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): Vector addition & magnitude
Sal explains some interesting properties of the magnitude of vector sums. Class 11 Physics (India) Let's learn, practice, and master topics…
VideoFree6
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Class 11 Physics (India): Tension in an accelerating system and pie in the face
The second part to the complicated problem. We figure out the tension in the wire connecting the two masses. Then we figure out how much we…
VideoFree9 minutes
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Health and medicine: Aging and cognitive abilities
Learn about how cognitive abilities change as we age. Health and medicine The medical world can be a confusing place. Patients, their fami…
VideoFree3 minutes
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Class 11 Physics (India): Space station speed in orbit
Speed necessary for the space station to stay in orbit Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physic…
VideoFree7 minutes
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Class 11 Physics (India) - Hindi: Bernoulli's equation (Hindi)
In this video Ram derives Bernoulli's equation. Class 11 Physics (India) - Hindi To help students who prefer to learn by watching Hindi vid…
VideoFree19
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Health and medicine: Spermatogenesis
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree10 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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Class 11 Physics (India) - Hindi: Harmonic motion part 3 (no calculus) (Hindi)
Figuring out the period, frequency, and amplitude of the harmonic motion of a mass attached to a spring. Class 11 Physics (India) - Hindi T…
VideoFree12
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Class 11 Physics (India) - Hindi: Angular velocity and speed (Hindi)
An intuition for the relationship between the formulas for angular velocity and speed, including a worked example of calculating angular ve…
VideoFree6
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Class 12 Physics (India): De Broglie wavelength
In this video, David explains how Louis De Broglie got his Nobel Prize for the idea of matter having a wavelength. Class 12 Physics (India)…
VideoFree11 minutes
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Health and medicine: TB and HIV
Two deadly diseases, HIV and TB, can often co-exist in the same patient. These videos do not provide medical advice and are for information…
VideoFree9 minutes
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Chemistry: Balancing another combustion reaction
Balancing the combustion reaction of ethane, C₂H₆ Chemistry Did you know that everything is made out of chemicals? Chemistry is the study o…
VideoFree5 minutes
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Electrical engineering: What is inside an alarm clock radio?
In this video we explore what is inside an alarm clock, how it is made, and how it works. Electrical engineering Learn about electricity, c…
VideoFree14 minutes
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Chemistry: Concentration cell
Concentration cells are galvanic (or voltaic) cells made of two half-cells, each of which containing the same electrodes, but different con…
VideoFree10 minutes
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Class 11 Physics (India): Basic derivative rules: find the error
Sal analyzes two attempts of students to differentiate linear functions. Class 11 Physics (India) Let's learn, practice, and master topics …
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