UNIVERSE
SOLAR SYSTEM FORMATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Yes, the planets have changed positions
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Yes, and they are STILL moving!
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No, the planets stayed where they formed
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No, planets are too big to move
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Detailed explanation-1: -Yes. The speed at which a planet orbits the Sun changes depending upon how far it is from the Sun. When a planet is closer to the Sun the Sun’s gravitational pull is stronger, so the planet moves faster.
Detailed explanation-2: -A planet’s orbital speed changes, depending on how far it is from the Sun. The closer a planet is to the Sun, the stronger the Sun’s gravitational pull on it, and the faster the planet moves. The farther it is from the Sun, the weaker the Sun’s gravitational pull, and the slower it moves in its orbit.
Detailed explanation-3: -If not for gravity, planets, moons, and other objects would travel in straight-line paths.
Detailed explanation-4: -In the everyday world, gravity is the force that makes objects fall downward. In astronomy, gravity is also the force that causes planets to move in near-circular orbits around stars.
Detailed explanation-5: -Since the sun has a greater mass, it has a greater gravitational force that attracts the bodies with lesser masses. In addition, gravity produces the centripetal force, which is the inward pull that prevents the planets from moving out of their orbits.