Chapter 6: Systems of Particles and Rotational Motion MCQs | physics Class 11 CBSE

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Chapter 6: Systems of Particles and Rotational Motion MCQs | physics Class 11 CBSE | ByteNotes.in

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Question 1

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In pure translational motion of a rigid body, which of the following is true at any instant?

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Question 2

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A rigid body is rotating about a fixed axis. A particle at perpendicular distance r from the axis has linear speed v. If a second particle is at distance 2r, its linear speed is

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Question 3

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The rolling motion of a cylinder on a plane is

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Question 4

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For a particle on the axis of rotation of a rotating rigid body, the linear velocity is

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Question 5

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Two particles of masses 2 kg and 6 kg are placed at x = 0 and x = 4 m respectively. The x-coordinate of their centre of mass is

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Question 6

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The centre of mass of a uniform triangular lamina coincides with its

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Question 7

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When no external force acts on a system of particles, which quantity remains constant?

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Question 8

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A projectile explodes in mid-air. The centre of mass of the fragments

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Question 9

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The magnitude of the vector product a × b of two vectors of magnitudes a and b inclined at angle θ is

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Question 10

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Which of the following is NOT a property of the vector product a × b?

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Question 11

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The vector relation between linear velocity v of a particle of a rotating rigid body and angular velocity ω is

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Question 12

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Angular acceleration is defined as

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Question 13

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Torque has the same dimensions as

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Question 14

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The torque on a particle is zero when

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Question 15

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The angular momentum l of a particle is related to the torque τ acting on it by

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Question 16

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A rigid body is in mechanical equilibrium. Which statement is CORRECT?

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Question 17

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A couple consists of two forces that are

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Question 18

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The centre of gravity of a body coincides with its centre of mass when

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Question 19

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For a lever in equilibrium, if the effort arm is three times the load arm, the mechanical advantage is

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Question 20

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The moment of inertia of a thin circular ring of mass M and radius R about an axis through its centre perpendicular to its plane is

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Chapter 6: Systems of Particles and Rotational Motion | MCQs

In pure translational motion of a rigid body, which of the following is true at any instant?

A rigid body is rotating about a fixed axis. A particle at perpendicular distance r from the axis has linear speed v. If a second particle is at distance 2r, its linear speed is

The rolling motion of a cylinder on a plane is

For a particle on the axis of rotation of a rotating rigid body, the linear velocity is

Two particles of masses 2 kg and 6 kg are placed at x = 0 and x = 4 m respectively. The x-coordinate of their centre of mass is

The centre of mass of a uniform triangular lamina coincides with its

When no external force acts on a system of particles, which quantity remains constant?

A projectile explodes in mid-air. The centre of mass of the fragments

The magnitude of the vector product a × b of two vectors of magnitudes a and b inclined at angle θ is

Which of the following is NOT a property of the vector product a × b?

The vector relation between linear velocity v of a particle of a rotating rigid body and angular velocity ω is

Angular acceleration is defined as

Torque has the same dimensions as

The torque on a particle is zero when

The angular momentum l of a particle is related to the torque τ acting on it by

A rigid body is in mechanical equilibrium. Which statement is CORRECT?

A couple consists of two forces that are

The centre of gravity of a body coincides with its centre of mass when

For a lever in equilibrium, if the effort arm is three times the load arm, the mechanical advantage is

The moment of inertia of a thin circular ring of mass M and radius R about an axis through its centre perpendicular to its plane is

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