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1st Year Physics Chapter Five Circular Motion MCQs Quiz Test

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If you are looking first Year Chapter Five Physics CIRCULAR MOTION Chapter Wise MCQs question answers, You are here on right website all of these Multiple Choice Question answers are helpful for learning exams MCQs Questions with solutions. Learn these important Key points for upcoming board exams and tests preparations.

1st Year MCQs Quiz Test Physics
1st Year Physics Chapter 5 MCQs Quiz Test



On this website you will learn first Year Physics Unit Five CIRCULAR MOTION MCQs with solved Answers. Mostly past papers important MCQs are helpful for getting better marks. You will easily learn this chapter by learning these solved MCQs of CIRCULAR MOTION.

Important Key Points You Will Learn in Chapter Five:

  • Angular Displacement, Velocity, and Acceleration
  • Relation b/w Angular and Linear Velocities
  • Centripetal Force
  • Moment of Inertia
  • Angular Momentum
  • Rotational Kinetic Energy
  • Artificial Satellite
  • Real and Apparent Weight
  • Orbital Velocity
  • Artificial Gravity
  • Geostationary Orbits
  • Communication Satellite
  • Newton’s and Einstein’s views of Gravitation

Q.1: The rotational K.E of the hoop is?
  1. Equal to its translational K.E
  2. Half than its translational K.E
  3. Double than its translational K.E
  4. Four times than its translational K.E
A
Q.2: A hoop and disc have the same mass and radius. Their rotational K.E is related by an equation?
  1. K.Ehoop = K.Edisc
  2. K.Ehoop = 2K.Edisc
  3. K.Ehoop = 1/2K.Edisc
  4. K.Ehoop = 4K.Edisc
B
Q.3: The angular velocity of a minute hand of a clock is?
  1. 2 π/60 rads-1
  2. π/24 rads-1
  3. 2 π/3600 rads-1
  4. π/3600 rads-1
D
Q.4: The angular K.E of a body is independent of?
  1. Speed
  2. Moment of inertia
  3. Angular momentum
  4. None of these
D
Q.5: A body suddenly comes and sits on the circular rotating table. What will remain conserved?
  1. Angular momentum
  2. Linear velocity
  3. Kinetic energy
  4. None of these
A
Q.6: According to Einstein, the gravitational interaction is possible between?
  1. Material objects only
  2. Material objects and electromagnetic radiation only
  3. Electromagnetic radiations
  4. None of the above
B
Q.7: The number of revolutions in 3π radians?
  1. 2
  2. 3/2
  3. 6
  4. 1/60
B
Q.8: The period of circular motion is given by:?
  1. T = rV
  2. T  = ωw
  3. T = 2πω
  4. T = 2π/ω
D
Q.9: The direction of linear velocity of a body moving in a circle is?
  1. Along the axis of rotation
  2. Along the tangent
  3. Directed towards the center
  4. Directed away from the center
B
Q.10: When a body moves in a circle, the angle between its linear velocity and angular velocity is always?
  1. 180°
  2. 0°
  3. 90°
  4. 45°
C
Q.11: An arc of length equal to the circumference of a circle subtends an angle?
  1. π radian
  2. 2π radian
  3. π/2 radian
  4. 4π radian
B
Q.12: The relation between linear and angular acceleration is:?
  1. α = axrv
  2. a = rxα
  3. a = α x r
  4. r = αxa
C
Q.13: When a body is whirled in a horizontal circle by means of a string the centripetal force is supplied by?
  1. Mass of body
  2. Velocity of body
  3. Tension in the string
  4. Centripetal acceleration
C
Q.14: What remains constant when the earth revolves around the sun?
  1. Linear momentum
  2. Linear K.E
  3. Angular K.E
  4. Angular momentum
D
Q.15: The angular momentum of a body is conserved if?
  1. Force acting on its constant
  2. Force acting on it is zero
  3. The torque acting on it is zero
  4. All of these
C
Q.16: A stone is whirled in a vertical circle at the end of the string. When the stone is at the highest position the tension in the string is?
  1. Maximum
  2. Zero
  3. Equal to the weight of the stone
  4. Less than the weight of the stone
C
Q.17: The “clutch” of a car works by using which type of collision?
