CBSE Class 11 Physics Rotational Motion Worksheet

Read and download free pdf of CBSE Class 11 Physics Rotational Motion Worksheet. Students and teachers of Class 11 Physics can get free printable Worksheets for Class 11 Physics Rotational Motion in PDF format prepared as per the latest syllabus and examination pattern in your schools. Class 11 students should practice questions and answers given here for Physics in Class 11 which will help them to improve your knowledge of all important chapters and its topics. Students should also download free pdf of Class 11 Physics Worksheets prepared by teachers as per the latest Physics books and syllabus issued this academic year and solve important problems with solutions on daily basis to get more score in school exams and tests

Worksheet for Class 11 Physics Rotational Motion

Class 11 Physics students should refer to the following printable worksheet in Pdf for Rotational Motion in Class 11. This test paper with questions and answers for Class 11 will be very useful for exams and help you to score good marks

Class 11 Physics Worksheet for Rotational Motion

Rotational Motion MCQ Questions with Answers Class 11 Physics 

Question- The moment of inertia of a body does not depend on:
(a) the mass of the body
(b) the angular velocity of the body
(c) the axis of rotation of the body
(d) the distribution of the mass in the body
Ans-(b)
 
Question- The ratio of the squares of radii of gyration of a circular disc and a circular ring of the same radius about a tangential axis is :
(a) 1 : 2
(b) 5 : 6
(c) 2 : 3
(d) 2 : 1
Ans-(b)
 
20. Moment of inertia of a uniform circular disc about a diameter is I. Its moment of inertia about an axis perpendicular to its plane and passing through a point on its rim will be:
(a) 5I
(b) 3I
(c) 6I
(d) 4I
Ans-(c)
 
Question- When a steady torque or couple acts on a body, the body:
(a) continues in a state of rest or of uniform motion by Newton’s 1st law
(b) gets linear acceleration by Newton’s 2nd law
(c) gets an angular acceleration
(d) continues to rotate at a steady rate.
Ans-(c)
 
Question- The driving side belt has a tension of 1600 N and the slack side has 500 N tension. The belt turns a pulley 40 cm in radius at a rate of 300 rpm. This pulley drives a dynamo having 90% efficiency. How many kilowatts are being delivered by the dynamo ?
(a) 12.4
(b) 6.2
(c) 24.8
(d) 13.77
Ans-(a)
 
Question- The angular velocity of a wheel increases from 100 rps to 300 rps in 10 s. The number of revolutions made during that time is:
(a) 600
(b) 1500
(c) 1000
(d) 2000
Ans-(d)
 
Question- When a ceiling fan is switched off, its angular velocity falls to half while it makes 36 rotations. How many more rotations will it make before coming to rest?
(a) 24
(b) 36
(c) 18
(d) 12
Ans-(d)
 
Question- A 6 kg ball starts from rest and rolls down a rough gradual slope until it reaches a point 80 cm lower than its starting point. Then the speed of the ball is :
(a) 1.95 ms–1
(b) 2.5 ms–1
(c) 3.35 ms–1
(d) 4.8 ms–1
Ans-(c)
 
Question- A uniform solid sphere rolls on a horizonal surface at 20 ms–1. It then rolls up an incline having an angle of inclination at 30° with the horizontal. If the friction losses are negligible, the value of height h above the ground where the ball stops is :
(a) 14.3 m
(b) 28.6 m
(c) 57.2 m
(d) 9.8 m
Ans-(b)
 
Question-A particle is moving along a straight line parallel to x–axis with constant velocity. Its angular momentum about the origin :
(a) decreases with time
(b) increases with time
(c) remains constant
(d) is zero
Ans-(c)
 
Question- If a gymnast, sitting on a rotating stool with his arms outstretched, suddenly lowers his arms :
(a) the angular velocity increases
(b) his moment of inertia increases
(c) the angular velocity remains same
(d) the angular momentum increases
Ans-(a)
 
Question- A solid sphere, a hollow sphere and a ring are release from top of an inclined plane (frictionless) so that they slide down the plane. Then maximum acceleration down the plane is for (no rolling) 
(a) solid sphere
(b) hollow sphere
(c) ring
(d) all same
Ans-(d)
 
Question-A particle performing uniform circular motion has angular momentum L. If its angular frequency is doubled and its kinetic energy halved, then the new angular momentum is : 
(a) L/4
(b) 2L
(c) 4 L
(d) L/2
Ans-(a)
 
Question-A solid sphere is rotating in free space. If radius of the sphere is increased keeping mass same which one of the following will not be affected ? 
(a) Moment of inertia
(b) Angular momentum
(c) Angular velocity
(d) Rotational kinetic energy
Ans-(b)
 
Question- Angular momentum of the particle rotating with a central force is constant due to
(a) constant force
(b) constant linear momentum
(c) constant torque
(d) zero torque
Ans-(d)
 
Question-A thin horizontal circular disc is rotating about a vertical axis passing through its centre. An insect is at rest at a point near the rim of the disc. The insert now moves along a diameter of the disc to reach its other end. During the journey of the insect, the angular speed of the disc 
(a) continuously decreases
(b) continuously increases
(c) first increases and then decreases
(d) remain unchanged
Ans-(c)
 
Question- A bob of mass m attached to an inextensible string of length l is suspended from a vertical support. The bob rotates in a horizontal circle with an angular speed ω rad/ s about the vertical. About the point of suspension :
(a) angular momentum changes in magnitude but not in direction.
(b) angular momentum changes in direction but not in magnitude
(c) angular momentum changes both in direction and magnitude
(d) angular momentum is conserved.
Ans-(b)
 
