Angular motion exam review UPDATED ACTUAL Exam Questions and CORRECT Answers

Angular motion exam review UPDATED
ACTUAL Exam Questions and CORRECT
Answers
Angular displacement - CORRECT ANSWER - states the number ofdegrees an
object/point rotates around an axis


Linear displacement - CORRECT ANSWER - states the distance a point travels around an
axis
Increasing the radius around the axis increases the displacement


Angular velocity - CORRECT ANSWER - describes the number of degrees of rotation
around an axis over a period of time
Example: 180°/second


Linear velocity - CORRECT ANSWER - describes how quickly a object rotates around an
axis


Moment of inertia - CORRECT ANSWER - an object's tendency to resist angular
acceleration around an axis (view it as the level of difficulty to spin an object)
The inertia depends on the total mass and the distribution of mass in relation to the axis
Similar to how mass determines the force needed to accelerate an object in linear movement
(f=ma)


true or false: The moment of inertia of an object is lower if the mass is concentrated near the axis
and higher if the mass is farther from the axis - CORRECT ANSWER - true



Angular momentum - CORRECT ANSWER - an object's tendency to continue rotating