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Physics - Rotational Motion

Practise 21 KCET previous year questions on Rotational Motion, compiled from papers spanning 2009 to 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty KCET tests.

Rotational Motion has been asked in 15 of the 20 years of KCET papers analysed (2007–2026), with 21 questions in all. 48% of them were easy, 33% moderate and 19% tough. Most of its questions came from 2014, with 3 questions that year. In the last three years (2024–2026) it had 4 questions across 3 papers, about 1.3 per paper.

The chapter's 5 topics are not weighted equally: Moment of inertia of rigid bodies (8 questions, 38%), Rotational kinematics (7 questions, 33%), and Torque (3 questions, 14%) have been asked the most. Moment of inertia of rigid bodies has also led over the last five years, with 3 questions. Rotational kinematics has produced the most tough questions (3).

  1. 1The angular momentum of a moving body remains constant, if2026Angular momentum and Angular impulse
  2. 2If the earth were to suddenly contract to half of its present radius, what would be the duration of the day?2026Moment of inertia of rigid bodies
  3. 3Two fly wheels are connected by a non-slipping belt as shown in the figure. , and . A torque of 10 Nm is applied on the smaller wheel. Then 2025Torque
  4. 4A body of mass 1 kg is suspended by a weightless string which passes over a frictionless pulley of mass 2 kg as shown in the figure. The mas2024Rotational kinematics
  5. 5The moment of inertia of a rigid body about an axis2023Moment of inertia of rigid bodies
  6. 6Seven identical discs are arranged in a planar pattern, so as to touch each other as shown in the figure. Each disc has mass radius . What i2023Moment of inertia of rigid bodies
  7. 7The angular speed of a motor wheel is increased from to in . The angular acceleration of the motor wheel is2022Rotational kinematics
  8. 8A coin placed on a rotating turn table just slips if it is placed at a distance of from the centre. If the angular velocity of the turn tabl2021Rotational kinematics
  9. 9A wheel starting from rest gains an angular velocity of after uniformly accelerated for . The total angle through which it has turned is2020Rotational kinematics
  10. 10A thin uniform rectangular plate of mass is placed in -plane as shown in figure. The moment of inertial about -axis is and the moment of ine2020Moment of inertia of rigid bodies
  11. 11A particle is moving uniformly along a straight line as shown in the figure. During the motion of the particle from A to B, the angular mome2019Angular momentum and Angular impulse
  12. 12Moment of inertia of a body about two perpendicular axes \( X \) and \( Y \) in the plane of lamina are \( 20 {Kg} m^{2} \) and \( 25 {Kg} m2018Moment of inertia of rigid bodies
  13. 13Three bodies a ring \( (R) \), a solid cylinder \( (C) \) and a solid sphere \( (S) \) having same mass and same radius roll down the inclin2016Rolling without Slipping
  14. 14The efficiency of a Carnot engine which operates between the two temperatures \( T_{1}=500 {~K} \) and \( T_{2}=300 {~K} \) is2015Moment of inertia of rigid bodies
  15. 15A car moves from A to B with a speed of \( 30 {kmph} \) and from B to A with a speed of \( 20 {kmph} \). What is the average speed of the ca2014Torque
  16. 16What is the source temperature of the Carnot engine required to get \( 70 \% \) efficiency ? Given sink temperature \( =27^{ } {C} \)2014Rotational kinematics
  17. 17A flow of liquid is streamline if the Reynold number is2014Rotational kinematics
  18. 18A solid sphere of mass rolls down an inclined plane without slipping, starting from rest at the top of an inclined plane. The linear speed o2011Rotational kinematics
  19. 19The moment of inertia of a circular disc of radius and mass about an axis passing through the centre of mass but perpendicular to the plane 2010Moment of inertia of rigid bodies
  20. 20The moment of inertia of a circular ring of radius and mass about diameter is2009Moment of inertia of rigid bodies
  21. 21A door wide requires a force of to be applied at the free end to open or close it. The force that is required at a point distance from the h2009Torque

Frequently Asked Questions

1.How many questions are available for Rotational Motion?

This chapter includes 21 questions compiled from KCET papers spanning 2009 to 2026.

2.Are these questions only from KCET, or from other exams too?

These are KCET questions specifically for the Rotational Motion chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Rotational Motion an important chapter for KCET Physics?

Rotational Motion has appeared in 15 of the 20 years of KCET papers covered here, with 21 questions across 15 papers - about one per paper it appears in.

4.What is the difficulty level of Rotational Motion questions in KCET?

Of the 21 questions analysed for this chapter, 48% are easy, 33% moderate and 19% tough. 2014 had the most, with 3 questions.

5.Which topics in Rotational Motion should I focus on?

These topics have carried the most weightage in Rotational Motion:

  • Moment of inertia of rigid bodies - 8 questions (38%)
  • Rotational kinematics - 7 questions (33%)
  • Torque - 3 questions (14%)
  • Rotational kinematics has produced the most tough questions (3).
6.Is Rotational Motion's weightage in KCET going up or down?

Across all 15 papers analysed, Rotational Motion has averaged about 1.4 questions per paper. In the last three years (2024–2026), that average has stayed about the same, at about 1.3 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.