{"id":16437,"date":"2025-11-07T07:24:36","date_gmt":"2025-11-07T07:24:36","guid":{"rendered":"https:\/\/mcqsadda.com\/?p=16437"},"modified":"2025-11-10T09:29:46","modified_gmt":"2025-11-10T09:29:46","slug":"gravitation-top-100-mcqs-with-answer-and-explanation-2","status":"publish","type":"post","link":"https:\/\/mcqsadda.com\/index.php\/2025\/11\/07\/gravitation-top-100-mcqs-with-answer-and-explanation-2\/","title":{"rendered":"Gravitation Top 100 MCQs With Answer and Explanation"},"content":{"rendered":"\n

1. Who gave the universal law of gravitation?<\/strong><\/mark>
a) Newton
b) Kepler
c) Galileo
d) Einstein
Answer:<\/strong> a
Explanation:<\/strong> Isaac Newton proposed the universal law of gravitation which states that every object attracts every other object in the universe.<\/p>\n\n\n\n

2. Gravitation is always a ___ force.<\/mark><\/strong>
a) Repulsive
b) Attractive
c) Neutral
d) Magnetic
Answer:<\/strong> b
Explanation:<\/strong> Gravitational force always attracts two masses towards each other.<\/p>\n\n\n\n

3. Which force is responsible for keeping the Earth in orbit around the Sun?
<\/mark><\/strong>a) Magnetic force
b) Electric force
c) Gravitational force
d) Centrifugal force
Answer:<\/strong> c
Explanation:<\/strong> The gravitational pull of the Sun keeps the Earth in its orbit.<\/p>\n\n\n\n

4. The acceleration due to gravity on the surface of the Earth is approximately ___ m\/s\u00b2.
<\/mark><\/strong>a) 8.9
b) 9.8
c) 10.8
d) 12.5
Answer:<\/strong> b
Explanation:<\/strong> On Earth, the average acceleration due to gravity is about 9.8 m\/s\u00b2.<\/p>\n\n\n\n

5. What happens to gravitational force when the distance between two objects increases?
<\/strong><\/mark>a) It increases
b) It decreases
c) It remains constant
d) It becomes repulsive
Answer:<\/strong> b
Explanation:<\/strong> Gravitational force decreases when distance increases.<\/p>\n\n\n\n

6. The Earth attracts the Moon due to ___.
<\/strong><\/mark>a) Magnetic force
b) Gravitational force
c) Centripetal force
d) Centrifugal force
Answer:<\/strong> b
Explanation:<\/strong> The gravitational attraction between Earth and Moon keeps the Moon in orbit.<\/p>\n\n\n\n

7. The force that keeps planets in orbit around the Sun is called ___.
<\/mark><\/strong>a) Magnetic force
b) Electrostatic force
c) Gravitational force
d) Nuclear force
Answer:<\/strong> c
Explanation:<\/strong> The Sun\u2019s gravity provides the centripetal force for the planetary orbits.<\/p>\n\n\n\n

8. The weight of a body is maximum at the ___.
<\/strong><\/mark>a) Equator
b) Poles
c) Center of Earth
d) Tropics
Answer:<\/strong> b
Explanation:<\/strong> Gravity is slightly stronger at the poles due to the Earth\u2019s shape.<\/p>\n\n\n\n

9. Weight of an object is ___.
<\/mark><\/strong>a) Same everywhere
b) Force with which Earth attracts it
c) Constant for all planets
d) Its resistance to motion
Answer:<\/strong> b
Explanation:<\/strong> Weight is the gravitational pull of Earth on the object.<\/p>\n\n\n\n

10. Which of the following does not affect the gravitational force between two bodies?
<\/mark><\/strong>a) Mass of the bodies
b) Distance between them
c) Medium between them
d) None of these
Answer:<\/strong> c
Explanation:<\/strong> Gravitational force is independent of the medium between the objects.<\/p>\n\n\n\n

11. The path of planets around the Sun is ___.
<\/mark><\/strong>a) Circular
b) Elliptical
c) Parabolic
d) Irregular
Answer:<\/strong> b
Explanation:<\/strong> According to Kepler, planets move in elliptical orbits with the Sun at one focus.<\/p>\n\n\n\n

