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Rotational Motion Questions

Practice 38 Rotational Motion questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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38
Total Questions
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5
Easy
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24
Medium
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9
Hard
Practice by Exam:Physics(36)PHYSICS(2)

About Rotational Motion ā€” practice questions, PYQs & concepts

Rotational Motion is a frequently-tested topic on Physics, PHYSICS. ExamTest.live currently lists 38 Rotational Motion questions spanning previous-year papers from 2026 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year ā€” every answer key is free, no sign-up required.

Rotational Motion weight in competitive exams

Across our Rotational Motion question bank, the largest sources are Physics (36) and PHYSICS (2). Click any exam chip above to drill down to that exam-specific question set.

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All Rotational Motion Questions(1ā€“38 of 38)

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Q1mediummcqPhysicsAIEEE 20062026
0% accuracy
A thin circular ring of mass and radius is rotating about its axis with a constant angular velocity . Two objects each of mass are attached gently to the opposite ends of a diameter of the ring. The ring now rotates with an angular velocity :
Q2hardmcqPhysicsNEET 20192026
0% accuracy
A solid cylinder of mass and radius rotating about its axis at the rate of . The torque required to stop after revolutions is:
Q3hardmcqPHYSICSNEET 20192026
A particle of mass at rest suddenly breaks on its own into three fragments. Two fragments of mass each move along mutually perpendicular directions with speed each. The energy released during the process is:
Q4hardmcqPhysicsNEET 20172026
Two discs of same moment of inertia rotating about their regular axis passing through centre and perpendicular to the plane of disc with angular velocities and . They are brought into contact face to face coinciding the axis of rotation. The expression for loss of energy during this process is:
Q5mediummcqPhysicsNEET 20172026
A rope is wound around a hollow cylinder of mass and radius . What is the angular acceleration of the cylinder if the rope is pulled with a force of ?
Q6mediummcqPhysicsNEET (UG) 20182026
Three objects, A : (a solid sphere), B : (a thin circular disk) and C : (a circular ring), each have the same mass and radius . They all spin with the same angular speed about their own symmetry axes. The amounts of work () required to bring them to rest, would satisfy the relation:
Q7mediummcqPhysicsNEET (UG) 20182026
The moment of the force, at , about the point , is given by:
Q8easymcqPhysicsNEET (UG) 20182026
A solid sphere is rotating freely about its symmetry axis in free space. The radius of the sphere is increased keeping its mass same. Which of the following physical quantities would remain constant for the sphere?
Q9mediummcqPhysicsNEET (UG) 20182026
A solid sphere is in rolling motion. In rolling motion a body possesses translational kinetic energy () as well as rotational kinetic energy () simultaneously. The ratio for the sphere is:
Q10mediummcqPHYSICSNEET 20192026
A solid cylinder of mass and radius rolls up an inclined plane of angle of inclination . The centre of mass of the cylinder has a speed of . The distance travelled by the cylinder on the inclined surface will be ():
Q11mediummcqPhysicsNEET 2020 E12026
Find the torque about the origin when a force of acts on a particle whose position vector is .
Q12mediummcqPhysicsNEET (UG) 20242026
The moment of inertia of a thin rod about an axis passing through its mid point and perpendicular to the rod is . The length of the rod is nearly:
Q13easymcqPhysicsNEET (UG) 20242026
A wheel of a bullock cart is rolling on a level road as shown in the figure below. If its linear speed is in the direction shown, which one of the following options is correct ( and are any highest and lowest points on the wheel, respectively)?
image
Q14mediummcqPhysicsAIEEE2026
An annular ring with inner and outer radii and is rolling without slipping with a uniform angular speed. The ratio of the forces experienced by the two particles situated on the inner and outer parts of the ring, is:
Q15mediummcqPhysicsAIEEE2026
The moment of inertia of a uniform semicircular disc of mass and radius about a line perpendicular to the plane of the disc through the centre is:
Q16mediummcqPhysicsAIEEE2026
Consider a uniform square plate of side ā€˜ ā€™ and mass ā€˜ ā€™. The moment of inertia of this plate about an axis perpendicular to its plane and passing through one of its corners is:
Q17mediummcqPhysicsJEE Main2026
A hoop of radius and mass rotating with an angular velocity is placed on a rough horizontal surface. The initial velocity of the centre of the hoop is zero. What will be the velocity of the centre of the hoop when it ceases to slip?
Q18mediummcqPhysicsPhysics
0% accuracy
The moment of inertia of a uniform circular disc of radius R and mass M about an axis passing from the edge of the disc and normal to the disc is :
Q19mediummcqPhysicsPhysics
0% accuracy
Two bodies have their moments of inertia I and 2I respectively about their axis of rotation. If their kinetic energies of rotation are equal, their angular momenta will be in the ratio :
Q20mediummcqPhysicsPhysics
0% accuracy
The moment of inertia of a thin uniform rod of mass and length about an axis passing through its midpoint and perpendicular to its length is . Its moment of inertia about an axis passing through one of its ends and perpendicular to its length is:
Q21mediummcqPhysicsPhysics
0% accuracy
The instantaneous angular position of a point on a rotating wheel is given by the equation . The torque on the wheel becomes zero at:
Q22easymcqPhysicsPhysics
The moment of inertia of a uniform circular disc is maximum about an axis perpendicular to the disc and passing through:
image
Q23mediummcqPhysicsPhysics
A solid sphere is rolling on a frictionless surface, shown in figure with a translational velocity . If it is to climb the inclined surface then should be:

