This one has nothing to do with physics! My daughter Ryan, who you may remember from several Flipping Physics videos, is a photography major at Rhode Island School of Design and a tattoo apprentice in Los Angeles. If you are in the Venice Beach area between mid-June and early August, you might be able to get a tattoo from her at a reduced price. She can design one for you or you can pick from her flash sheet designs. Even if you cannot make it to LA, you can support her by following her on Instagram or TikTok. Check out the video below!
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Torricelli's Theorem says the speed of a fluid flowing out of a small spigot from a large reservoir equals the square root of 2 times the gravitational field strength times the vertical height of the fluid above the spigot. In this video, I use a rain barrel to demonstrate it in action, predicting exactly where the water will land using projectile motion, and placing a rubber ducky right on that spot. Check out the video below!
This one is for all of my late testing AP Physics students. Whether you missed your exam due to a snow day in Denver or for any other reason, I see you and I did not forget about you. Get a good night's sleep, eat well, stay hydrated, bring a straight edge, and bring mass to the party. It has been a long year, longer for you. I am proud of you. Go do your best!
In this new lesson, Bobby, Billy, Bo and I explore equipotential surfaces in a uniform electric field. We connect what we already know about uniform electric fields, conductors in electrostatic equilibrium, and electric potential to build a deeper understanding before moving on to parallel-plate capacitors. We also discuss why it takes zero work to move a charge at a constant speed along an equipotential surface and why that requires constant speed rather than constant velocity.  A few months ago I started what I call my Early Watch Team. It is a small group of people I email every time I release a new video, and who watch it when that email arrives. Early views help the YouTube algorithm promote my videos, which means more students find them and learn physics for free. Joining is simple and free. If you want to support my work without spending a dime, this is a great way to do it. Check out the video below and use this link to sign up!
This one is specifically for my AP Physics C: Electricity and Magnetism students. Two AP Physics C exams in two days is a lot, and I am proud of everyone putting in the work. My review videos are still fully applicable for the exam. Get a good night's sleep, eat well, stay hydrated, and go do your best tomorrow! Check out the video below!
This one is specifically for my AP Physics C: Mechanics students. I answer a common question about whether my review videos are still applicable after the 2025 exam changes (they are!), give some last minute advice, and send everyone off with some well-deserved encouragement. The calculus makes everything so much fun. Go enjoy that exam! Check out the video below!
A few weeks ago, Rhea Susarla interviewed me for her podcast and I promised to let everyone know when it was released. And then AP exam season happened. So here is my apology to Rhea and my very belated announcement! The podcast is available on YouTube, Spotify, and her website. Links are in the video description. Check it out below!
This one is specifically for my AP Physics 2 students. Get a good night's sleep tonight, eat a good breakfast tomorrow, stay hydrated, bring a straight edge, and bring mass to the party. AP Physics 2 is rough and I know you have worked hard all year. I am proud of you. Go do your absolute best tomorrow! Check out the video below!
Flipping Physics just crossed the 200,000 subscriber mark on YouTube and I had to share it with you! It took 9 years to reach the first 100,000 and four years to reach the second. Thank you so much for your support. It is awesome to be able to provide free physics education to the world. Check out the video below!
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Yep, I make physics videos in the hope that you can learn physics. If you are a physics teacher, I am very hopeful that you will want to use them to help flip your physics class. Archives
June 2026
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