ep - angular motion

Question 1

what is angular motion

Answer 1

movement around a fixed point

Question 2

when does angular motion occur

Answer 2

when a force is applied outside of centre of mass

Question 3

what is angular displacement

Answer 3

the smallest change in angle between start and end

Question 4

easy was for angular displacement

Answer 4

how far something has turned

Question 5

what is the unit for angular displacement

Answer 5

radions

Question 6

what is angular velocity

Answer 6

rate of chang eof angular displacement

Question 7

easy way for angular velocity

Answer 7

how quickly something spins

Question 8

unit for angular velocity

Answer 8

rad/s

Question 9

what is angular acceleration

Answer 9

rate of change of angular velocity

Question 10

easy way for angular acceleration

Answer 10

how quickly something gets spinning or slows spinning

Question 11

unit for angular acceleration

Answer 11

rad/s2

Question 12

what is moment of inertia

Answer 12

the resistance of a body to angular motion

Question 13

unit of moment of inertia

Answer 13

kg m 2

Question 14

what two things does moment of inertia depend on

Answer 14

mass of the body
distribution of mass around axis

Question 15

how can an athlete increase angular velocity

Answer 15

bring mass towards axis of rotation by changing the shape of their body