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A planet is kept in its orbit because the Sun's gravitational attraction on it produces acceleration towards the Sun, which exactly balances the force, by Newton's laws of motion.
An object that is travelling along in a curved path is accelerating to the side, according to Newton's theory, and in a stable orbit this can go on for ever without the energy ever diminishing.
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∙ 8y ago
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When will planets bump into other planets?
Once the sun implodes the planets will have nothing to keep them in orbit.
Why do planets are always in orbit?
to keep gravity going
What factors keep the planets in orbit?
Gravity and inertia
What are the 2 factors that keep the planets in orbit?
Gravity and Inertia
What keep planets stay in orbit around the sun?
Inertia and gravity
What two things keep the planets in orbit?
gravity and string
What two things keep the planets in their orbit?
gravity&inertia
What 2 things keep your planets in an elliptical orbit?
Gravity and velocity (or inertia), and they aren't things. They're forces.
What two forces work together to keep the planets in orbit around the sun?
The two forces that work together to keep the planets in orbit around the sun are gravity and inertia.
When will planets bump into other planets?
Once the sun implodes the planets will have nothing to keep them in orbit.
How does the grivity effect the planets and moons?
Gravity helps to keep the planets in orbit. It also helps to keep the moon's close to the planets.
Why do planets are always in orbit?
to keep gravity going
What factors keep the planets in orbit?
Gravity and inertia
Does the suns gravity keep the planets in orbit around it?
Yeah
What are the 2 factors that keep the planets in orbit?
Gravity and Inertia
What does the sun's gravitational pull keep in orbit?
Planets, asteroids, meteors, comets, moons (which are also in orbit around their respective planets), dust particles, interplanetary gas.
Why do planets need their stars?
Planets do not technically need their respective stars, but stars keep planets in orbit and provide heat and light to the planets.
