ROTATIONAL MOTION MCQ Quiz: GKFix - Bridge of Knowledge - Page 644

Question 3216

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What is the physical meaning of moment of inertia?

It measures linear speed
It indicates gravitational pull
It determines color
It measures the resistance of a body to changes in its rotational motion

Question 3217

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How does the linear velocity of a point on a rotating rigid body depend on its distance from the axis?

It is inversely proportional
It is independent of distance
It decreases with distance
It is directly proportional to the distance

Question 3218

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What is the relationship between torque and angular acceleration?

Torque equals force times velocity
Torque equals mass times acceleration
Torque equals energy divided by time
Torque equals moment of inertia times angular acceleration

Question 3219

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Why is angular velocity considered a vector quantity?

Because it measures speed only
Because it is scalar in nature
Because it has no direction
Because it has both magnitude and direction along the axis of rotation

Question 3220

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What is the significance of the vector product (cross product) in rotational dynamics?

It calculates kinetic energy
It adds linear velocities
It measures mass
It is used to define torque and angular momentum