Q. The orbits of planets around the Sun, or of satellites around the Earth, can be ________

  • (A) Circular and elliptic
  • (B) Circular and hyperbolic
  • (C) Elliptic and parabolic
  • (D) Parabolic and hyperbolic
βœ… Correct Answer: (A) Circular and elliptic
Explanation: All the planets are satellites around the Sun. Almost every ship launched from Earth can be considered a satellite, as it is orbiting either the Earth or the Sun. Even though a space probe is going "out" from the Earth to Jupiter, it is still in orbit around the Sun, so it is still a satellite. It is certainly possible to set up a satellite so that it has a circular orbit (a circle is just an ellipse whose foci coincide). Gravity can only pull in the direction toward the planet.
Explanation by: Rohan Raj
All the planets are satellites around the Sun. Almost every ship launched from Earth can be considered a satellite, as it is orbiting either the Earth or the Sun. Even though a space probe is going "out" from the Earth to Jupiter, it is still in orbit around the Sun, so it is still a satellite. It is certainly possible to set up a satellite so that it has a circular orbit (a circle is just an ellipse whose foci coincide). Gravity can only pull in the direction toward the planet.

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