12. Who formulated the three laws of planetary motion?
<\/mark><\/strong>a) Kepler
b) Newton
c) Copernicus
d) Galileo
Answer:<\/strong> a
Explanation:<\/strong> Johannes Kepler discovered the three laws governing planetary motion.<\/p>\n\n\n\n

13. The force that pulls objects toward the center of the Earth is called ___.
<\/mark><\/strong>a) Magnetism
b) Friction
c) Gravity
d) Pressure
Answer:<\/strong> c
Explanation:<\/strong> Gravity is the attractive force exerted by Earth on all objects.<\/p>\n\n\n\n

14. The value of gravity on the Moon is about __ fraction of that on Earth.
<\/mark><\/strong>a) One-third
b) One-fourth
c) One-sixth
d) One-half
Answer:<\/strong> c
Explanation:<\/strong> The Moon\u2019s gravitational acceleration is about one-sixth that of Earth\u2019s.<\/p>\n\n\n\n

15. The Earth\u2019s gravity is weakest at the ___.
<\/mark><\/strong>a) Poles
b) Equator
c) Center
d) Tropic of Cancer
Answer:<\/strong> b
Explanation:<\/strong> Due to Earth\u2019s rotation and bulge at the equator, gravity is slightly weaker there.<\/p>\n\n\n\n

16. A body weighs less at the equator than at the poles because of ___.
<\/mark><\/strong>a) Earth’s magnetic field
b) Earth\u2019s rotation
c) Difference in temperature
d) Difference in altitude
Answer:<\/strong> b
Explanation:<\/strong> The centrifugal force due to rotation reduces the effective gravity at the equator.<\/p>\n\n\n\n

17. The gravitational force acts between ___.
<\/mark><\/strong>a) Two masses
b) Two charges
c) Two magnets
d) A mass and a charge
Answer:<\/strong> a
Explanation:<\/strong> Gravitation is a force of attraction between any two masses.<\/p>\n\n\n\n

18. Gravitational force between two bodies depends directly on ___.
<\/mark><\/strong>a) Their distance
b) Their masses
c) Their volumes
d) Their shapes
Answer:<\/strong> b
Explanation:<\/strong> The force increases with the product of their masses.<\/p>\n\n\n\n

19. The weight of an astronaut in space is ___.
<\/mark><\/strong>a) Zero
b) Half
c) Equal to Earth
d) Double
Answer:<\/strong> a
Explanation:<\/strong> In orbit, astronauts experience weightlessness due to free fall.<\/p>\n\n\n\n

20. The gravitational pull of Earth is strongest at the ___.
<\/mark><\/strong>a) Surface
b) Center
c) Poles
d) Equator
Answer:<\/strong> c
Explanation:<\/strong> Gravity is slightly stronger at the poles because of Earth\u2019s flattened shape.<\/p>\n\n\n\n

21. The cause of tides in oceans is mainly ___.
<\/mark><\/strong>a) Wind pressure
b) Moon\u2019s gravity
c) Earth\u2019s rotation
d) Sunlight
Answer:<\/strong> b
Explanation:<\/strong> The Moon\u2019s gravitational pull causes periodic rise and fall in sea levels.<\/p>\n\n\n\n

22. Gravitational force is the weakest of all ___.
<\/mark><\/strong>a) Natural forces
b) Nuclear forces
c) Electromagnetic forces
d) Mechanical forces
Answer:<\/strong> a
Explanation:<\/strong> Gravitation is the weakest among the fundamental forces in nature.<\/p>\n\n\n\n

23. A person will weigh more on which planet?
<\/mark><\/strong>a) Earth
b) Mars
c) Jupiter
d) Moon
Answer:<\/strong> c
Explanation:<\/strong> Jupiter\u2019s gravity is much stronger due to its large mass.<\/p>\n\n\n\n

24. The tendency of a body to resist change in motion is called ___.
<\/mark><\/strong>a) Gravity
b) Inertia
c) Friction
d) Momentum
Answer:<\/strong> b
Explanation:<\/strong> Inertia is related to mass, which also affects gravitational attraction.<\/p>\n\n\n\n

25. The body that has the strongest gravity in our solar system is ___.
<\/mark><\/strong>a) Earth
b) Jupiter
c) Sun
d) Saturn
Answer:<\/strong> c
Explanation:<\/strong> The Sun, being the most massive, has the strongest gravitational field.<\/p>\n\n\n\n

