Khan Academy: 2757 products
Khan Academy is an organization on a mission. We're a not-for-profit with the goal of changing education for the better by providing a free world-class education for anyone anywhere.
All of the site's resources are available to anyone. It doesn't matter if you are a student, teacher, home-schooler, principal, adult returning to the classroom after 20 years, or a friendly alien just trying to get …
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Physics: Lorentz transformation derivation part 1
Using symmetry of frames of reference and the absolute velocity of the speed of light (regardless of frame of reference) to begin to solve …
VideoFree11 minutes
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Class 11 Physics (India): The derivative of x² at x=3 using the formal definition
Sal finds the limit expression for the derivative of f(x)=x² at the point x=3 and evaluates it. Class 11 Physics (India) Let's learn, pract…
VideoFree8
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Class 11 Physics (India) - Hindi: Recognizing force vectors for pendulum (Hindi)
Recognizing force vectors for the pendulum and finding the centripetal force. Class 11 Physics (India) - Hindi To help students who prefer …
VideoFree3
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Physics: Mechanical advantage (part 2)
More on mechanical advantage, levers and moments. Physics Learn about the basic principles that govern the physical world around us. Solid …
VideoFree7 minutes
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Class 11 Physics (India): The force of tension
David explains what the force of tension is, how to solve for it, and some common misconceptions involving the force of tension. Class 11 P…
VideoFree14 minutes
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Class 11 Physics (India): When the source and the wave move at the same velocity
What happens when both the listener and the source are moving together? Class 11 Physics (India) Let's learn, practice, and master topics o…
VideoFree8 minutes
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Electrical engineering: Switch statements & logic
Control switch statments using logic Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also …
VideoFree7 minutes
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Electrical engineering: Spout battery configuration and polarization
Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also have sections that let you get down a…
VideoFree2 minutes
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Electrical engineering: What is inside a DVD player? (5 of 5)
In this video we explore the laser assembly inside a DVD player. Electrical engineering Learn about electricity, circuit theory, and introd…
VideoFree3 minutes
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Electrical engineering: Spider's power switch
Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also have sections that let you get down a…
VideoFree6 minutes
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Electrical engineering: Motor controller connections
Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also have sections that let you get down a…
VideoFree2 minutes
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Electrical engineering: Fourier coefficients for sine terms
Fourier coefficients for sine terms Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also h…
VideoFree7 minutes
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Electrical engineering: Spout wiring for LED eyes
Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also have sections that let you get down a…
VideoFree11 minutes
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Electrical engineering: Add Spout's tail
Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also have sections that let you get down a…
VideoFree2 minutes
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Electrical engineering: What is inside a coffee maker?
In this video we explore what is inside a coffee maker, how it is made, and how it works. Electrical engineering Learn about electricity, c…
VideoFree14 minutes