lecture 7

Question 1

angular acceleration

Answer 1

rate of change of angular velocity over time

as with linear acceleration, the sign (-or +) of angular acceleration does not indicate the direction of movement

Question 2

angular velocity and acceleration relationship

Answer 2

-if angular acceleration is in the same direction as angular velocity, the person is increasing their angular velocity

-if angular velocity is in the opposite direction as angular velocity, the persons is decreasing their angular velocity

Question 3

angular velocity and acceleration graphs

Answer 3

the slope of angular velocity vs. time graph is angular acceleration
-direction of slope determines direction of angular acceleration
-steepness of slope determines magnitude of angular acceleration
the area of an angular velocity vs. time graph is angular displacement

Question 4

as with linear acceleration, the sign (+ or -) of angular acceleration does not indicate the _________

Answer 4

direction of movement

Question 5

if angular accerlation is in the same direction as angular velocity, the person is ________ their angular velocity

Answer 5

increasing

Question 6

if angular acceleration is in the opposite direction as angular velocity the person is _________ their angular velocity

Answer 6

decreasing

Question 7

the slope of an angular velocity vs. time graph is angular acceleration
__________ of sloper determines direction of angular acceleration
______ of slope determines magnitude of angular acceleration

Answer 7

direction
steepness

Question 8

the area of an angular velocity vs. time graph is

Answer 8

angular displacement