26. Which scientist discovered the law of universal gravitation?<\/mark><\/strong>
a) Kepler
b) Galileo
c) Newton
d) Copernicus
Answer:<\/strong> c) Newton
Explanation:<\/strong> Sir Isaac Newton proposed the law of universal gravitation explaining that every object attracts every other object in the universe.<\/p>\n\n\n\n

27. The force of gravity acts between<\/mark><\/strong>
a) Earth and the Moon only
b) Any two masses
c) Only planets and the Sun
d) Electrically charged bodies
Answer:<\/strong> b) Any two masses
Explanation:<\/strong> Gravitational force is a universal force that acts between all objects having mass.<\/p>\n\n\n\n

28. Which of the following is the weakest force in nature?<\/mark><\/strong>
a) Strong nuclear force
b) Weak nuclear force
c) Electromagnetic force
d) Gravitational force
Answer:<\/strong> d) Gravitational force
Explanation:<\/strong> Gravitational force is the weakest among all fundamental forces of nature.<\/p>\n\n\n\n

29. The acceleration due to gravity is least at<\/mark><\/strong>
a) Poles
b) Equator
c) Center of the Earth
d) Surface of the Moon
Answer:<\/strong> b) Equator
Explanation:<\/strong> Due to Earth\u2019s rotation and its equatorial bulge, gravity is slightly less at the equator than at the poles.<\/p>\n\n\n\n

30. The acceleration due to gravity is maximum at<\/mark><\/strong>
a) Equator
b) Poles
c) Tropic of Cancer
d) Tropic of Capricorn
Answer:<\/strong> b) Poles
Explanation:<\/strong> Gravity is strongest at the poles because of the Earth\u2019s flattened shape and smaller radius there.<\/p>\n\n\n\n

31. The value of gravity decreases as we<\/mark><\/strong>
a) Move towards poles
b) Move upwards from Earth\u2019s surface
c) Move towards the center
d) Move towards equator
Answer:<\/strong> b) Move upwards from Earth\u2019s surface
Explanation:<\/strong> Gravitational attraction decreases with increase in altitude.<\/p>\n\n\n\n

32. The gravitational force between two objects depends on<\/mark><\/strong>
a) Their masses and distance between them
b) Only their masses
c) Only the distance between them
d) Their volumes
Answer:<\/strong> a) Their masses and distance between them
Explanation:<\/strong> Force of gravitation increases with mass and decreases with distance.<\/p>\n\n\n\n

33. The Earth attracts objects towards its center because of<\/mark><\/strong>
a) Magnetic force
b) Gravitational force
c) Electrostatic force
d) Frictional force
Answer:<\/strong> b) Gravitational force
Explanation:<\/strong> Gravitational pull of the Earth acts towards its center.<\/p>\n\n\n\n

34. The gravitational force is always<\/mark><\/strong>
a) Attractive
b) Repulsive
c) Both
d) Zero
Answer:<\/strong> a) Attractive
Explanation:<\/strong> Gravity always attracts objects towards each other.<\/p>\n\n\n\n

35. The motion of the Moon around the Earth is due to<\/mark><\/strong>
a) Centripetal force provided by gravity
b) Centrifugal force
c) Magnetic force
d) Electrostatic force
Answer:<\/strong> a) Centripetal force provided by gravity
Explanation:<\/strong> Earth\u2019s gravity provides the centripetal force keeping the Moon in orbit.<\/p>\n\n\n\n

36. Weight of an object is<\/mark><\/strong>
a) Same everywhere
b) Depends on location
c) Always constant
d) Independent of gravity
Answer:<\/strong> b) Depends on location
Explanation:<\/strong> Weight changes with gravitational acceleration, which varies with altitude and latitude.<\/p>\n\n\n\n

37. The gravitational force on the Moon\u2019s surface is<\/mark><\/strong>
a) Same as Earth
b) About one-sixth of Earth\u2019s
c) Twice that of Earth
d) Negligible
Answer:<\/strong> b) About one-sixth of Earth\u2019s
Explanation:<\/strong> The Moon\u2019s smaller mass and radius cause weaker gravitational pull.<\/p>\n\n\n\n

