GK
BIG BANG THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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That Jupiter had four moons
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That the planets revolved around the earth
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That the sun was the biggest star
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That the planets move in eliptical (oval shaped) orbits around the sun
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Detailed explanation-1: -They describe how (1) planets move in elliptical orbits with the Sun as a focus, (2) a planet covers the same area of space in the same amount of time no matter where it is in its orbit, and (3) a planet’s orbital period is proportional to the size of its orbit (its semi-major axis).
Detailed explanation-2: -Through Brahe’s astronomical measurements and Kepler’s own drawings of the geometrical relationship between the Sun and Mars in various parts of the planet’s orbit, Kepler discovered that planets moved faster when they were closer to the Sun.
Detailed explanation-3: -The elliptical orbits of planets were indicated by calculations of the orbit of Mars. From this, Kepler inferred that other bodies in the Solar System, including those farther away from the Sun, also have elliptical orbits.
Detailed explanation-4: -These orbits were well defined by an astronomer Kepler. He formulated three laws which are known as Kepler’s laws of planetary motion. It states that all the planets move around the sun in orbit. These orbits are of elliptical shape having their center as sun.