Grade 9 Exam  >  Grade 9 Notes  >  AP Physics 1  >  Moment of Inertia

Moment of Inertia | AP Physics 1 - Grade 9 PDF Download

Moment of Inertia | AP Physics 1 - Grade 9 The moment of inertia, otherwise known as the angular mass or rotational inertia, of a rigid body is a quantity that determines the torque needed for a desired angular acceleration about a rotational axis; similar to how mass determines the force needed for a desired acceleration. It depends on the body's mass distribution and the axis chosen, with larger moments requiring more torque to change the body's rotation rate. It is an extensive (additive) property: for a point mass the moment of inertia is just the mass times the square of the perpendicular distance to the rotation axis. The moment of inertia of a rigid composite system is the sum of the moments of inertia of its component subsystems (all taken about the same axis). 
Important point about MI

Common symbols
I
SI unitkg m2
Other units
lbf·ft·s2
Extensive?yes
Derivations from
other quantities
{\displaystyle I={\frac {L}{\omega }}}Moment of Inertia | AP Physics 1 - Grade 9
DimensionM L2
The document Moment of Inertia | AP Physics 1 - Grade 9 is a part of the Grade 9 Course AP Physics 1.
All you need of Grade 9 at this link: Grade 9
41 videos|63 docs|27 tests
Related Searches

Important questions

,

video lectures

,

Sample Paper

,

Moment of Inertia | AP Physics 1 - Grade 9

,

Previous Year Questions with Solutions

,

practice quizzes

,

shortcuts and tricks

,

Extra Questions

,

Viva Questions

,

Free

,

study material

,

Objective type Questions

,

Moment of Inertia | AP Physics 1 - Grade 9

,

Moment of Inertia | AP Physics 1 - Grade 9

,

MCQs

,

Semester Notes

,

Exam

,

mock tests for examination

,

pdf

,

past year papers

,

ppt

,

Summary

;