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Class 9 Science Chapter 10 Gravitation Quiz 1 (25 MCQs)

Quiz Instructions

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1. What is the value of the gravitational constant (G) in SI units?
2. Acceleration du to gravity on the poles is
3. If the distance between two bodies is increased by 25%, then the % change in the gravitational force is
4. The atmosphere is held to the Earth by
5. Which of the following statements about gravitational force is correct?
6. Which of the following statements is true about gravitational force?
7. The value of g also ..... we go inside the earth.
8. 4) The atmosphere consisting of a large number of gases is held to the earth by:
9. If the gravitational force between two objects is 100 N and the distance between them is doubled, what is the new gravitational force?
10. Where does an object show weightlessness
11. A stone is released from the top of a tower of height 19.6 m. Then its final velocity just before touching the ground will be:
12. The acceleration due to gravity at pole and equator can be related as:
13. When an object is fed down from one height, what will be the initial velocity of that object:when a body is dropped from a height, what is its initial velocity:
14. When a body is thrown toward the centre of earth, then acceleration due to gravity is
15. An object weighs 10 N in air. When immersed fully in water, it weighs only 8 N. The weight ofthe liquid displaced by the object will be(a) 2N (b)8N (c) 10N (d) 12N
16. The force that keeps the body in a circular path and is acting towards the center is called?
17. Mass of the earth is .....
18. The gravitational force between two objects is F. If masses of both objects are halved without changing the distance between them, then the gravitational force would become
19. 1) The Gravitation constant is denoted by which symbol?
20. Acceleration due to gravity on the surface of a planet is g/5 where g is the value on the earth. When a body is vertically thrown up on the earth, it reaches a maximum height h. If the same body is projected with the same velocity from the surface of planet, maximum height reached by it would be
21. Every object in the universe attract each other with
22. If mass is less gravitation will be
23. What states that "every object in the universe attracts every other object" ?
24. What is G
25. Law of gravitation gives the gravitational force between
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