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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
Easy Qs
Med Qs
Hard Qs
>
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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The centre of a mass of a rigid body lies
A
inside the body
B
outside the body
C
neither
(
a
)
nor
(
b
)
D
either
(
a
)
or
(
b
)
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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If the resultant of all external forces is zero, then velocity of centre of mass will be
A
zero
B
constant
C
either
(
a
)
or
(
b
)
D
neither
(
a
)
nor
(
b
)
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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>
The motion of centre of mass depends on
A
total external forces
B
total internal forces
C
sum of
(
a
)
and
(
b
)
D
None of these
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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