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Class 11 Physics Practice Test: Gravitation - Kepler’s Laws
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Kepler's laws of planetary motion, published by Johannes Kepler between 1609 and 1619, describe the orbits of planets around the Sun.

Class 11 Physics Practice Test: Gravitation - Kepler’s Laws
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13 Questions

1. Kepler’s laws of planetary motion were proposed only for _____
2. In the figure shown, what is the point “B”, which is the farthest from the sun, called?
3. From Kepler’s law of orbit, we can infer that the sun is located _____ of the planet’s orbit.
4. Kepler’s laws of planetary motion improved ______
5. In the figure shown, what is the point “A” called?
6. What is the constant of proportionality in Kepler’s law of periods known as?
7. The elliptical orbits of planets were indicated by calculations of the orbit of which astronomical body?
8. What does Kepler’s law of period relate?
9. If the eccentricities of the planetary orbits were taken as zero, then the sun is at the centre of the orbit.
10. Kepler’s laws of planetary motion replaced circular orbits with _____
11. What is the time taken by a planet to sweep an area of 2 million square km if the time taken by the same planet to cover an area of 1 million square km is 36 hours?
12. The velocity of a planet is the greatest at perigee.
13. The velocity of a planet is constant throughout its elliptical trajectory in an orbit.

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