What are the effects of force acting on an object?
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What are the type of forces you are familiar with?
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What do you mean by gravitational force?
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What are Newton's law of motion?
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Distinguish between centripetal and centrifugal force.
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State kepler's first law of motion with the help of diagram.
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State and explain kepler's second law.
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Write a kepler's third law and derive it.
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Newton gave universal law of gravitation.
State Newton's law of gravitation.
Write the mathematical equation for the gravitation.
What is the value of G?
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10. How did Newton derive inverse square law of gravitation with the help of kepler's third law.
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11. Mahendra and Virat are sitting at a distance of 1 m from each other. Their masses are 75 kg and 80 kg respectively. What is the gravitational force between them?
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12. What is escape velocity?
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13. Write three equations of motion.
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14. The value of acceleration due to gravity is more at the pole then the Equator. Give reason
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15. When we drop feather and a stone at the same time from a height, the stone reach Faster than feather. Give reason.
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16. Rahul's mass on the earth is 45 kg,
What will be his mass on moon ? Why?
Calculate his weight on Earth.
Calculate his weight on moon, knowing that acceleration due to gravity on moon is ⅙ th of that on earth.
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18. Deduce the formula for acceleration due to gravity on earth.
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