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: Einstein velocity addition formula derivation
Einstein velocity addition formula derivation Physics Learn about the basic principles that govern the physical world around us. Solid unde…
VideoFree8 minutes
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Class 11 Physics (India) - Hindi: Average velocity for constant acceleration (Hindi)
Calculating average velocity when acceleration is constant. Class 11 Physics (India) - Hindi To help students who prefer to learn by watchi…
VideoFree14
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Class 11 Physics (India) - Hindi: Launching and landing on different elevations (Hindi)
A more complicated example involving launching and landing at different elevations. Class 11 Physics (India) - Hindi To help students who p…
VideoFree14
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Electrical engineering: Spider's LED eyes
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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Class 11 Physics (India) - Hindi: Distance or arc length from angular displacement (Hindi)
Relating angular displacement to distance traveled or arc length. Class 11 Physics (India) - Hindi To help students who prefer to learn by …
VideoFree11
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Class 12 Physics (India): PN breakdown and avalanche
What happens if the reverse biased voltage gets too high? The diode undergoes breakdown In this video we will explore what this 'breakdown'…
VideoFree9
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Class 11 Physics (India): Moments
Introduction to moments Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (NCERT) starting with kinemat…
VideoFree14 minutes
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Electrical engineering: Application of the fundamental laws (setup)
We can solve circuits by the direct application of the fundamental laws: Ohm's Law and Kirchhoff's Laws. (Part 1 of 2) Electrical engineeri…
VideoFree8 minutes
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Class 11 Physics (India): Avogadro's law
Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (NCERT) starting with kinematics and then moving to d…
VideoFree8
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Health and medicine: Clinical progression of multiple sclerosis
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree7 minutes
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Health and medicine: Preventing malaria
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree7 minutes
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Physics: Relationship between angular velocity and speed
How angular velocity relates to speed Physics Learn about the basic principles that govern the physical world around us. Solid understandin…
VideoFree9 minutes
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Physics: Introduction to tension
An introduction to tension. Solving for the tension(s) in a set of wires when a weight is hanging from them. Physics Learn about the basic …
VideoFree10 minutes
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Class 11 Physics (India): Riemann approximation introduction
Approximating the area under a curve using some rectangles. This is called a "Riemann sum". Class 11 Physics (India) Let's learn, practice,…
VideoFree7
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Class 12 Physics (India): Photon Energy
In this video, David explains what a photon is and how to determine the energy of a photon. Class 12 Physics (India) It is now time to dive…
VideoFree9 minutes