Uploaded August 2016 | Updated September 2026, 2 weeks ago

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One of the most fundamental ideas physics students are introduced to is "inertia." Unfortunately, many students misunderstand the concept. This video should set the record straight.
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VIDEO ANNOTATIONS

Why Does The Earth Keep Spinning?
youtu.be/H-tuLd9Mu9k

Relativity (Part 1):
youtu.be/0GNdyi3NatU

Why Do We Have ANY Size AT ALL?!
youtu.be/LY7SSvjsadE
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EXTRA INFO LINKS

Vertiasium on Mass vs Weight:
youtu.be/_Z0X0yE8Ioc

Determine Speed from Skid Marks:
youtu.be/dKCw0cfrvD8

Wikipedia:
en.wikipedia.org/wiki/Inertia
en.wikipedia.org/wiki/Aristotle
en.wikipedia.org/wiki/Four_causes
en.wikipedia.org/wiki/Galileo_Galilei
en.wikipedia.org/wiki/Isaac_Newton
en.wikipedia.org/wiki/Newton%27s_laws_of_motion
en.wikipedia.org/wiki/Philosophi%C3%A6_Naturalis_Principia_Mathematica
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LINKS TO COMMENTS

What is Space? - MrCoffis:
youtube.com/watch?v=LY7SSvjsadE&lc=z12qzhl41uzfxtcyx04cjnnzjn2jgj5j3nk0k

Space Field Repulsion - Joel Craig:
youtube.com/watch?v=LY7SSvjsadE&lc=z13qwnlgpmrpwfto504cjl04juvacdb5ilc0k

Differentials - Pablo Perez:
youtube.com/watch?v=LY7SSvjsadE&lc=z13jxloieqyntlksw22lcdtxnniwgvqzn04

String Theory - diodoubled:
youtube.com/watch?v=LY7SSvjsadE&lc=z12cwvibdnfhfne0a23zxp3g3newvdnjg04

Witty Comments - Kamikaze Katorin & whoeveriam0iam14222:
youtube.com/watch?v=LY7SSvjsadE&lc=z12qcjjjbxvwz5u0f23csjnrxofmcllxt04
youtube.com/watch?v=LY7SSvjsadE&lc=z135sr2bsvn4ffu2n23sjb5iftjbx1kyc04
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IMAGE CREDITS

Logo designed by: Ben Sharef

Stock Photos and Clipart
- Wikimedia Commons commons.wikimedia.org/wiki/Main_Page
- Openclipart openclipart.org
- or I made them myself...

Aristotle:
commons.wikimedia.org/wiki/File:Aristotle_Altemps_Inv8575.jpg

Galileo:
commons.wikimedia.org/wiki/File:Justus_Sustermans_-_Portrait_of_Galileo_Galilei,_1636.jpg
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TIME CODES

00:00 Introduction
00:32 Aristotle
01:03 Galileo
01:22 Inertial Motion
01:51 Newton
02:38 Conclusion
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Corrections:

00:18 The first scientist in human history was actually Abu Ali al-Hasan ibn al-Hasan ibn al-Haytham, who lived from about 960 to 1040 CE in the Middle East.