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): Pressure at a depth in a fluid
Sal derives the formula to determine the pressure at a specific depth in a fluid. Class 11 Physics (India) Let's learn, practice, and maste…
VideoFree10 minutes
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Class 11 Physics (India): Limits by direct substitution
Sal explains how you can easily find limits of functions at points where the functions are continuous: simply plug in the x-value into the …
VideoFree2
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Organic chemistry: Ring opening reactions of epoxides: Acid-catalyzed
How acid-catalyzed reactions can open the highly strained ring of an epoxide. Organic chemistry Sal and Jay cover topics covered in college…
VideoFree9 minutes
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Class 11 Physics (India) - Hindi: Race cars with constant speed around curve (Hindi)
When acceleration could involve a change in direction and not speed. Class 11 Physics (India) - Hindi To help students who prefer to learn …
VideoFree6
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Physics: Increase strength of magnet
How can we increase the strength of a bar magnet using a piece of steel? Why is it stronger? Physics Learn about the basic principles that …
VideoFree1 minute
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Class 11 Physics (India): Worked example: Derivative of cos³(x) using the chain rule
f(x)=cos³(x) is a composition of the functions x³ and cos(x), and therefore we can differentiate it using the chain rule. Class 11 Physics …
VideoFree9
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Chemistry: VSEPR for 5 electron clouds
VSEPR for molecules with five electron clouds including examples for trigonal bipyramidal and seesaw-shaped molecules. Chemistry Did you kn…
VideoFree15 minutes
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Chemistry: Zero-order reaction (with calculus)
Deriving the integrated rate law for zeroth order reactions using calculus. How you can graph zero order rate data to see a linear relation…
VideoFree10 minutes
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Organic chemistry: Functional groups
An overview of some common functional groups Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic …
VideoFree7 minutes
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Chemistry: Nernst equation
Deriving a few different forms of the Nernst equation, the relationship between Gibbs free energy and reaction quotient Q. Chemistry Did yo…
VideoFree7 minutes
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Chemistry: Titration of a strong acid with a strong base
In a strong acid-strong base titration, the acid and base will react to form a neutral solution. At the equivalence point of the reaction, …
VideoFree10 minutes
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Chemistry: Drawing dot structures
Guidelines for drawing Lewis dot structures. Chemistry Did you know that everything is made out of chemicals? Chemistry is the study of mat…
VideoFree15 minutes
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Organic chemistry: Nomenclature and preparation of epoxides
Naming of epoxides (cyclic ethers with three atoms in the ring). Preparation of epoxides from alkenes. Organic chemistry Sal and Jay cover …
VideoFree9 minutes
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Physics: Projectile motion (part 4)
Solving for time when you are given the change in distance, acceleration, and initial velocity Physics Learn about the basic principles tha…
VideoFree9 minutes
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Class 11 Physics (India): Mild and medium tension
David explains how to solve tension problems for hanging objects. Class 11 Physics (India) Let's learn, practice, and master topics of clas…
VideoFree18 minutes