38. If mass of an object increases, gravitational attraction<\/mark><\/strong>
a) Increases
b) Decreases
c) Remains same
d) Becomes zero
Answer:<\/strong> a) Increases
Explanation:<\/strong> Gravity is directly proportional to mass.<\/p>\n\n\n\n

39. When distance between two objects doubles, gravitational force<\/mark><\/strong>
a) Becomes one-fourth
b) Becomes half
c) Becomes double
d) Remains same
Answer:<\/strong> a) Becomes one-fourth
Explanation:<\/strong> Force decreases rapidly with increasing distance.<\/p>\n\n\n\n

40. The planets remain in their orbits due to<\/mark><\/strong>
a) Magnetic forces
b) Gravitational attraction of the Sun
c) Electric attraction
d) Air pressure
Answer:<\/strong> b) Gravitational attraction of the Sun
Explanation:<\/strong> Sun\u2019s gravity keeps planets in their orbits.<\/p>\n\n\n\n

41. The weight of an astronaut in space is<\/mark><\/strong>
a) Same as on Earth
b) More than on Earth
c) Zero
d) Half of Earth weight
Answer:<\/strong> c) Zero
Explanation:<\/strong> In orbit, astronauts experience weightlessness due to free fall around Earth.<\/p>\n\n\n\n

42. Weightlessness is experienced when<\/mark><\/strong>
a) There is no gravity
b) Only gravity acts
c) Gravitational pull is balanced by motion
d) Gravity increases
Answer:<\/strong> c) Gravitational pull is balanced by motion
Explanation:<\/strong> In free fall, both body and object fall together, causing weightlessness.<\/p>\n\n\n\n

43. The force that keeps satellites in orbit is<\/mark><\/strong>
a) Gravitational
b) Magnetic
c) Centrifugal
d) Electrical
Answer:<\/strong> a) Gravitational
Explanation:<\/strong> Satellites orbit due to the Earth\u2019s gravitational pull providing centripetal force.<\/p>\n\n\n\n

44. The gravitational pull of the Earth is responsible for<\/mark><\/strong>
a) Ocean tides
b) Winds
c) Sunlight
d) Earthquakes
Answer:<\/strong> a) Ocean tides
Explanation:<\/strong> Tides are mainly due to gravitational attraction of the Moon and Sun.<\/p>\n\n\n\n

45. The Sun\u2019s gravity acts on<\/mark><\/strong>
a) Only Earth
b) All planets
c) Only big planets
d) None
Answer:<\/strong> b) All planets
Explanation:<\/strong> The Sun\u2019s gravity holds all planets in their respective orbits.<\/p>\n\n\n\n

46. Gravity causes objects to<\/mark><\/strong>
a) Float
b) Fall towards the Earth
c) Stay at rest
d) Move sideways
Answer:<\/strong> b) Fall towards the Earth
Explanation:<\/strong> Gravity pulls all objects toward the Earth\u2019s center.<\/p>\n\n\n\n

47. Gravitational force is directly proportional to<\/mark><\/strong>
a) Mass of objects
b) Square of distance
c) Area
d) Volume
Answer:<\/strong> a) Mass of objects
Explanation:<\/strong> Larger masses exert greater gravitational pull.<\/p>\n\n\n\n

48. When you go to the Moon, your<\/mark><\/strong>
a) Mass increases
b) Weight decreases
c) Weight increases
d) Mass decreases
Answer:<\/strong> b) Weight decreases
Explanation:<\/strong> Gravity is weaker on the Moon, so weight decreases though mass remains constant.<\/p>\n\n\n\n

49. The shape of Earth is<\/mark><\/strong>
a) Perfect sphere
b) Oblate spheroid
c) Flat disk
d) Elliptical
Answer:<\/strong> b) Oblate spheroid
Explanation:<\/strong> Due to rotation, Earth is slightly flattened at poles and bulged at equator.<\/p>\n\n\n\n

50. Gravitational force between two objects is<\/mark><\/strong>
a) Mutual
b) One-sided
c) Zero
d) Negligible
Answer:<\/strong> a) Mutual
Explanation:<\/strong> Both objects attract each other with equal force in opposite directions.<\/p>\n\n\n\n

51. The gravity of Earth is due to its<\/mark><\/strong>
a) Rotation
b) Magnetic field
c) Mass
d) Atmosphere
Answer:<\/strong> c) Mass
Explanation:<\/strong> The mass of Earth causes it to exert gravitational pull.<\/p>\n\n\n\n

