Angular momentum Flashcards
Give the formula for angular momentum
Moment of inertia x angular velocity
Define moment of inertia
Resistance to change when rotating
Define angular velocity
The rate of movement in rotation
What is the relationship between moment of inertia and angular velocity?
They are inversely proportional to eachother - as one increases, the other decreases at the same rate
What does the moment of inertia depend on?
- Mass of an object
- Distribution of the mass around the object
What happens if the mass is closer to the axis of rotation?
The moment of inertia is low and therefore it is easier to turn (higher angular velocity)
What does increasing the distance of the distribution of mass from the axis result in?
An increased moment of inertia and decreased angular velocity
Between a tucked somersault and straight somersault, which will spin faster?
A tucked somersault - as mass is distributed closer to the axis of rotation
Give a word to describe angular momentum
Constant
