Define rotational inertia.

The property of an object to resist change in a rotational motion.

The property of an object to resist change in a linear motion.

The property of an object to resist change.

at point C on the merry-go-round the tangential speed is .2 m/s how can point C double the speed to .4m/s

increase the rotational speed by 4

decrease the rotational speed by 1/2

On a balanced see-saw, a cow is three times as heavy as his partner sits

1/3 the distance from the fulcrum

less than 1/3 the distance from the fulcrum.

more than 1/3 the distance from the fulcrum

Circle the correct statement based on this situation. You apply 27N of force on a wrench.

As you decrease the radius where you apply the force, you will decrease the torque of the wrench.

As you decrease the radius where you apply the force, you will increase the torque of the wrench/

As you increase the radius where you apply the force, you will decrease the torque of the wrench.

Define tangential speed.

A measurement that measures distance travelled per unit of time in circular motion.

A measurement that measures the number of rotations per unit of time in a circle motion.

A MEASUREMENT THAT MEASURES HOW MUCH FORCE WAS APPLIED TO A ROTATION.

On a merry-go-round, horse A has a radius from the center of 10 m, while horse B has a radius from the center of 15m. Which horse has a greater rotational speed?

Neither, only radius is not enough to determine the rotational speed.

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Reviewed by Rajendra Khanal

Rajendra Khanal, PhD (Physics) |

Assistant Professor of Physics

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Rajendra Khanal, PhD in Applied Physics from The University of Toledo, is an Assistant Professor at the University of Pittsburgh with over 20 years of teaching experience. He also holds an MSHIM degree in Health Information Management from the University of Pittsburgh.

, PhD (Physics)

By Gjohn

Gjohn

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Quizzes Created: 1 | Total Attempts: 699

| Attempts: 699 | Questions: 12 | Updated: Mar 22, 2025