Angular momentum

Which would have a greater linear velocity?

• Kid near the center of the merry go round
• Kid near the outside of the merry go round
• neither

What happens to her angular velocity when a figure skater brings in her arms?

• Increases her angular velocity
• Decreases her angular velocity
• Has no affect

What does Rotational Inertia depend on?

• Mass

• Mass Distribution

• Both Mass and its Distribution

• Neither Mass nor its distribution

Which of these items is easier to turn?

• Left

• Right

• Both are just as easy to turn

Angular Momentum is the product of...

• rotational inertia and linear velocity.

• linear inertia and angular velocity.

• linear momentum and angular velocity

• rotational inertia and angular velocity.

Which has greater linear speed, a horse near the outside rail of a merry-go-round or a horse near the inside rail?

• the inside horse
• the outside horse
• Neither

Which equation below illustrates conservation of angular momentum the best?

• $\Sigma p_0=\Sigma p_{f\ }$

• $\Sigma L_0=\Sigma L_f\$

• $\Sigma\tau_0=\Sigma\tau_f\$

• $\Sigma\omega_0=\Sigma\omega_{f\ }$

What does this formula measure?

• moment of inertia
• impulse
• electric current
• angular momentum