GK Quiz on Physics Gravitation2
Test your General Knowledge about Physics by playing this Free Online 40 Questions on Physics GK Quiz 2 Test. You can enhance your Physics GK skill through these questions and answer.
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Question 1 of 39
1. Question
1 pointsThe value of ‘g’ at a particular point is 9.8 m/sec2 suppose the earth suddenly shrink uniformly to half its present size without losing any mass. The value of ‘g at the same point (assuming that the distance of the point from the centre of the earth does not shrink) will become

Question 2 of 39
2. Question
1 pointsIf the earth is 1/4th of its present distance from the sun, the duration of the year would be

Question 3 of 39
3. Question
1 pointsAbove the surface of the earth if we go to distance equal to double the radius of the earth, the value of ‘g’ will become?

Question 4 of 39
4. Question
1 pointsThe ratio of the time periods for two satellites of equal mass in circular orbits of radii R and 9 R is

Question 5 of 39
5. Question
1 pointsIf the gravitational force between two objects were proportional to 1/R (and not as 1/R2) where R is separation between them, then a particle in circular orbit under such a force would have its orbital speed v proportional to

Question 6 of 39
6. Question
1 pointsA thief stole a box with valuable article of weight ‘W’ and jumped down a wall of height h. Before he reach the ground he experienced a load o

Question 7 of 39
7. Question
1 pointsArtificial gravity is produced in a spacecraft to?

Question 8 of 39
8. Question
1 pointsA planet is moving around the Sun in a circular orbit of circumference C. The work done on the planet by the gravitational force F of the Sun is

Question 9 of 39
9. Question
1 pointsA missile is launched with a velocity less than the escape velocity. The sum of its kinetic and potential energy is

Question 10 of 39
10. Question
1 pointsIf a body is taken from a pole to the equator its distance from the center of the earth will?

Question 11 of 39
11. Question
1 pointsThe weight of a body is the gravitational force exerted on it?

Question 12 of 39
12. Question
1 pointsKepler’s second law regarding constancy of arial velocity of a planet is a consequence of the law of conservation of

Question 13 of 39
13. Question
1 pointsIf the value of gravitational acceleration at a height h above the Earth’s surface is the same as that at a depth d below the Earth’s surface (with both h and d small compared to the Earth’s radius R), then

Question 14 of 39
14. Question
1 pointsIf the radius of the Earth were increased by a factor of 4 and its mass remained the same, then the acceleration due to gravity on the Earth would

Question 15 of 39
15. Question
1 pointsG is called

Question 16 of 39
16. Question
1 pointsThe period of a satellite in a circular orbit of radius R is T. The period of another satellite in circular orbit of radius 4R is

Question 17 of 39
17. Question
1 pointsIf the radius of the earth were to shrink by 1% its mass remaining the same, the acceleration due to gravity on the earth’s surface would

Question 18 of 39
18. Question
1 pointsThe earth is not a perfect sphere, but it bulges at the?

Question 19 of 39
19. Question
1 pointsThe earth is not a perfect sphere, but it bulges at the?

Question 20 of 39
20. Question
1 pointsIf the change in the value of g at the height h above the surface of the earth is the same as at a depth x below it, then (both x and h being much smaller than the radius of the earth)

Question 21 of 39
21. Question
1 pointsThe mean radius of the earth is R, its angular speed on its own axis is w and the acceleration due to gravity at earth’s surface is g. The cube of the radius of the orbit of a geostationary satellite will be

Question 22 of 39
22. Question
1 pointsThe escape velocity from earth is 11.2 km per sec. If a body is to be projected in a direction making an angle 45° to the vertical, then the escape velocity is

Question 23 of 39
23. Question
1 pointsIf the radius of the earth were to shrink by one percent, its mass remaining the same, the acceleration due to gravity on the earth’s surface would

Question 24 of 39
24. Question
1 pointsA satellite is revolving around the sun in a circular orbit with uniform velocity v. If the gravitational force suddenly disappears, the velocity of the satellite will be

Question 25 of 39
25. Question
1 pointsA planet has twice the radius but the mean density is 1/4th as compared to earth. What is the radio of the escape velocity from the earth to that from the planet?

Question 26 of 39
26. Question
1 pointsGeostationary satellite

Question 27 of 39
27. Question
1 pointsWho among the following first gave the experimental velocity of G?

Question 28 of 39
28. Question
1 pointsWhat would be the duration of the year if the distance between the earth and the sun gets doubled?

Question 29 of 39
29. Question
1 pointsA thin uniform, circular ring is rolling down an inclined plane of inclination 30° without slipping. Its linear acceleration along the inclined plane will be

Question 30 of 39
30. Question
1 pointsThe centripetal force acting on a satellite orbiting round the earth and the gravitational force of earth acting on the satellite both equal F. The net force on the satellite is

Question 31 of 39
31. Question
1 pointsThe masses of two planets are in the ratio 1 : 2. Their radii are in the ratio 1 : 2. The acceleration due to gravity on the planets are in the ratio.

Question 32 of 39
32. Question
1 pointsIf escape velocity from the earth’s surface is 11.2 km/sec. then escape velocity from a planet of mass same as that of earth but radius one fourth as that of earth is

Question 33 of 39
33. Question
1 pointsThe distance between centre of the earth and moon is 384000 km. If the mass of the earth is 6 ´ 1024 kg and G = 6.66 ´ 1011 Nm2/kg2. The speed of the moon is nearly

Question 34 of 39
34. Question
1 pointsWhen body is raised to a height equal to radius of earth, the P.E. change is

Question 35 of 39
35. Question
1 pointsThe escape velocity from the earth’s surface is 11 km/sec. A certain planet has a radius twice that of the earth but its mean density is the same as that of the earth. The value of the escape velocity from this planet would be

Question 36 of 39
36. Question
1 pointsThe escape velocity from the earth’s surface is 11 km/sec. A certain planet has a radius twice that of the earth but its mean density is the same as that of the earth. The value of the escape velocity from this planet would be

Question 37 of 39
37. Question
1 pointsIf the acceleration due to gravity of a planet is half the acceleration due to gravity of earth’s surface and radius of planet is half the radius of the earth, the mass of planet in terms of mass of earth is

Question 38 of 39
38. Question
1 pointsThe radii of the earth and the moon are in the ratio 10 : 1 while acceleration due to gravity on the earth’s surface and moon’s surface are in the ratio 6 : 1. The ratio of escape velocities from earth’s surface to that of moon surface is

Question 39 of 39
39. Question
1 pointsTwo identical solid copper spheres of radius R placed in contact with each other. The gravitational attracton between them is proportional to
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