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): Area between a curve and the x-axis: negative area
With integrals, it can be helpful to introduce the notion of "negative area". See why! Class 11 Physics (India) Let's learn, practice, and …
VideoFree7
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Organic chemistry: Formation of hydrates
How ketones and aldehydes react with water to form hydrates. Organic chemistry Sal and Jay cover topics covered in college organic chemistr…
VideoFree7 minutes
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Organic chemistry: Carboxylic acid introduction
Carboxylic acid introduction. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understanding o…
VideoFree9 minutes
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Chemistry: pKa and pKb relationship
The Ka and Kb relationship and pKa and pKb relationship between conjugate acids and bases. Chemistry Did you know that everything is made o…
VideoFree15 minutes
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Class 11 Physics (India): Proof: Volume ratios in a Carnot cycle
Proof of the volume ratios in a Carnot cycle Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (NCERT) …
VideoFree17 minutes
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Class 11 Physics (India): 𝑒 as a limit
Sal continues the discussion on e, this time digging deeper into the mathematical definition of 𝑒. Class 11 Physics (India) Let's learn, pr…
VideoFree6
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Class 11 Physics (India): Energy graphs for simple harmonic motion
Sal graphs elastic potential energy and kinetic energy for a mass on a spring and compares the total energy when with and without dissipati…
VideoFree6
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Class 11 Physics (India): Bowling ball in vertical loop
In this video David explains how to find the normal force on a bowling ball rolling in a vertical loop. Class 11 Physics (India) Let's lear…
VideoFree9 minutes
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Physics: Object image height and distance relationship
Object Image Height and Distance Relationship Physics Learn about the basic principles that govern the physical world around us. Solid unde…
VideoFree2 minutes
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Class 12 Physics (India): Simple microscope
Let's explore how a magnifying glass (simple microscope) really works. Class 12 Physics (India) It is now time to dive deeper into the worl…
VideoFree14
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Organic chemistry: Intermolecular forces
Different types of intermolecular forces (forces between molecules). Organic chemistry Sal and Jay cover topics covered in college organic …
VideoFree9 minutes
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Class 11 Physics (India): Newton's second law of motion
Newton's second law of motion is F = ma, or force is equal to mass times acceleration. Learn how to use the formula to calculate accelerati…
VideoFree7 minutes
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Electrical engineering: Application of the fundamental laws (solve)
We solve the equations created by direct application of the fundamental laws: Ohm's Law and Kirchhoff's Laws. (Part 2 of 2) Electrical engi…
VideoFree9 minutes
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Chemistry: Limiting reactant example problem 1
A limiting reagent problem to calculate mass of product and mass of excess reactant leftover after reaction. Chemistry Did you know that ev…
VideoFree19 minutes
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Organic chemistry: IR spectra for hydrocarbons
Interpreting IR spectra of hydrocarbons containing single, double, and triple carbon-carbon bonds. Organic chemistry Sal and Jay cover topi…
VideoFree13 minutes