Question 1
Question 2
Question 3
Question 4
A force of 10 N is applied perpendicular to a lever arm 2 meters from the pivot point. What is the torque exerted on the lever?
A. 5 Nm
B. 10 Nm
C. 20 Nm
D. 40 Nm
Question 5
Which of the following is NOT a parameter of rotational motion?
A. Angular displacement
B. Angular speed
C. Linear speed
D. Angular acceleration
Question 6
A solid sphere and a hollow sphere have the same mass and radius. Which one has a greater moment of inertia when rotated about an axis through its center?
A. Solid sphere
B. Hollow sphere
C. Both have the same moment of inertia
D. Cannot be determined without additional information
Question 7
A rotating object is in rotational equilibrium. Which of the following is true?
A. It has zero angular velocity.
B. It has zero angular acceleration.
C. It has zero torque.
D. All of the above.
Question 8
The angular momentum of a rotating object is tripled. If its moment of inertia remains constant, by what factor does its angular speed change?
A. Remains the same
B. Increases by a factor of 3
C. Increases by a factor of 9
D. Decreases by a factor of 3
Question 9
Which of the following best describes the energy associated with an object in pure rotational motion?
A. Only potential energy
B. Only translational kinetic energy
C. Only rotational kinetic energy
D. Both translational and rotational kinetic energy
Question 10
A wheel initially at rest undergoes a uniform angular acceleration for 10 seconds. If its final angular speed is 5 rad/s, what is its angular acceleration?
A. 0.5 rad/s2
B. 1 rad/s2
C. 2 rad/s2
D. 5 rad/s2