ROTATIONAL MOTION MCQ Quiz: GKFix - Bridge of Knowledge - Page 516

Question 2576

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How is the total linear momentum of a system related to the centre of mass?

It is zero always
It depends only on rotational speed
It is equal to the total mass times the velocity of the centre of mass
It is independent of mass

Question 2577

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If a rigid body undergoes both translational and rotational motion, how is the translational part described?

By the motion of its geometric centre
By the motion of its heaviest part
By the motion of its centre of mass
By the angular velocity alone

Question 2578

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What is the vector sum of all forces acting on individual particles equal to?

Zero
Sum of internal forces
Sum of external forces only
Total gravitational force

Question 2579

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In a system of particles, what remains unaffected by internal forces?

Kinetic energy
Potential energy
Motion of the centre of mass
Rotational inertia

Question 2580

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What is the role of external forces in the motion of the centre of mass?

They create internal energy
They balance internal forces
They determine the acceleration of the centre of mass
They cause deformation