Moment of inertia is one of the trickier subjects in AP Physics C: Mechanics. Its the idea that rotating objects want to resist rotating (much like how stationary objects want to resist moving). The MoI is unique in that it is dependent on the shape of the object. There are some common objects you can use such as a ring, sphere, cylinder, etc., and these objects have a MoI that will be provided to you for easy calculations. Moment of Inertia takes a lot of practice and conceptual understanding to grasp. Be sure to review this video as many times as necessary as this is one subject you should know inside and out.
Inertial mass is an object’s ability to resist a linear acceleration. Moment of Inertia (or rotational inertia) is an object’s resistance to a rotational acceleration.
Objects that have most of their mass near their axis of rotation have smaller rotational inertias than objects with more mass farther from their axis of rotation.
The moment of inertia can be found by summing the product of the mass of each object in the system and the square of its distance from the axis of rotation for all the objects in the system.
Moment of Inertia
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.
This book includes a comprehensive review of the key AP Physics C concepts and targeted strategies for acing every section of the exam. Additionally, the book includes two full length practice tests with full answer explanations.
The book offers a complete review of your AP course, strategies to give you the edge on test day, and plenty of practice with AP-style test questions. It includes 2 full length practice exams modeled on the real test, 3 separate plans to fit your study stle, review material updated to the most recent tests, and all the terms and concepts you need to know.