52. The unit of weight is same as that of<\/mark><\/strong>
a) Mass
b) Force
c) Pressure
d) Energy
Answer:<\/strong> b) Force
Explanation:<\/strong> Weight is a force, measured in newtons.<\/p>\n\n\n\n

53. Gravity affects<\/mark><\/strong>
a) Only heavy objects
b) All objects equally
c) Only gaseous bodies
d) Only light objects
Answer:<\/strong> b) All objects equally
Explanation:<\/strong> Gravity acts on all masses regardless of composition.<\/p>\n\n\n\n

54. The Earth\u2019s gravity helps in<\/mark><\/strong>
a) Maintaining atmosphere
b) Causing rainfall
c) Reflecting sunlight
d) Reducing temperature
Answer:<\/strong> a) Maintaining atmosphere
Explanation:<\/strong> Gravity holds atmospheric gases around the Earth.<\/p>\n\n\n\n

55. The orbital motion of a satellite depends on<\/mark><\/strong>
a) Gravitational pull
b) Air resistance
c) Temperature
d) Sunlight
Answer:<\/strong> a) Gravitational pull
Explanation:<\/strong> Gravity provides the centripetal force needed for orbit.<\/p>\n\n\n\n

56. If there were no gravity,<\/mark><\/strong>
a) We would fly off the Earth
b) We would become heavier
c) Oceans would rise
d) Sun would expand
Answer:<\/strong> a) We would fly off the Earth
Explanation:<\/strong> Gravity keeps everything anchored to Earth.<\/p>\n\n\n\n

57. The gravitational pull between two objects decreases when<\/mark><\/strong>
a) Distance increases
b) Distance decreases
c) Mass increases
d) Both are equal
Answer:<\/strong> a) Distance increases
Explanation:<\/strong> Force weakens as distance between objects increases.<\/p>\n\n\n\n

58. What causes the Moon to move around the Earth?<\/mark><\/strong>
a) Gravitational attraction
b) Air pressure
c) Solar radiation
d) Rotation of Earth
Answer:<\/strong> a) Gravitational attraction
Explanation:<\/strong> Earth\u2019s gravity pulls the Moon, keeping it in orbit.<\/p>\n\n\n\n

59. On the Moon, a ball thrown upward returns slowly because<\/mark><\/strong>
a) Gravity is weaker
b) Air resistance is high
c) No air pressure
d) It is farther from Earth
Answer:<\/strong> a) Gravity is weaker
Explanation:<\/strong> The Moon\u2019s low gravity reduces acceleration on falling objects.<\/p>\n\n\n\n

60. The weight of an object is maximum at<\/mark><\/strong>
a) Poles
b) Equator
c) Moon
d) Center of Earth
Answer:<\/strong> a) Poles
Explanation:<\/strong> Gravity is strongest at poles due to smaller radius.<\/p>\n\n\n\n

61. The gravitational pull of the Earth is directed<\/mark><\/strong>
a) Outward from the surface
b) Tangential to the surface
c) Toward the center of the Earth
d) Parallel to the surface
Answer:<\/strong> c) Toward the center of the Earth
Explanation:<\/strong> Gravity always acts toward the Earth\u2019s center.<\/p>\n\n\n\n

62. The cause of the falling of an apple from a tree is<\/mark><\/strong>
a) Magnetic force
b) Gravitational force
c) Frictional force
d) Electric force
Answer:<\/strong> b) Gravitational force
Explanation:<\/strong> Newton\u2019s observation of a falling apple led to the discovery of gravitation.<\/p>\n\n\n\n

63. The gravitational attraction between two objects depends on<\/strong>
<\/mark>a) Their charges
b) Their masses and distance
c) Their speeds
d) Their temperature
Answer:<\/strong> b) Their masses and distance
Explanation:<\/strong> Heavier masses attract more strongly, and the attraction decreases with distance.<\/p>\n\n\n\n

64. The Moon does not fall on the Earth because<\/mark><\/strong>
a) No gravity acts in space
b) It is moving in orbit
c) The Earth repels it
d) The Moon is weightless
Answer:<\/strong> b) It is moving in orbit
Explanation:<\/strong> The Moon\u2019s velocity balances Earth\u2019s gravity, keeping it in orbit.<\/p>\n\n\n\n

