UNIVERSE
SATELLITESICY BODIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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planets take a long time to orbit the sun
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there is no relationship between the distance of planet from the sun and the time it takes to orbit the sun
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there is a mathematical relationship between the distance of a planet from the sun and the time it takes to orbit the sun
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every planet has the same orbital period
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Detailed explanation-1: -Kepler’s Third Law: the squares of the orbital periods of the planets are directly proportional to the cubes of the semi-major axes of their orbits. Kepler’s Third Law implies that the period for a planet to orbit the Sun increases rapidly with the radius of its orbit.
Detailed explanation-2: -(The Law of Equal Areas) The ratio of the squares of the periods of any two planets is equal to the ratio of the cubes of their average distances from the sun.
Detailed explanation-3: -Third Law. Kepler had all of Tycho’s data on the planets, so he was able to determine how long each planet took to complete one orbit around the Sun. This is usually referred to as the period of an orbit. Kepler noted that the closer a planet was to the Sun, the faster it orbited the Sun.
Detailed explanation-4: -Kepler’s third law states that, the square of time 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. Mathematically, T2∝ r3.
Detailed explanation-5: -A planet’s orbital speed changes, depending on how far it is from the Sun. The closer a planet is to the Sun, the stronger the Sun’s gravitational pull on it, and the faster the planet moves. The farther it is from the Sun, the weaker the Sun’s gravitational pull, and the slower it moves in its orbit.