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  • 2018.09.18: "This is the BEST EXPLANATION EVER!!!! I got all my answers by just seeing them move!! Thanks a lot dude and thanks to ur family for helping us all out👍👍" Laiba Ali - YouTube Comment
Did you know I teach part-time to allow time to make these Flipping Physics videos? That is because it takes a tremendous amount of time to make videos of high caliber. Yep, I am in the classroom 40% of the time of a full-time teacher. That means I make 40% of the salary a full-time teacher. Can you imagine that? So realize, yes, I provide all the videos for free. This is because there are many people on this planet who cannot afford high quality education like this. However, if you can afford to, especially if you are assigning my videos for students to learn from, please pledge me a few dollars a month on Patreon. If not, there are other ways to help out as well. Thanks.
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Most Recent Video (2018.09.23)
Moments of Inertia of Rigid Objects with Shape (11:22)
The moment of inertia of a system of particles equation is used to estimate six different moments of inertia of rigid objects with constant density.
This is an AP Physics 1 topic.

Content Times:
0:10 Visualizing the examples
1:09 How we estimate
2:16 Thin rod - center of mass
2:57 Thin rod - one end
4:00 Thin, hollow cylinder - long cyl. axis
6:32 Solid cylinder - long cylindrical axis
8:23 Solid sphere - center of mass
9:11 Thin, hollow sphere - center of mass
10:31 Important review points
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  • Thank you to Christopher Becke, Andres Ramos, and Aarti Sangwan for being my Quality Control Team for this video.