65. Gravity acts over<\/mark><\/strong>
a) Short range
b) Medium range
c) Infinite range
d) Limited range
Answer:<\/strong> c) Infinite range
Explanation:<\/strong> Gravitational force acts between any two masses, no matter how far apart.<\/p>\n\n\n\n

66. The force which keeps the planets revolving around the Sun is<\/strong>
<\/mark>a) Centrifugal force
b) Gravitational force
c) Magnetic force
d) Nuclear force
Answer:<\/strong> b) Gravitational force
Explanation:<\/strong> Sun\u2019s gravity provides the necessary centripetal force for revolution.<\/p>\n\n\n\n

67. The term \u201cweightless\u201d means<\/strong>
<\/mark>a) No gravity
b) No contact with ground
c) No sensation of weight
d) No mass
Answer:<\/strong> c) No sensation of weight
Explanation:<\/strong> In free fall, both object and person accelerate equally, feeling weightless.<\/p>\n\n\n\n

68. The gravitational pull of Earth on Moon is<\/strong>
<\/mark>a) Equal to Moon\u2019s pull on Earth
b) Greater than Moon\u2019s pull
c) Lesser than Moon\u2019s pull
d) Zero
Answer:<\/strong> a) Equal to Moon\u2019s pull on Earth
Explanation:<\/strong> According to Newton\u2019s third law, both bodies attract each other equally.<\/p>\n\n\n\n

69. Tides in the oceans are primarily caused by<\/strong>
<\/mark>a) Earth\u2019s rotation
b) Moon\u2019s gravity
c) Sun\u2019s radiation
d) Wind pressure
Answer:<\/strong> b) Moon\u2019s gravity
Explanation:<\/strong> The Moon\u2019s gravitational pull causes periodic rise and fall in sea levels.<\/p>\n\n\n\n

70. The value of gravity on Earth varies slightly because<\/strong>
<\/mark>a) Earth is not a perfect sphere
b) Earth is hollow
c) Oceans affect it
d) It changes daily
Answer:<\/strong> a) Earth is not a perfect sphere
Explanation:<\/strong> Due to its oblate shape, gravity is stronger at poles and weaker at equator.<\/p>\n\n\n\n

71. A man feels his weight less in an elevator when<\/strong>
<\/mark>a) It moves upward
b) It moves downward
c) It stops
d) It moves uniformly
Answer:<\/strong> b) It moves downward
Explanation:<\/strong> In downward motion, the normal force decreases, making the person feel lighter.<\/p>\n\n\n\n

72. The gravitational force is<\/strong>
<\/mark>a) Attractive only
b) Repulsive only
c) Both
d) Zero
Answer:<\/strong> a) Attractive only
Explanation:<\/strong> Gravity always pulls objects together.<\/p>\n\n\n\n

73. The center of mass of the Earth is also the<\/strong>
<\/mark>a) North Pole
b) Center of gravity
c) Equator
d) South Pole
Answer:<\/strong> b) Center of gravity
Explanation:<\/strong> The center of gravity and center of mass coincide for symmetrical bodies like Earth.<\/p>\n\n\n\n

74. Gravity helps in<\/strong>
<\/mark>a) Formation of stars and planets
b) Dissolving gases
c) Creating heat
d) Destroying galaxies
Answer:<\/strong> a) Formation of stars and planets
Explanation:<\/strong> Gravity pulls matter together during the formation of celestial bodies.<\/p>\n\n\n\n

75. The Sun\u2019s gravity is responsible for<\/strong>
<\/mark>a) Earth\u2019s day and night
b) Revolution of planets
c) Ocean tides
d) Earth\u2019s rotation
Answer:<\/strong> b) Revolution of planets
Explanation:<\/strong> The Sun\u2019s massive gravity keeps all planets in orbit.<\/p>\n\n\n\n

76. Which one of the following does not experience gravity?<\/strong>
<\/mark>a) Light
b) Air
c) Water
d) Rock
Answer:<\/strong> a) Light
Explanation:<\/strong> Light has no mass but can be bent by gravity, not pulled directly like matter.<\/p>\n\n\n\n

