ROTATIONAL MOTION MCQ Quiz: GKFix - Bridge of Knowledge - Page 647

Question 3231

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

It is zero always
It depends on internal forces
It is independent of center of mass
It equals total mass times velocity of center of mass

Question 3232

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What is the main reason for using the rigid body model in physics?

To make objects heavier
To increase complexity
To allow bending
To simplify analysis by ignoring deformations

Question 3233

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How does the center of mass affect the balance of a body?

It must be at the center
It must be high
It has no effect
A body balances when the center of mass is directly above the base of support

Question 3234

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What determines the stability of a rotating object?

Its color
Its temperature
Its linear speed
Its moment of inertia and angular momentum

Question 3235

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What is the angular momentum of a rigid body rotating about a fixed axis?

L = mv
L = Iα
L = τt
L = Iω