Match each statement with the law. (Some answers may be used more than once. Som
ID: 1882840 • Letter: M
Question
Match each statement with the law. (Some answers may be used more than once. Some may not be used at all.) A Kepler's third law of planetary motion B Kepler's first law of planetary motion C Kepler's second law of planetary motion D All three of Kepler's laws combined. E None of Kepler's laws. DAccording to this law if the semimajor axis of the orbit is 8 AU's then the orbit period is 4 years. EAccording to this law the speed of a planet would be greatest when closest to the surn. This law determines the how the speed at which the planet moves on the orbit changes with time EAccording to this law planetary orbits are always circles.Explanation / Answer
(1) According to this law if the semimajor axis of the orbit is 8 AU's then the orbit period is 4 years. - Option (A) Kepler's third law of planetary motion
Explanation -
Kepler's third law states that squares of the period of any two planets is equal to the ratio of the cubes of their average distance from the sun.
(2) According to this law the speed of the planet would be greatest when closest to the sun. - Option (A) Kepler's third law.
Explanation -
Again kepler's third law because it defines the relation between the period of a satellite with respect to its distance from a star. Period is related to the speed of the satellite.
(3) This law dtermines the how the speed at which the palnet moves on the orbit changes with time - Option (C) - Kepler's second law.
Explanation -
Second law defines that planet will sweep out equal areas in equal interval of time.
(4) According to this law planetary orbits are always circles. - Option (E) None of Kepler's laws
Explanation -
According to all the three laws of Kepler's, planetary orbits are elliptical in shape.