77. The gravitational pull of the Sun is strongest because<\/strong>
<\/mark>a) It is hot
b) It has huge mass
c) It rotates fast
d) It emits light
Answer:<\/strong> b) It has huge mass
Explanation:<\/strong> The Sun\u2019s enormous mass creates a powerful gravitational field.<\/p>\n\n\n\n

78. If there were no Moon,<\/strong>
<\/mark>a) Tides would be very small
b) Earth would stop rotating
c) Year length would change
d) Earth\u2019s orbit would shrink
Answer:<\/strong> a) Tides would be very small
Explanation:<\/strong> The Moon\u2019s gravitational pull is the main cause of tides on Earth.<\/p>\n\n\n\n

79. Gravitational attraction is responsible for<\/strong>
<\/mark>a) Keeping planets in orbit
b) Flow of electric current
c) Photosynthesis
d) Sound propagation
Answer:<\/strong> a) Keeping planets in orbit
Explanation:<\/strong> It acts as the binding force of the solar system.<\/p>\n\n\n\n

80. The direction of gravitational force is always<\/strong>
<\/mark>a) Upward
b) Downward toward Earth\u2019s center
c) Horizontal
d) Random
Answer:<\/strong> b) Downward toward Earth\u2019s center
Explanation:<\/strong> Gravity pulls objects toward Earth\u2019s core.<\/p>\n\n\n\n

81. The weight of a body becomes zero at<\/strong>
<\/mark>a) The center of the Earth
b) The equator
c) The poles
d) The Moon
Answer:<\/strong> a) The center of the Earth
Explanation:<\/strong> All gravitational forces balance out at the center, making weight zero.<\/p>\n\n\n\n

82. The rotation of Earth affects<\/strong>
<\/mark>a) Gravitational acceleration
b) Mass
c) Time of day only
d) Shape only
Answer:<\/strong> a) Gravitational acceleration
Explanation:<\/strong> Rotation slightly reduces effective gravity due to centrifugal effects.<\/p>\n\n\n\n

83. Weight of an object is<\/strong>
<\/mark>a) Scalar quantity
b) Vector quantity
c) Both
d) None
Answer:<\/strong> b) Vector quantity
Explanation:<\/strong> Weight has both magnitude and direction (toward Earth\u2019s center).<\/p>\n\n\n\n

84. Gravity helps in the<\/strong>
<\/mark>a) Circulation of blood
b) Growth of plants
c) Flow of rivers toward sea
d) Formation of clouds
Answer:<\/strong> c) Flow of rivers toward sea
Explanation:<\/strong> Gravity causes water to flow from higher to lower levels.<\/p>\n\n\n\n

85. Astronauts orbiting Earth are in<\/mark><\/strong>
a) Zero gravity
b) Continuous free fall
c) No motion
d) Magnetic field
Answer:<\/strong> b) Continuous free fall
Explanation:<\/strong> They fall around Earth, creating a sensation of weightlessness.<\/p>\n\n\n\n

86. The gravitational force between Earth and Sun keeps<\/mark><\/strong>
a) Earth stationary
b) Earth in orbit
c) Sun stationary
d) Moon revolving
Answer:<\/strong> b) Earth in orbit
Explanation:<\/strong> Sun\u2019s gravity provides the force that maintains Earth\u2019s revolution.<\/p>\n\n\n\n

87. Gravitational force depends on<\/mark><\/strong>
a) Product of masses
b) Sum of masses
c) Difference of masses
d) Volume
Answer:<\/strong> a) Product of masses
Explanation:<\/strong> Larger the masses, stronger the gravitational pull.<\/p>\n\n\n\n

88. When you move from pole to equator, your weight<\/mark><\/strong>
a) Increases
b) Decreases
c) Remains constant
d) Becomes zero
Answer:<\/strong> b) Decreases
Explanation:<\/strong> Effective gravity is less at equator due to Earth\u2019s rotation.<\/p>\n\n\n\n

89. The motion of satellites is an example of<\/mark><\/strong>
a) Free fall
b) Projectile motion
c) Uniform motion
d) Rotational motion
Answer:<\/strong> a) Free fall
Explanation:<\/strong> Satellites continuously fall toward Earth but never reach it due to forward speed.<\/p>\n\n\n\n

