ROTATIONAL MOTION MCQ Quiz: GKFix - Bridge of Knowledge - Page 642

Question 3206

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What is the main difference between elastic and inelastic collisions in terms of center of mass motion?

Only elastic collisions preserve it
Only inelastic collisions change it
It changes in both
The center of mass velocity remains unchanged in both cases

Question 3207

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Why can't a single force produce pure rotation in a free rigid body?

Forces cannot cause rotation
Rotation requires no force
Only gravity can rotate bodies
It would also cause translational motion

Question 3208

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What is the role of static friction in pure rolling motion?

It slows down the object
It increases kinetic energy
It causes slipping
It prevents slipping at the point of contact

Question 3209

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What determines whether a body will topple when tilted?

Its temperature
Its color
Its linear speed
Position of the center of mass relative to the base of support

Question 3210

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How is the kinetic energy of a rolling object expressed?

Only as (1/2)mv²
Only as (1/2)Iω²
As (1/2)mvω
As the sum of translational and rotational kinetic energies