5. Torque and Rotational Dynamics

Rotational Equilibrium And Newton’s First Law In Rotational Form — Quiz

Test your understanding of rotational equilibrium and newton’s first law in rotational form with 5 practice questions.

Practice Questions

Question 1

In rotational equilibrium, what must be true about the net torque on an object that is not rotating faster or slower over time?

Question 2

Which statement best describes Newton’s first law in rotational form?

Question 3

A rigid body has two equal and opposite torques acting on it, each with magnitude $5\,\text{N}\cdot\text{m}$. What is the net torque on the body?

Question 4

A wheel is initially at rest and then begins to rotate because a constant net torque is applied. Which statement is true if the moment of inertia stays constant?

Question 5

Which quantity is the rotational analog of mass in the equation $\sum \tau = I\alpha$?