11th Physics System of Particles And Rotational Motion MCQ Quiz for 2026 exam

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System Of Particles And Rotational Motion MCQ Test

Time: 10 Minutes for 10 Question.

11th Physics: System Of Particles And Rotational Motion

1 / 10

1. The centre of gravity of a body coincides with its centre of mass:

Always

Never

Only if the body is symmetrical

Only if the gravitational field is uniform

2 / 10

2. The principle of moments states that:

The sum of the clockwise moments about a point is equal to the sum of the anticlockwise moments about the same point

The sum of the clockwise moments about a point is greater than the sum of the anticlockwise moments about the same point

The sum of the clockwise moments about a point is less than the sum of the anticlockwise moments about the same point

The sum of the clockwise and anticlockwise moments about a point is zero

3 / 10

3. In rotational motion of a rigid body about a fixed axis, every particle of the body moves in a:

Straight line

Circle

Parabola

Ellipse

4 / 10

4. A rigid body is said to be in mechanical equilibrium if:

It is at rest

It is moving with constant velocity

It is rotating with constant angular velocity

Both its linear and angular momentum are not changing with time

5 / 10

5. The angular displacement, angular velocity, and angular acceleration are analogous to:

Displacement, velocity, and acceleration in linear motion

Force, momentum, and impulse in linear motion

Work, energy, and power in linear motion

None of the above

6 / 10

6. The radius of gyration of a body is:

The distance from the axis of rotation to the centre of mass

The distance from the axis of rotation to the point where the total mass of the body can be assumed to be concentrated

The square root of the ratio of the moment of inertia to the mass of the body

All of the above

7 / 10

7. A couple produces:

Pure translation

Pure rotation

Both translation and rotation

Neither translation nor rotation

8 / 10

8. The time rate of change of angular momentum of a particle is equal to:

The force acting on it

The torque acting on it

The linear momentum of the particle

The angular velocity of the particle

9 / 10

9. The magnitude of the vector product a × b is given by:

ab cos θ

ab sin θ

a2b2 sin θ

a2b2 cos θ

10 / 10

10. The angular momentum of a particle with respect to an origin is defined as:

r × p

r · p

p × r

p · r

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System Of Particles And Rotational Motion MCQ Test

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Chapter wise quiz of 11th class Physics MCQ

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