i) What are Kepler’s laws? 

ii) What is the shape of the orbits of planets?

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1 Answers

1. The Kepler’s laws are: 

  • Kepler’s first law: The orbit of a planet is an ellipse with the Sun at one of the foci. 
  • Kepler’s second law: The line joining the planet and the Sun sweeps equal areas in equal intervals of time. 
  • Kepler’s third law: The square of orbital period of revolution of a planet around the Sun is directly proportional to the cube of the mean distance of the planet from the Sun. 

2. The orbits of the planet are elliptical in shape.

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