image
Q24mediummcqPhysicsPhysics
Assertion: For a system of particles under central force field, the total angular momentum is conserved.Reason: The torque acting on such a system is zero.
Q25easymcqPhysicsPhysics
A wheel has an angular acceleration of and an initial angular speed of . In a time of , it has rotated through an angle (in radian) of:
Q26hardmcqPhysicsPhysics
A uniform rod of length and mass is free to rotate about point . The rod is released from rest in the horizontal position. Given that the moment of inertia of the rod about is , the initial angular acceleration of the rod will be:
Q27mediummcqPhysicsPhysics
A mass on a string rotates on a table. If radius is decreased by factor of by pulling the string, the kinetic energy will:
image
Q28hardmcqPhysicsPhysics
A circular platform is mounted on a frictionless vertical axle. Its radius and its moment of inertia . It is initially at rest. A man stands on the edge and begins to walk along the edge at a speed of relative to the ground. Time taken by the man to complete one revolution is:
Q29mediummcqPhysicsPhysics
Two rotating bodies and of masses and with moments of inertia and () have equal kinetic energy of rotation. If and be their angular momenta respectively, then:
Q30easymcqPhysicsPhysics
When a mass is rotating in a plane about a fixed point, its angular momentum is directed along:
Q31mediummcqPhysicsPhysics
A rod of mass and length is hinged at end . The rod is kept horizontal by a massless string tied to point . When the string is cut, the initial angular acceleration of the rod is:
image
Q32mediummcqPhysicsPhysics
A small object of uniform density rolls up a curved surface with an initial velocity . It reaches up to a maximum height of with respect to the initial position. The object is a:
Q33hardmcqPhysicsPhysics
An automobile moves on a road with a speed of . The radius of its wheels is and the moment of inertia of the wheel about its axis of rotation is . If the vehicle is brought to rest in , the magnitude of average torque transmitted by its brakes to the wheel is:
Q34hardmcqPhysicsPhysics
Point masses and are placed at the opposite ends of a rigid rod of length , and negligible mass. The rod is to be set rotating about an axis perpendicular to it. The position of point on this rod through which the axis should pass so that the work required to set the rod rotating with angular velocity is minimum, is given by:
image
Q35mediummcqPhysicsPhysics
A force is acting at a point . The value of for which angular momentum about origin is conserved is:
Q36hardmcqPhysicsPhysics
From a disc of radius and mass , a circular hole of diameter , whose rim passes through the centre is cut. What is the moment of inertia of the remaining part of the disc about a perpendicular axis, passing through the centre?
Q37hardmcqPhysicsPhysics
A light rod of length has two masses and attached to its two ends. The moment of inertia of the system about an axis perpendicular to the rod and passing through the centre of mass is:
image
Q38mediummcqPhysicsPhysics
A solid sphere of mass and radius is rotating about its diameter. A solid cylinder of the same mass and same radius is also rotating about its geometrical axis with an angular speed twice that of the sphere. The ratio of their kinetic energies of rotation () will be:

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