Which force keeps the planets moving in their orbits around the Sun?
Answer and explanation
Correct answer: B. Gravitational force
- Step 1: The Sun's gravitational pull on each planet provides the force that keeps it moving in its orbit. Answer: Gravitational force. Why not the others: Magnetic and electrostatic forces are far too weak on this scale between uncharged bodies, and there is no friction in space to hold a planet in orbit.
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