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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Class 11 Physics (India) - Hindi: Projectile motion graphs (Hindi)
Visualizing position, velocity, and acceleration in two-dimensions for projectile motion. Class 11 Physics (India) - Hindi To help students…
VideoFree14
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Class 11 Physics (India): Calculating average velocity or speed
Although speed and velocity are often words used interchangeably, in physics, they are distinct concepts. Speed is calculated by dividing t…
VideoFree12 minutes
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Electrical engineering: Connect the LEDs to an on/off switch
Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also have sections that let you get down a…
VideoFree5 minutes
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Class 11 Physics (India): Correction to force of friction keeping the block stationary
Correction to Force of Friction Keeping the Block Stationary Class 11 Physics (India) Let's learn, practice, and master topics of class 11 …
VideoFree1 minute
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Class 11 Physics (India): Differentiating polynomials
Sal differentiates f(x)=x⁵+2x³-x², and evaluates the derivative at x=2. Class 11 Physics (India) Let's learn, practice, and master topics o…
VideoFree7
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Class 11 Physics (India): Worked example: Derivative as a limit
Enough abstract stuff already, let's see what the formal and alternative forms of the derivative look like in practice. Class 11 Physics (I…
VideoFree6
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Class 11 Physics (India): Stress & strain
To measure the elasticity of any material we need to define two quantities. Stress and strain. In this video let's explore what these are a…
VideoFree11
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Class 12 Physics (India): Rutherford’s gold foil experiment
Learn about Rutherford's discovery of the nucleus and the development of the nuclear model of the atom. Class 12 Physics (India) It is now …
VideoFree11 minutes
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Electrical engineering: Spout's reversing circuit and final assembly
Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also have sections that let you get down a…
VideoFree3 minutes
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Organic chemistry: Friedel-Crafts acylation
The mechanism of acylation. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of …
VideoFree9 minutes
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Organic chemistry: Decarboxylation
The decarboxylation (loss of carbon dioxide) of malonic acid and a beta-keto acid. Organic chemistry Sal and Jay cover topics covered in co…
VideoFree7 minutes
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Health and medicine: Meet the placenta!
Learn how the needs of the fetus are met by the placenta, which is a special organ that belongs to both the mother and the fetus! Rishi is …
VideoFree13 minutes
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Health and medicine: What is staphylococcal enteritis?
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree5 minutes
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Organic chemistry: SN1 and SN2 reactions of alcohols
SN1 and SN2 reactions of alcohols. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understand…
VideoFree10 minutes
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Organic chemistry: Sulfonation
Sulfonation of benzene. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of basi…
VideoFree10 minutes