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Work and Power in Rotational Motion Quiz

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1. What is the formula for calculating the work done in rotating a body through an angle $θ$ when a torque $τ$ is applied?

2. The power transmitted by a rotating shaft with a torque $τ$ and an angular velocity $ω$ is given by which of the following formulas?

3. If a disc is rotating and its moment of inertia is $I$ and the angular acceleration is $α$, what is the torque applied to the disc?

4. What is the unit of power in the International System of Units (SI) when measuring power in rotational motion?

5. Which of the following is a correct statement about the work done on a rotating body?

6. Which equation represents the kinetic energy $KE$ of a rotating object with moment of inertia $I$ and angular velocity $ω$?

7. What is the relationship between the angular velocity $ω$ and the linear velocity $v$ of a point on a rotating wheel with radius $r$?

8. What happens to the power required to maintain a constant angular velocity in a rotating system if the torque is doubled?

9. If the moment of inertia of a rotating object is increased while keeping the angular velocity constant, how does this affect the kinetic energy of the object?

10. For a rotating system, what does an increase in angular acceleration imply about the torque being applied?