Question-A disc rotates about its axis of symmetry in a horizontal plane at a steady rate of 3.5 revolutions per second. A coin placed at a distance of 1.25 cm from the axis of rotation remains at rest on the disc. The coefficient of friction between the coin and the disc is : (g = 10 m/s2)
(a) 0.5
(b) 0.3
(c) 0.7
(d) 0.6
Ans-(d)
 
Question-A cricket mat of mass 50 kg is rolled loosely in the form of a cylinder of radius 2m. Now again it is rolled tightly so that the radius becomes 3/4th of original value; then the ratio of moment of inertia of mat in the two cases is:
(a) 1 : 3
(b) 4 : 3
(c) 3 : 5
(d) 16 : 9
Ans-(d)
 
Question- A circular disc is to be made using iron and aluminium. To keep its moment of inertia maximum about a geometrical axis, it should be so prepared that:
(a) aluminium at interior and iron surrounds it
(b) iron at interior and aluminium surrounds it
(c) aluminium and iron layers in alternate order
(d) sheet of iron is used at both external surface and aluminium sheet as inner material.
Ans-(a)
 

More question-

1 Mark Type

Q1. On what factors, does the position of centre of mass of a rigid body depend?

Q2. What is an isolated system? What will be the nature of motion of centre of mass of isolated sys?

Q3. Which physical quantity is conserved when a planet revolves around the sun?

Q4. Name rotational analogue of force. Give its S.I. Unit.

Q5.State factors on which radius of gyration of a body depend.

Q6. If friction can provide necessary centripetal force, why should the read be banked?

Q7. What is a rigid body?

Q8. Why are handles at max possible distance from the hinges in a door?

Q9. Why is it easier to balance a bicycle in motion?

Q10.What are the factors on which moment of inertia of a body depends?

Q11. Why are spokes fitted in a cycle wheel?

Q12.Why does a pilot not fall down when his airplane takes a vertical loop?

Q13. If the ice on the polar caps of the earth melts, how will it affect the duration of the day?

2/3 mark type :-

Q14. If no external force is acting on a two body system, what will happen to :- (a) Velocity of COM. (b) Angular momentum.

Q15. How does a diver manage to make somersaults in air?

Q16. The angular speed of a motor wheel is increased from 1200 rpm to 3120 rpm in 16 seconds. (i) What is its angular acceleration, assuming acceleration as uniform? (ii) How many revolutions does wheel make during this time?

Q17. State the two theorems of moment of inertia.

Chapter 01 Physical World
CBSE Class 11 Physics Physical World And Measurement Worksheet
Chapter 02 Units And Measurement
CBSE Class 11 Physics Unit And Measurement Worksheet
Chapter 03 Motion in a Straight Line
CBSE Class 11 Physics Motion In Straight Line Worksheet
Chapter 04 Motion in a Plane
CBSE Class 11 Physics Motion In A Plane Worksheet
Chapter 05 Laws of Motion
CBSE Class 11 Physics Laws Of Motion Worksheet
Chapter 06 Work Energy and Power
CBSE Class 11 Physics Work Energy And Power Worksheet
Chapter 07 System Of Particles And Rotational Motion
CBSE Class 11 Physics Systems Of Particles And Rotational Motion Worksheet
Chapter 08 Gravitation
CBSE Class 11 Physics Gravitation Worksheet
Chapter 09 Mechanical Properties Of Solids
CBSE Class 11 Physics Mechanical Properties Of Solids Worksheet
Chapter 10 Mechanical Properties Of Fluids
CBSE Class 11 Physics Mechanical Properties Of Fluids Worksheet
Chapter 11 Thermal Properties Of Matter
CBSE Class 11 Physics Thermal Properties Of Fluids Worksheet
Chapter 12 Thermodynamics
CBSE Class 11 Physics Thermodynamics Worksheet
Chapter 13 Kinetic Theory
CBSE Class 11 Physics Kinetic Theory Worksheet
Chapter 14 Oscillations
CBSE Class 11 Physics Oscillations Worksheet
Chapter 15 Waves
CBSE Class 11 Physics Waves Worksheet
z More Worksheets for Class 11 Physics
CBSE Class 11 Physics Kinematics Worksheet
CBSE Class 11 Physics Rotational Motion Worksheet
CBSE Class 11 Physics System Of Particle And Rigid Body Worksheet
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Worksheet for CBSE Physics Class 11 Rotational Motion

We hope students liked the above worksheet for Rotational Motion designed as per the latest syllabus for Class 11 Physics released by CBSE. Students of Class 11 should download in Pdf format and practice the questions and solutions given in the above worksheet for Class 11 Physics on a daily basis. All the latest worksheets with answers have been developed for Physics by referring to the most important and regularly asked topics that the students should learn and practice to get better scores in their class tests and examinations. Expert teachers of studiestoday have referred to the NCERT book for Class 11 Physics to develop the Physics Class 11 worksheet. After solving the questions given in the worksheet which have been developed as per the latest course books also refer to the NCERT solutions for Class 11 Physics designed by our teachers. We have also provided a lot of MCQ questions for Class 11 Physics in the worksheet so that you can solve questions relating to all topics given in each chapter.

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Yes, studiestoday.com provides all latest NCERT Rotational Motion Class 11 Physics test sheets with answers based on the latest books for the current academic session

What topics are covered in CBSE Class 11 Physics Rotational Motion worksheets?

CBSE Class 11 Physics Rotational Motion worksheets cover all topics as per the latest syllabus for current academic year.

How can I use worksheets to improve my Class 11 Physics scores?

Regular practice with Class 11 Physics worksheets can help you understand all concepts better, you can identify weak areas, and improve your speed and accuracy.