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    Question

    Who enunciated the laws of planetary motion?

    A Nicolaus Copernicus Correct Answer Incorrect Answer
    B Johannes Kepler Correct Answer Incorrect Answer
    C Isaac Newton Correct Answer Incorrect Answer
    D Galileo Correct Answer Incorrect Answer

    Solution

    Kepler's laws of planetary motion are three scientific laws describing orbital motion, each giving a description of the motion of planets around the Sun. The laws are: the orbit of every planet is an ellipse with the Sun at one of the two foci; a line joining a planet and the Sun sweeps out equal areas during equal intervals of time; and the square of the orbital period of a planet is directly proportional to the cube of the semi-major axis of its orbit.

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