90. The Moon keeps the same face toward Earth because<\/mark><\/strong>
a) It doesn\u2019t rotate
b) Its rotation equals its revolution time
c) It\u2019s fixed in space
d) Gravity is absent
Answer:<\/strong> b) Its rotation equals its revolution time
Explanation:<\/strong> Synchronous rotation causes the same side to face Earth.<\/p>\n\n\n\n

91. The force which binds the Earth\u2019s atmosphere is<\/mark><\/strong>
a) Gravity
b) Pressure
c) Friction
d) Magnetic field
Answer:<\/strong> a) Gravity
Explanation:<\/strong> Gravity holds gases around the planet.<\/p>\n\n\n\n

92. Weight is a measure of<\/mark><\/strong>
a) Mass
b) Gravitational force on a body
c) Density
d) Pressure
Answer:<\/strong> b) Gravitational force on a body
Explanation:<\/strong> Weight is the force with which Earth attracts a body.<\/p>\n\n\n\n

93. Gravity on Earth is stronger than on the Moon because<\/mark><\/strong>
a) Earth\u2019s mass is greater
b) Earth\u2019s radius is smaller
c) Earth rotates faster
d) Earth is denser
Answer:<\/strong> a) Earth\u2019s mass is greater
Explanation:<\/strong> Greater mass means stronger gravitational field.<\/p>\n\n\n\n

94. The universal law of gravitation explains<\/mark><\/strong>
a) Only planetary motion
b) Attraction between any two masses
c) Only Earth\u2019s gravity
d) Magnetic behavior
Answer:<\/strong> b) Attraction between any two masses
Explanation:<\/strong> It applies to all objects in the universe.<\/p>\n\n\n\n

95. The fall of rain drops to Earth is due to<\/mark><\/strong>
a) Wind pressure
b) Gravity
c) Air friction
d) Condensation
Answer:<\/strong> b) Gravity
Explanation:<\/strong> Gravity pulls the water droplets downward.<\/p>\n\n\n\n

96. Gravitational pull between two small objects is<\/mark><\/strong>
a) Negligible
b) Large
c) Same as electric force
d) Very strong
Answer:<\/strong> a) Negligible
Explanation:<\/strong> Because their masses are small, gravitational attraction is extremely weak.<\/p>\n\n\n\n

97. A ball thrown upward comes down because<\/mark><\/strong>
a) Air pushes it
b) Gravity pulls it
c) Earth repels it
d) It loses mass
Answer:<\/strong> b) Gravity pulls it
Explanation:<\/strong> The ball slows, stops, and falls back under gravitational attraction.<\/p>\n\n\n\n

98. The planets move around the Sun in<\/mark><\/strong>
a) Straight lines
b) Circular or elliptical orbits
c) Random paths
d) Zigzag motion
Answer:<\/strong> b) Circular or elliptical orbits
Explanation:<\/strong> The balance between gravity and motion results in elliptical orbits.<\/p>\n\n\n\n

99. Gravity on the surface of Mars is<\/mark><\/strong>
a) Greater than Earth
b) Less than Earth
c) Equal to Earth
d) Zero
Answer:<\/strong> b) Less than Earth
Explanation:<\/strong> Mars has smaller mass, so its gravity is weaker.<\/p>\n\n\n\n

100. The importance of gravity in daily life is that it<\/strong>
<\/mark>a) Keeps us on the ground
b) Stops rotation
c) Creates heat
d) Causes lightning
Answer:<\/strong> a) Keeps us on the ground
Explanation:<\/strong> Gravity holds everything on Earth\u2019s surface and gives us a sense of weight.<\/p>\n","protected":false},"excerpt":{"rendered":"

1. Who gave the universal law of gravitation?a) Newtonb) Keplerc) Galileod) EinsteinAnswer: aExplanation: Isaac Newton proposed the universal law of gravitation which states that every object attracts every other object in the universe. 2. Gravitation is always a ___ force.a) Repulsiveb) Attractivec) Neutrald) MagneticAnswer: bExplanation: Gravitational force always attracts two masses towards each other. 3.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"[]"},"categories":[1],"tags":[],"class_list":{"0":"post-16437","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-blog"},"_links":{"self":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/16437","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/comments?post=16437"}],"version-history":[{"count":3,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/16437\/revisions"}],"predecessor-version":[{"id":17850,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/16437\/revisions\/17850"}],"wp:attachment":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/media?parent=16437"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/categories?post=16437"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/tags?post=16437"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}