X PHYSICS
UNIT-II
OUR UNIVERSE-GRAVITATION
1. Acceleration due to gravity is inversely proportional to _________________
2. The radius of the earth at poles _________________
3. The radius of the earth at equator is _________________
4. The value of acceleration due to gravity at poles is _________________
5. The value of acceleration due to gravity at Equator is _________________
6. As we move upwards from the surface of the earth the value of ‘g’ _________________
7. At a height equal to half the radius of the earth the value of acceleration due to gravity is _________________
8. As we move deep inside the earth the value of acceleration due to gravity ____________
9. At a depth equal to radius of the earth the value of ‘g’ is _________________
10. The quantity of matter contained in a body is called its _________________
11. Mass of a body is a _________________quantity.
12. Mass m= _________________
13. C.G.S unit of mass is _________________
14. M.K.S unit of mass is _________________
15. Mass of a body is measured with _________________
16. The gravitational force acting on a body of certain mass is called _________________
17. Weight of a body is a _________________quantity
18. C.G.S unit of weight is _________________
19. M.K.S unit weight is _________________
20. Weight w=_________________
21. Weight of a body is measured with _________________
22. Weight of body _________________from place to place.
23. Weight of a body at the centre of the earth is _________________
24. Weight of a body is _________________at poles.
25. Weight of a body is _________________at equator.
26. The weight of a body on the moon is _________________of its weight on the earth.
27. The gravitational force acting on a body of mass 1kg is called _________________
28. 1kg wt = _________________newtons.
29. Spring balance works on the principle of _________________
30. The graph draw between force and expansion is called _________________
31. Ptolemaic theory is also known as __________________.
32. Unit of universal gravitational constant is ___________.
33. Acceleration due to gravity decreases with ___________ and increases with ___________.
34. The mass of the body is ___________ anywhere in the universe.
35. The law of gravitation holds every where in the ___________.
36. The gravitational force with which the earth attracts the moon is more than the force with which the moon attracts the ________________
37. The weight of 400 gm stone is ___________.
38. In S.I. system unit of force is ___________.
39. The numerical value of G is found to be ___________.
40. Mass (M) of earth is ___________.
41. The value of ‘g’ on the moon is ___________.
42. The force that keeps the planets in their orbits is the ___________ of the sun.
43. At a height equal to half of the radius of the earth, acceleration due to gravity approaches ___________.
44. The moon makes one revolution about the earth in ___________ days.
45. The basis of Newton’s law of universal gravitation is ___________.
46. The path of a planet around the sun is ___________.
47. The value of ‘g’ at the equator is ___________.
48. The value of ‘g’ at the poles is minimum due to ___________ of the earth.
49. Since ‘r’ is maximum at the equator, the value of g becomes ___________.
50. The instrument used to measure small changes in the value of ‘g’ at a given location is called _____.
51. The mass of a body is the ___________ of matter contained in it.
52. The general force of attraction between any two bodies is called ______________.
53. Weight of a body ___________ from place to place.
54. The product of mass of a body and the acceleration due to gravity is equal to____ of a body.
55. 1 kilogram weight is equal to ___________.
56. Hooke’s law helps in the determination of the ___________ of the body.
57. The Calibration graph may be used to measure the ___________ of the body.
58. Hooke’s law gives the relation between extension in _____ of a spring and force acting on it.
59. The gravitational force on a stone of mass 10 kg is ___________.
60. Acceleration due to gravity is independent of the ___________ of body.
X PHYSICS(key)
UNIT-II
OUR UNIVERSE-GRAVITATION
(1)radius of the planet (2)minimum (3)maximum (4)maximum (5)minimum (6)decreases (7)zero (8)decreases (9)zero (10)mass (11)scalar (12)f/a (13)gram (14)kilogram (15)common balance (16)weight (17)vector (18)gram. wt (19)kg. wt (20)mg (21)spring balance (22)changes (23)zero (24)maximum (25)minimum (26)1/6th (27)1 kg. wt (28)9.8 (29)Hooke’s law (30)calibration graph
(31) Geocentric theory (32) Nm2/Kg2 (33) height, depth (34) same (35) Universe (36) earth (37) 3.92 N (38) Newton (39) 6.67 x 10-11 (40) 6 x 1024kg (41) 1.67 m/s2 (42) gravitational force (43) zero (44) 27.3 (45) Kepler’s laws (46)elliptical (47) minimum (48) flattering (49) minimum (50) gravity meter (51) quanity (52) gravitational force (53) changes (54) weight (55) 9.8 Newtons (56) weight (67) weight (58) length (59) 98 Newtons (60) mass.
