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Class 11
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Physics
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Systems of Particles and Rotational Motion
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Easy Questions
Systems Of Particles And Rotational Motion
Physics
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BITSAT
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Consider the following two statements A and B and identify the correct choice.
A) The moment of inertia of a rigid body is independent of its angular velocity.
B) The radius of gyration of a rotating metallic disc is dependent on its temperature.
A
A is true but B is false
B
A is false but B is true
C
Both A and B are true
D
Both A and B are false
Easy
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CG of a triangular lamina is at its _____.
Easy
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A particle is moving along a fixed circular orbit with uniform speed. Then the correct statement among the following is:
A
Angular momentum of particle is constant only in magnitude but its direction changes from point to point
B
Angular momentum of particle is constant only in direction but its magnitude changes from point to point
C
Angular momentum of particle is constant both in magnitude and direction
D
Angular momentum of particle is not constant both in magnitude and direction
Easy
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Which of the following has the maximum momentum?
A
A 100 kg vehicles moving at 0.02 ms
−
1
.
B
A 4 g weight moving at 10,000 cms
−
1
.
C
A 200 g weight moving with kinetic energy of 10
−
6
J
.
D
A 20 g weight after falling one kilometer.
Easy
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Consider the following two statements A and B and identify the correct choice
A) The torques produced by two forces of couple are opposite to each other
B) The direction of torque is always perpendicular to plane of rotation of body
A
A is true but B is false
B
A is false but B is true
C
Both A and B are true
D
Both A and B are false
Easy
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Equal volume of two solution having pH = 2 and pH = 10 are mixed together at 90C. Then pH of resulting solution is : (Take Kw at 90C =
1
0
−
1
2
)
A
2 + log 2
B
10 log 2
C
7
D
6
Easy
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When the velocity of a body is doubled
A
kinetic energy is doubled
B
acceleration is doubled.
C
momentum is doubled.
D
potential energy is doubled.
Easy
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The centre of gravity depends on the acceleration due to gravity at the given place.
A
True
B
False
Easy
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The centre of gravity of regular shaped objects is at their _____.
Easy
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Which of the following pairs of physical quantities are not analogous to each other in case of translatory motion and rotational motion,
A
force, torque
B
mass, moment of inertia
C
couple, torque
D
linear momentum, angular momentum
Easy
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