Rotational Motions Symbols and Vocab

Which of the following is NOT a unit of rotational speed?

• Meters per second

• Revolutions per minute

• Revolutions per second

• Rotations per second

A possible unit for angular acceleration is:

• rad/s²

• rad/s

• N*m

• Kg*m²

A degree is a unit of measurement equal to ?

• 1/400 of a revolution   
• 1/360 of a revolution   
• ½ π of a revolution   

One revolution equals?

• 1/2 "pie" rad
• 2 "pie" rad
• 180°
• 2 "pie" meters

As an object rotates, the change in angle is called _____.

• Angular displacement
• Angular velocity
• angular acceleration

Which symbol looks like a fish? $\alpha$  

• angular momentum

• angular velocity

• angular displacement

• angular acceleration

Which symbol looks like this? ω

• angular momentum

• angular velocity

• angular displacement

• angular acceleration

Which symbol looks like this? θ

• angular momentum

• angular velocity

• angular displacement

• angular acceleration

A car drives on a circular track and goes around 3 complete times. How many radians has it drive through?

• 6π

• 8π

• 2π

• 6

Angular Displacement

• θ

• ω

• α

• s