How are the planets in the solar system moving?
Question:
2.inertia
3.magnetism
please tell me today
Answer:
The planets originally got their momentum as the solar system was formed. The disk of material that the planets where made of is known as a protoplanetary disk. It revolves around the condensing central portion of the protostar’s parent nebula. Small planetesimals, dust and gasses group together to become planets, comets and asteroids. When the protostar ignites and becomes a star, the protoplanetary disk is blown out into space by the solar wind. The remaining planets, asteroids and comets retain there angular momentum and continue to orbit the star.
Or the short answer, inertia.
Inertia.
The sun's gravity keeps them in orbit.
They are moving because there is nothing to stop them moving. It's one of Newton's laws.
Gravity is keeping them in orbit around the sun, the reason they're moving in the first place is the conservation of momentum (so none of your choices) - the disk they formed from was spinning so the planets are mirroring that spinning by orbiting the sun.
But I guess technically if we ONLY had the 3 choices you listed, the closest (though not completely correct) would be inertia - they started moving and there is nothing to stop them (Newton's First Law).
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