## Services

Showing posts with label Rotational and Circular Motions. Show all posts
Showing posts with label Rotational and Circular Motions. Show all posts ## Circular and Rotational Motions - MCQ Test Series solved questions for NEET-UG, IIT JEE, COMEDK, MBBS and BDS admission tests, Engineering Entrance Exams

### Physics: Circular Motion, Rotational Motion

Physics MCQ Test Series solved questions for NEET-ug, IIT JEE, COMEDK, MBBS and BDS admission tests, Engineering Entrance Exams and other such competitive exams.
Syllabus for NEET and IIT JEE:
Kinematics of Circular Motion; Dynamics of Uniform Circular Motion; Centripetal Force; Examples: vehicle on level circular road, vehicle on baked track; Angular Velocity and is relation with Linear Velocity; Torque or Moment of Force and Angular Momentum; Laws of Conservation of Angular Momentum; Theorems of perpendicular axes and parallel axes; Kinematics of Rotational Motion about a fixed axis; Rolling Motion; General relation among Position-Velocity-Acceleration for Motion in a plane and Uniform Circular Motion; Centrifugal Force; Motion in a vertical circle; Rotational Motion of a rigid body; Moment of Inertia; Angular Impulse.

Solved MCQ Test Series – Set 3 (Q. No. 21-30)
Question 21: The angular speed of a fly wheel making 120 rev/min is:

Question 22: A child is swinging a swing, minimum and maximum heights of swing from earth’s surface are 0.75 m and 2 m respectively. The maximum velocity of this swing is –
a. 5 m/s
b. 10 m/s
c. 15 m/s
d. 20 m/s

Question 23: An aeroplane is flying with a uniform speed of 100 m/s along a circular path of radius 100 m. The angular speed of the aeroplane will be:

Question 24: A block of mass m slides down along the surface of the bowl from the rim to the bottom as shown in fig. The velocity of the block at the bottom will be –

Question 25: When a body moves with a constant speed along a circle:
a. Its velocity remains constant
b. No force acts on it
c. No work is done on it
d. No acceleration is produced on it

Question 26: A 1 kg ball is rotated in a vertical circle by using a string of length 0.1 m. If the tension in the string at the lowest point is 29.4 N, its angular velocity at that position is –

Question 27: A cyclist moves in a circular track of radius 100 m. If the coefficient of friction is 0.2. Then the maximum speed with which the cyclist take a turn without leaning inwards is:
a. 14.0 m/s
b. 140 m/s
c. 1.4 m/s
d. 9.8 m/s

Question 28: If all objects on the equator of earth feel weightless then the duration of the day will nearly become –
a. 6.2 hr
b. 4.4 hr
c. 2.2 hr
d. 1.41 hr

Question 29: Two racing cars of masses m1 and m2 are moving in circles of radii r1 and r2 respectively. Their speeds are such that each makes a complete circle in the same time t. The ratio of the angular speeds of the first to the second car is:
a. 1: 1
b. m1: m2
c. r1: r2
d. m1m2: r1r2

Question 30: A 2 kg stone is swung in a vertical circle by attaching it at the end of a string of length 2m. If the string can withstand a tension 140.6 N, the maximum speed with which the stone can be rotated is –
a. 22 ms-1
b. 44 ms-1
c. 33 ms-1
d. 11 ms-1 ## Circular and Rotational Motions - Solved Physics Test Series, MCQ with Solutions

Physics MCQ Test Series, Objective Questions with hints, solutions expected in Medical and Dental Entrance Exams, Engineering Entrance Exams; JEE, MBBS Admission Tests and such competitive exams.
Practice questions with solutions from some of these topics (randomly selected):
Kinematics of Circular Motion; Dynamics of Uniform Circular Motion; Centripetal Force; Examples: vehicle on level circular road, vehicle on baked track; Angular Velocity and is relation with Linear Velocity; Torque or Moment of Force and Angular Momentum; Laws of Conservation of Angular Momentum; Theorems of perpendicular axes and parallel axes; Kinematics of Rotational Motion about a fixed axis; Rolling Motion; General relation among Position-Velocity-Acceleration for Motion in a plane and Uniform Circular Motion; Centrifugal Force; Motion in a vertical circle; Rotational Motion of a rigid body; Moment of Inertia; Angular Impulse.

### Physics solved test series: Circular Motion, Rotational Motion

Multiple Choice Questions – Set 2 (Q No 11-20)

MCQ 11: A spool is pulled horizontally by two equal and opposite forces as shown in the figure. Which of the following statements is correct ?

a. The centre of mass moves towards left
b. The centre of mass moves towards right
c. The centre of mass remains stationary
d. The net torque about the centre of mass of the spool is zero

MCQ 12: An aeroplane revolves in a circle above the surface of the earth at a fixed height with speed 100 km/hr. The change in velocity after completing ½ revolution will be –
a. 200 km/hr
b. 150 km/hr
c. 300 km/hr
d. 400 km/hr

MCQ 13: Angular momentum of a body is equal to the product of –
a. Moment of inertia and angular velocity
c. Linear velocity and angular velocity
d. Mass and angular velocity

MCQ 14: A car of mass m is taking a circular turn of radius ‘r’ on a frictional level road with a speed v. In order that the car does not skid –

MCQ 15: A stone tied to the end of a string of 1 m long is whirled in a horizontal circle with a constant speed. If the stone makes 22 revolutions in 44 seconds, what is the magnitude and direction of acceleration of the stone?
a. π2 ms-2 and direction along the radius towards the centre
b. π2 ms-2 and direction along the radius away from the centre
c. π2 ms-2 and direction along the tangent to the circle
d. π2/4 ms-2 and direction along the radius towards the centre

