ROTATIONAL MOTION

How does the radius of gyration relate to the second moment of area in engineering?

• It is the same thing
• It is analogous but for mass distribution instead of area
• It has no relation
• It is inversely proportional

What is the moment of inertia of a system independent of, even when rotating?

• Mass
• Shape
• Angular velocity
• Axis position

How does the moment of inertia of a bicycle wheel compare to a solid disc of the same mass and radius?

• It is smaller
• It is greater because mass is concentrated at the rim
• It is the same
• It depends on speed

What is the primary factor that makes a flywheel effective in energy storage?

• Its color
• Its temperature
• Its large moment of inertia achieved through mass and radius
• Its electrical conductivity

How does the moment of inertia affect the natural frequency of a torsional pendulum?

• It increases the frequency
• It has no effect
• Higher moment of inertia decreases the natural frequency
• It causes damping