  1. Torsional collision
  2. Rotational collision
  3. Scattering of piston
  4. None of these
B
Q.18: In the case of planets, the necessary acceleration is provided?
  1. Gravitational force
  2. Frictional force
  3. Coulomb force
  4. Centripetal force
A
Q.19: If a car moves with a uniform speed of 2ms-1 in a circle of radius 0.4. Its angular speed is?
  1. 4 rad. S-1
  2. 5 rad. S-1
  3. 1.6 rad. S-1
  4. 2.8 rad. S-1
B
Q.20: A body can have constant velocity when it follows an:?
  1. Elliptical path
  2. Circular path
  3. Parabolic path
  4. Rectilinear path
D
Q.21: A body moving along the circumference of a circle, completes two revolutions. If the radius of the circular path is R, the total angular displacement covered is?
  1. πR
  2. 2Πr
  3. Zero
  4. 4π
D
Q.22: The angular speed for the daily rotation of Earth in rad s-1 is?
  1. 2π
  2. π
  3. 4π
  4. 7.3 x 10-5 rads-1
D
Q.23: Time taken by geostationary satellite to complete one rotation around Earth is?
  1. 1 year
  2. 1 day
  3. 1 hour
  4. 84 min
1 day
Q.24: The direction of angular momentum is along?
  1. Tangent to the circle
  2. Inward the radius
  3. Axis of rotation
  4. Outward of the radius
C
Q.25: If a wheel of radius r turns through an angle of 30°, then the distance through which any point on its rim moves is?
  1. π/3 r
  2. π/6 r
  3. π/30 r
  4. π/180 r
B
Q.26: In angular motion, Newton’s second law of motion is:?
  1. F = ma
  2. F = ∆p/∆t
  3. t = 1α
  4. All of the above
C
Q.27: The angular speed of the second’s hand of a watch in rads-1 is?
  1. π
  2. π/2
  3. π/30
  4. π/180
π/30
Q.28: The shaft of a motor rotates at a constant angular speed of 360rev/min. Angle turned through in 1 sec in radian is?
  1. π
  2. 3π
  3. 6π
  4. 12π
D
Q.29: What is an outward force acting on a mass of 10kg when rotating at one end of an inelastic string 10m long at speed of 1m/s?
  1. 1N
  2. 10N
  3. 2N
  4. 100N
A
Q.30: If we whirl a stone at the end of a string in the vertical circle, it is likely to break when the stone is?
  1. At the highest point
  2. At the lowest point
  3. At any point during motion
  4. At the point where gravity is not acting
B
Q.31: The global positioning system consists of how many satellites?
  1. 24 Natural satellites
  2. 24 artificial satellites
  3. 3 synchronous satellites
  4. Both b and c
B
Q.32: A man of weight W is standing on an elevator which is ascending with an acceleration a. The apparent weight of the man is?
  1. mg
  2. mg – ma
  3. mg + ma
  4. ma – mg
C
Q.33: Who discovered the inverse square law of gravity?
  1. Einstein
  2. Galileo
  3. Newton
  4. Plank
C
Q.34: Bruce Mc. Candles stepped into space from a space shuttle in 1984 at a speed of?
  1. 2900 km h-1
  2. 29000 km h-1
  3. 29000 ms-1
  4. 2900 ms-1
B
Q.35: A satellite moving round the earth constitutes?
  1. An inertial frame of reference
  2. Non-inertial frame
  3. Neither inertial nor non-inertial
  4. Both inertial and non-inertial
B
Q.36: A body of mass 10kg is rotating in a circular path of radius ‘r’ m with constant speed. The work done in one complete revolution is?
  1. 10.3 rads-1
  2. Zero
  3. 100 rads-1
  4. 0.5 rads-1
B
Q.37: A body of 2kg is suspended from the ceiling of an elevator moving up with an acceleration g. Its apparent weight in the elevator will be?
  1. 9.8N
  2. 19.6N
  3. 129.4N
  4. 39.2N
D
Q.38: Moment of inertia of which body about its perpendicular axis is greater, (all have the same mass and radius)?
  1. Sphere
  2. Hoop
  3. Disc
  4. All have the same movement of inertia
B
Q.39: If θE is the angle of bending of light predicted by Einstein’s theory of gravity and θN that by Newton’s then?
  1. θE = θN
  2. θE = 1/2 θN
  3. θE = 2θN
  4. No relation exists between θE and θN
B
Q.40: In the solar eclipse of 1919 A.D., bending of straight light was measured to be?
  1. 1.745 degree
  2. 1.745 minute
  3. 1.745 seconds
  4. 1.745 radian
C
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