MCQ 16: A particle of mass 2 kg is moving along a circular path of radius 1 m. If its angular speed is 2 π rad s-1, the centripetal force on it is:
a. 4 π N
b. 8 π N
c. 4 π4 N
d. 8 π2 N

MCQ 17: Two identical hollow spheres roll down two inclined planes of same height but of different angles of inclination. Then, they reach the bottom –
a. With same speeds and in same time
b. With different speeds and in different times
c. With same speed but in different times
d. With different speeds in same time

MCQ 18: A mass m is revolving in a vertical circle at the end of a string of length 20 cm. By how much times does the tension of the string at the lowest point exceed the tension at the topmost point –
a. 2 mg
b. 4 mg
c. 6 mg
d. 8 mg

MCQ 19: Work done by friction in case of pure rolling:
a. Is always zero
b. Is always positive
c. Is always negative
d. May be positive, negative or zero

MCQ 20: A car is travelling at 36 kmph on a road. If µ = 0.5 between the tyres and the road, the minimum turning radius of the car is – (g = 10 ms-2)
a. 20m
b. 25m
c. 30m ## Circular and Rotational Motions: Physics Practice Questions and MCQ Test Series for IITJEE, AIPMT, AIEEE, WBJEE, NAT, BITSAT, AFMC, KEAM, OJEE, Bihar PMT, KIITEE, COMEDK, UPCAT, JIPMER, BHU PMT and Joint Entrance Exams

Physics >> Circular and Rotational Motions

Prepare with practice questions and MCQ test series (solved) on “Circular Motion”, “Rotational Motion” to prepare for NEET, IITJEE, AIPMT, AFMC, other national and state level engineering and medical Joint Entrance Exams, MBBS Admission Tests, Tripura Joint Entrance Exam (TJEE), AIEEE, BITSAT, KEAM - CEE Kerala, AIPVT - All India Pre-Veterinary Test, West Bengal Joint Entrance (WBJEE), Manipal University MBBS Admission Test, Odisha Joint Entrance (OJEE), Bihar PMT, KIITEE, COMEDK - UPCAT, JIPMER MBBS Entrance Exam, Punjab Engineering and Medical Entrance Test, UPCMET, KCET, SRM EEE (SRM Engineering Entrance Exam), KMC Admission Test, Rajasthan Pre Veterinary Test (RPVT), EAMCET, IMS - BHU PMT (Banaras Hindu University Pre Medical Test), UPCPMT, AEEE (Amrita Engineering Entrance), Amrita MBBS & BDS Entrance Exam, VITEEE, AMU MBBS, AP JEE, CMC Vellore Medical Entrance Exam, NAT (National Aptitude Test), ISAT (IIST Admission Test) and other competitive examinations.

## Physics Practice Questions / MCQ Test Series on Circular Motion and Rotational Motion for Medical, Engineering Joint Entrance Tests

Syllabus: Kinematics of Circular Motion; Dynamics of Uniform Circular Motion; Centripetal Force; Examples: vehicle on level circular road, vehicle on baked track; Angular Velocity and its relation with Linear Velocity; Torque or Moment of Force and Angular Momentum; Laws of Conservation of Angular Momentum; Theorems of perpendicular axes and parallel axes; Kinematics of Rotational Motion about a fixed axis; Rolling Motion; General relation among Position-Velocity-Acceleration for Motion in a plane and Uniform Circular Motion; Centrifugal Force; Motion in a vertical circle; Rotational Motion of a rigid body; Moment of Inertia; Angular Impulse.

### Physics: Circular Motion, Rotational Motion

Multiple Choice Questions – Set 1 (Q No 1-10)
Question 1: The angular velocity of the second’s needle in watch is –

Question 2: If mass, speed and radius of the circle of a particle moving uniformly in a circular path are all increased by 50% the necessary force required to maintain the body moving in the circular path will have to be increased by:
a. 225%       b. 125%
c. 150%       d. 100%

Question 3: In a circus, stuntman rides a motorbike in a circular track of radius R in the vertical plane. The minimum speed at highest point of track will be:

Question 4: Suppose a disc is rotating counter clockwise in the plane of the paper then –
a. It’s angular velocity vector will be perpendicular to the page pointing up out of the page
b. It’s angular velocity vector will be perpendicular to the page pointing inwards
c. It’s angular velocity vector acts along the tangent to the disc
d. None of the above is correct

Question 5: A particle moves along a circle of radius (20 / p) m with constant tangential acceleration. If the velocity of the particle is 80 m/s at the end of the second revolution after motion has begun, the tangential acceleration is –
a. 40 m/s2           b. 640p m/s2
c. 160p m/s2       d. 40p m/s2

Question 6: A solid sphere of mass m rolls without slipping on an inclined plane of inclination θ. The linear acceleration of the sphere is –

Question 7: A particle is moving in a horizontal circle with constant speed. It has constant –
a. Velocity                b. Acceleration
c. Kinetic energy      d. Displacement

Question 8: The maximum tension that an inextensible ring of radius 1 m and mass density 0.1 kg m-1 can bear is 40 N. The maximum angular velocity with which it can be rotated in a circular path is:

Question 9: A satellite, which orbits the earth in an elliptical orbit, will have constant –
a. Linear speed
b. Angular speed
c. Angular momentum
d. Kinetic energy

Question 10: A solid sphere of mass 2 kg rolls up a 300 incline with an initial speed of 10 ms-1. The maximum height reached by the sphere is: (g = ms-2)
a. 3.5 m       b. 7.0 m
c. 10.5 m     d. 14.0 m

Circular and Rotational Motions - More Practice Questions, MCQ Test Series with solutions

<<Prev                                           (Q.No. 11-20) Next>>