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: Equation for center of mass (Hindi)
The center of mass is a point in a system that responds to external forces as if the total mass of the system were concentrated at this poi…
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Class 11 Physics (India) - Hindi: Introduction to waves (Hindi)
Introduction to transverse and longitudinal waves. Class 11 Physics (India) - Hindi To help students who prefer to learn by watching Hindi …
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Chemistry: Calculating internal energy and work example
Worked example calculating the change in internal energy for a gas using the first law of thermodynamics Chemistry Did you know that everyt…
VideoFree7 minutes
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Class 11 Physics (India): Derivatives of sin(x), cos(x), tan(x), eˣ & ln(x)
Learn the derivatives of several common functions. Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (N…
VideoFree4
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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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Health and medicine: Treatments for bipolar disorder
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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Organic chemistry: R,S system
How to assign the configuration of a chirality center using the R,S system Organic chemistry Sal and Jay cover topics covered in college or…
VideoFree10 minutes
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Chemistry: Electron configurations 2
Figuring out configurations for the d-block elements Chemistry Did you know that everything is made out of chemicals? Chemistry is the stud…
VideoFree10 minutes
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Health and medicine: What is cystic fibrosis?
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree9 minutes
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Health and medicine: Inflammatory bowel disease vs irritable bowel syndrome
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 12 Physics (India): Conventional current
By convention, we define positive current to flow in the direction a positive charge would move. Electrons (with their negative charge) mov…
VideoFree4 minutes
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Class 11 Physics (India): Newton's third law of motion
Every action has an equal and opposite reaction Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (NCER…
VideoFree8 minutes
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Class 11 Physics (India) - Hindi: Thermal expansion of ring (Hindi)
How to find the radius of a ring that has gone under thermal expansion. Class 11 Physics (India) - Hindi To help students who prefer to lea…
VideoFree12
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Class 11 Physics (India): Volume flow rate and equation of continuity
Sal introduces the notion of moving fluids and laminar flow. Then he uses the incompressibility of a liquid to show that the volume flow ra…
VideoFree10 minutes
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Chemistry: Standard cell potential and the equilibrium constant
Finding the relationship between standard cell potential and equilibrium constant K. Chemistry Did you know that everything is made out of …
VideoFree5 minutes