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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
A body has a Mass of 100 kg on Earth where acceleration due to gravity is 10 m/s². If the acceleration due to gravity on the Moon is one-sixth of that on Earth, what will be the Mass of the body on the Moon?
(A) 100/6 kg
(B) 60 kg
(C) 100 kg
(D) 600 kg
Option c – 100 kg
Weightlessness refers to a condition of
(A) Absence of gravity
(B) Reduced gravitational force
(C) Presence of vacuum
(D) None of these
Option a – Absence of gravity
The Earth moves around the Sun at a speed of about 4,400 km per hour. Why do we not experience this motion?
(A) Humans are very small compared to the size of the Earth
(B) Our speed relative to the Earth along its orbit is zero
(C) The entire Solar system is also in motion
(D) Earth’s gravity continuously pulls us toward its center
Option b – Our speed relative to the Earth along its orbit is zero
If Earth’s gravitational force were to vanish suddenly, what would happen?
(A) The weight of an object would become zero, but its Mass would remain unchanged
(B) The Mass would become zero, but weight would remain the same
(C) Both Mass and weight would become zero
(D) The Mass of the object would increase
Option a – The weight of an object would become zero, but its Mass would remain unchanged
An artificial satellite revolving around the Earth does not fall straight down because Earth’s gravitational pull
(A) Does not act at that distance
(B) Is canceled by the Moon’s attraction
(C) Supplies the required speed for uniform motion
(D) Provides the necessary centripetal acceleration
Option d – Provides the necessary centripetal acceleration
A ball is released from the top of a tall building and falls with a constant acceleration of 9.8 m/s². What will be its velocity after 3 seconds?
(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 decreases by 1% while its Mass remains constant, how will the value of acceleration due to gravity at the surface change?
(A) It will increase by 0.5%
(B) It will increase by 2%
(C) It will decrease by 0.5%
(D) It will decrease by 2%
Option b – It will increase by 2%
The acceleration due to gravity associated with a highly destructive Earthquake would be
(A) Greater than 550 cm/s²
(B) Greater than 750 cm/s²
(C) Greater than 950 cm/s²
(D) Greater than 980 cm/s²
Option d – Greater than 980 cm/s²
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