have ellipticall orbits of varying eccintricities. There are laws that govern planetary orbits devised by Johannes Kepler. For more info look up Johannes Kelper's Laws of Plantery Orbits.
Is it true that the sun's gravity keeps planets in their orbits?
Yes, the gravity of the sun causes all celestial bodies to orbit around.
What force keep the planets in motion?
Inertia is the force that causes planets to move in a straight line. The gravity of a more massive body, such as the sun, causes them to fall into orbit instead of continuing in a straight line.
List two factors that Newton showed combined to keep the planets in their elliptical orbits?
gravity and inertia
How does gravity keep planets and other objects in the Solar System in orbits?
easy gravity :)
These forces keep the planets and other heavenly bodies to stay in their orbits?
Gravitatonal pull
How can the planets orbit the sun?
It is the natural tendency for an object in motion to keep moving at the same speed in a straight line. Meanwhile gravity is trying to pull each planet toward the sun. The two forces combine to keep the planets in their elliptical orbits. They have enough forward momentum to keep them from falling into the sun, and they have enough pull from the sun to keep them from following a straight path out of the solar system.
What 2 forces combine to keep a planet in orbit?
There are two factors; the tangential velocity, and the gravitational force. The planets have a tangential velocity, they are speeding along sideways relative to the sun. If there was no gravity, this velocity would take the planets away from the sun, but the sun has a huge gravitational force which counteracts this effect. The suns gravitational force is constantly attracting the planets in, against this tangential velocity. If the planets were to slow down, then they would eventually spiral into the sun, but in space there is no drag, so the planets maintain their speed and their orbits.
What factors keep the planets in orbit?
Gravity and inertia
What keeps a planet in its constant orbit?
There are two factors that are balanced just right to keep the planets in their orbits; the tangential velocity, and the gravity. The planets have a tangential velocity, they are speeding along sideways relative to the sun. If there was no gravity, this velocity would take the planets away from the sun, but the sun has a huge gravitational force which counteracts this effect. The suns gravitational force is constantly attracting the planets in, against this tangential velocity. If the planets were to slow down, then they would eventually spiral into the sun, but in space there is no drag, so the planets maintain their speed and their orbits.
What are the 2 factors that keep the planets in orbit?
Gravity and Inertia
What conditions is experienced when the moon and the planets of the solar system are kept in their orbit?
This question is nonsense. There is no need to "keep" the moon and planets in their orbits; the laws of physics ensure they stay there. The "conditions"... well, look around you. They're in their orbits now, so the current "conditions" must be the ones which apply when they are.
What two factors act to keep the planets in orbit around the sun?
definetly Gravity and Inertia
How does gravity affect the relationship between the sun and the planets?
Yes. It keeps the planets in orbit around the Sun.
What two factors keep the planets moving in elliptical orbits and determine how fast they orbit?
The main factors are the masses of the Sun and planets, the forces of gravity between them, and the existing rotation (angular momentum) in the system. The forward speed of the planets and their inertia prevent them from falling in towards the sun where the gravitational force comes from, so they continue on their path and just curve in towards the sun continuously under effect of the force, just like if you threw a ball fast enough it would curve downwards as fast as the horizon curved down under it.
