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Gravitation Class 11 mcq. We covered all the Gravitation Class 11 mcq in this post for free so that you can practice well for the exam.
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Gravitation Class 11 Objective mcq for Students
The Mass of a body on Earth is 100 kg (acceleration due to gravity, gₑ = 10 m/s²). If acceleration due to gravity on the Moon is (gₘ = 1/6 m/s²), then the Mass of the body on the Moon is
(A) 100/6 kg
(B) 60 kg
(C) 100 kg
(D) 600 kg
Option c – 100 kg
Weightlessness is
(A) Zero gravity
(B) When gravity decreases
(C) In a vacuum
(D) None of the above
Option a – Zero gravity
The Earth travels in its orbit at a speed of approximately 4,400 km per hour. Why do we not feel this high speed?
(A) Because we are too small compared to the size of the Earth
(B) Our relative speed with respect to the Earth along the Earth’s orbit is zero
(C) The Solar system as a whole is also moving
(D) The gravity of the Earth constantly pulls us toward the Earth’s center
If the gravitational force of the Earth suddenly disappears, which of the following will be the correct consequence?
(A) The weight of an object will become zero, but the Mass will remain the same
(B) The Mass of the object will become zero, but the weight will remain the same
(C) Both the Mass and the weight of the object will become zero
(D) The Mass of the object will increase
Option a – The weight of an object will become zero, but the Mass will remain the same
An artificial satellite orbiting around the Earth does not fall down. This is so because the attraction of Earth
(A) Does not exist at such a distance
(B) Is neutralized by the attraction of the Moon
(C) Provides the necessary speed for its steady motion
(D) Provides the necessary acceleration for its motion
Option d – Provides the necessary acceleration for its motion
A ball is dropped from the top of a high building with a constant acceleration of 9.8 m/s². What will be its velocity after 3 s?
(A) 9.8 m/s
(B) 19.6 m/s
(C) 29.4 m/s
(D) 39.2 m/s
Option c – 29.4 m/s
If the radius of the Earth were to shrink by one percent, its Mass remaining the same, the value of g on the Earth’s surface would
(A) Increase by 0.5%
(B) Increase by 2%
(C) Decrease by 0.5%
(D) Decrease by 2%
Option b – Increase by 2%
The acceleration due to the gravity of a destructive Earthquake will be
(A) >550 cm/s²
(B) >750 cm/s²
(C) >950 cm/s²
(D) >980 cm/s²
Option d – >980 cm/s²
We covered all the Gravitation Class 11 mcq above in this post for free so that you can practice well for the exam.
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