Quiz: Rotational Motion

 2600 rev/min is equivalent to which of the following?

• 2600 rad/s 
• 43.3 rad/s 
• 273 rad/s
• 60 rad/s

Tags

CCSS.HSF.TF.A.1

A fan blade, initially at rest, rotates with a constant acceleration of 0.025 rad/s². What is the time interval required for it to reach a 4.2 rad displacement after starting from rest   

• 1.8 s
• 2.0 s
• 16 s
• 18 s

Tags

NGSS.HS-PS2-1

The number of complete revolutions per second is:

• frequency

• period

• torque

• rotational inertia

Tags

NGSS.HS-PS4-1

The time required for one complete revolution is:

• torque

• frequency

• period

• rotational kinetic energy

The drum of a washing machine rotates 1800 times in 3 minutes. What is the period?

• 0.1 s

• 0.2 s

• 0.3 s

• 0.5 s

A gear spins at a rate of 400 revolutions/minute. Which choice is closest to its angular speed in radians/second?

• 6.67 rad/s

• 2500 rad/s

• 41.9 rad/s

• 20.9 rad/s

Which of the following is the unit for angular displacement?

• meters

• seconds

• radians

• radians per second

An object moves from point A to point B along a circular path with a radius R. What is the size of the angle θ?

• 1 rad

• 2 rad

• 3 rad

• 4 rad

A solid disk with a radius R rotates at a constant rate ω. Which of the following points has the greater angular displacement?

• A

• B

• C

• All points have the same angular displacement.

A solid disk with a radius R rotates at a constant rate ω. Which of the following points has the greater angular velocity?

• A

• B

• C

• All points have the same angular velocity