Angular Velocity

What are the units for angular velocity

• m/s2

• rad/s

• kgm/s

• kg/m2

If the body is moving in a circle of radius r with a constant speed v, its angular velocity is

• v² / r

• vr

• v / r

• r / v

A record spins at 33 rpm (revolutions per minute), which is an angular velocity of about 3.46 radians per second. What is the approximate linear velocity of a fly that sits on the record, 12 cm from the center?

• 3.4 cm/s

• 21.5 cm/s

• 41.5 cm/s

• 131.9 cm/s

Tags

NGSS.MS-PS3-1

Explain how angular acceleration is related to changes in angular velocity over time.

• Angular acceleration is the rate of change of angular velocity

• Angular acceleration is the integral of angular velocity

• Angular acceleration is the product of angular velocity and time

• Angular acceleration is independent of angular velocity

Tags

DOK Level 3: Strategic Thinking

In the equation $v=\omega r,\ \ \omega\ represents...$

• Angular velocity measured in radians

• Angular velocity measured in degrees

• Angular velocity measured in revolutions

• The central angle measured in radians

What is angular velocity

• the rate of angular displacement of an object

• the resistance of an object to change its current state

• the amount of angular motion of an object

Klyde's angular velocity is

• the same as Bonnie's

• twice Bonnie's

• half of Bonnie's

• 1/4 Bonnie's

A circular object of radius R has an angular velocity of k rad/s. The angular velocity at a point R/2 is:

• 2k rad/s

• k/2 rad/s

• k² rad/s

• k rad/s

A grindstone spinning at the rate of 8.3 rev/s has what approximate angular speed?

• 3.2 rad/s

• 26 rad/s

• 52 rad/s

• 81 rad/s