Angular Motion Table

Question 1

What is moment of inertia ?

Answer 1

Reluctance of a body to change its state of angular motion or rotation.

Question 2

What is angular velocity ?

Answer 2

The rate of spin in a particular direction or angular displacement per unit of time.

Question 3

What is angular momentum ?

Answer 3

The amount of angular rotation of a rotating body.

Question 4

What is the calculation for the moment of inertia and the units of measurement?

Answer 4

Sum of mass multiples by distance of the mass from the axis of rotation squared.
I=emr2
(The e is made up of straight lines rather than curved, couldn’t find correct symbol)

Units of measurement: kgm squared

Question 5

What is the calculation for angular velocity and the units of measurement ?

Answer 5

Angular velocity (w) = angular displacement / time
W= d/t

Units of measurement: rad/s (radians per second)

Question 6

What is the calculation for angular momentum and the units of measurement ?

Answer 6

Angular momentum (L) = momentum of inertia (l) x angular velocity (w)
L=lw
Units of measurement: kgm squared / s
(Kilograms metres squared per second)