ROTATIONAL MOTION

How does the moment of inertia of a body influence its rotational stability?

• It decreases stability
• It has no effect on stability
• A higher moment of inertia increases resistance to changes in rotational motion, enhancing stability
• It causes random wobbling

What is the physical meaning of the radius of gyration in rotational motion?

• It is the actual radius of the object
• It is the distance from the Sun
• It is the distance from the axis at which the entire mass could be concentrated to give the same I
• It is the height of the object

If a rigid body rotates about an axis not passing through its center of mass, what additional factor contributes to its moment of inertia?

• The temperature difference
• The distance between the axis and the center of mass
• The air resistance
• The gravitational field strength

What is the role of mass distribution in determining the moment of inertia?

• It only affects weight
• It determines how far mass is from the axis, affecting I through r² dependence
• It changes the material properties
• It influences color and texture

How does the moment of inertia affect the time required to achieve a certain angular velocity under constant torque?

• It decreases the time
• It has no effect
• Higher moment of inertia increases the time required
• It only affects direction