Angular momentum Flashcards

Lesson 21 (6 cards)

1
Q

What are the two things Angular momentum depend on?

A

-Moment of Inertia: The resistance of an object to change its state when rotating, greater the inertia the order it becomes to rotate
-Angular Velocity: The rate of movement in rotation, how quickly something is rotating/spinning

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2
Q

What is the equation for angular momentum?

A

Angular momentum= Moment of Inertia x Angular Velocity

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3
Q

What is the relationship between ‘Moment of Inertia’ and ‘Angular Velocity’?

A

-Both of these qualities are inversely proportional and will always have an affect on the other
-As one increases the other will decrease

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4
Q

What are the two things Moment of Inertia depend on?

A
  1. The Mass of the Object
  2. The distribution of this mass around the axis

-The closer the mass is to the axis of rotation, the easier it is to turn- so the moment of inertia is low, the further the mass is to the axis of rotation, the harder it is to turn- so the moment of inertia is high

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5
Q

What will increasing the distance of distribution of mass do?

A

Increasing the distance of the distribution of mass from the axis will increase the moment of inertia and decrease angular velocity

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6
Q

What does mass and angular momentum have in common?

A

Angular momentum and mass are both constant they remain constant unless an external force acts upon it

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