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Electric potential always decreases in the direction of the electric field. Between parallel plates, moving away from a positive point charge, moving toward a negative point charge. Same rule every single time. youtu.be/f0IzkTJISMM

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Electric Potential Decreases in the Direction of the Electric Field
YouTube video by Flipping Physics
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November 8, 2026 at 4:02 PM
flippingphysics.bsky.social
Why was my homemade capacitor's data not quite linear? Fringe electric fields. The farther apart the plates, the more they matter, the higher the measured capacitance, and the more inflated the dielectric constant. youtu.be/r3io59l665E

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Why Real Capacitors Aren't Perfectly Ideal
YouTube video by Flipping Physics
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November 1, 2026 at 3:55 PM
flippingphysics.bsky.social
Two conducting spheres touch and separate. Same final electric potential, different final charge, because they are different sizes. Like two barrels joined by a hose: same water level, different amount of water. youtu.be/Wp1qpew3_DI

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Two Conducting Spheres in Electrical Contact
YouTube video by Flipping Physics
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October 28, 2026 at 2:27 PM
flippingphysics.bsky.social
The dielectric constant is just a multiplier. A vacuum is exactly 1. Dry air is 1.00059. Rubber is 3.0, so a rubber dielectric gives you 3 times the capacitance a vacuum would. That is all it tells you. youtu.be/KL-GfLDGmN8

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The Dielectric Constant
YouTube video by Flipping Physics
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October 26, 2026 at 6:18 PM
feministscience.bsky.social
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October 16, 2026 at 7:54 PM
feministscience.bsky.social
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October 14, 2026 at 11:52 AM
flippingphysics.bsky.social
Two point charges, find the net electric field at a point P. Billy solves for the angle, then realizes he never needed it: sine theta was 0.4 over 0.5 all along. Electric field vectors add exactly like forces do. youtu.be/sjPqFxdnCzM

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Net Electric Field due to Two Point Charges
YouTube video by Flipping Physics
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October 13, 2026 at 5:23 PM
flippingphysics.bsky.social
I measured the dielectric constant of printer paper with a capacitor made of foil and paper. Stack sheets, measure capacitance, linearize, take the slope. Out comes 2.4, and the published range is 2 to 4. youtu.be/2uNivhQd3hA

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Measuring the Dielectric Constant of Paper
YouTube video by Flipping Physics
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October 12, 2026 at 5:52 PM
brotheland10.bsky.social
Bypass multivariable calculus with Pappus's Centroid Theorem to find revolution volumes instantly!

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October 8, 2026 at 1:42 PM
brotheland10.bsky.social
Ditch multi-variable integrals! Pappus's Theorem turns complex volume of revolution problems into elementary math. 🎯

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October 7, 2026 at 2:36 AM
brotheland10.bsky.social
Double your speed, quadruple your braking distance! Master kinematics scaling for AP Physics 1. 🚗💨

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October 7, 2026 at 1:04 AM
brotheland10.bsky.social
What fraction of a rolling disk's energy is purely rotation? Watch how beta inertia ratios reveal the answer instantly! 🎡

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October 6, 2026 at 2:52 PM
brotheland10.bsky.social
How much energy is rotational in pure rolling? Master the beta ratio shortcut for AP Physics! ⚡

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October 5, 2026 at 10:59 PM
flippingphysics.bsky.social
Electric potential is a scalar, so superposition is just addition. Two point charges, one unknown, and the spot where the total potential is zero tells you the sign and relative size of that charge before any algebra. youtu.be/QG9gutOktvs

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Electric Potential due to Scalar Superposition
YouTube video by Flipping Physics
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October 5, 2026 at 3:55 PM
brotheland10.bsky.social
Why speed kills: stopping distance scales with the square of velocity! 🚗🛑

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October 3, 2026 at 6:55 PM
brotheland10.bsky.social
What fraction of a rolling disk's energy is rotational? Discover the clean beta fraction shortcut for pure rolling motion in AP Physics! #STEM

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October 1, 2026 at 10:52 PM
brotheland10.bsky.social
Skip internal string tension! Use the system approach: net driving force over total inertia gets you the Atwood acceleration instantly.

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September 30, 2026 at 9:26 PM
flippingphysics.bsky.social
New lesson: add a dielectric to a capacitor held at constant potential difference. Capacitance increases. Charge increases. Net electric field does not change at all. Bobby asks how, and answering him is the whole video. youtu.be/PiVyi7854eY

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Adding a Dielectric to a Non Electrically Isolated Capacitor
YouTube video by Flipping Physics
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September 29, 2026 at 4:02 PM
brotheland10.bsky.social
Does mass matter when sliding down a rough ramp? Discover why mass cancels out to give an elegant acceleration formula.

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September 29, 2026 at 5:09 PM