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): 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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Class 11 Physics (India): 𝘶-substitution: multiplying by a constant
Manipulating the expression to make u-substitution a little more obvious. Class 11 Physics (India) Let's learn, practice, and master topics…
VideoFree6
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Class 11 Physics (India) - Hindi: Work as the transfer of energy (Hindi)
Ram explains "work" as the way forces transfer energy to and from objects. Class 11 Physics (India) - Hindi To help students who prefer to …
VideoFree5
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Physics: Mechanical advantage (part 3)
Introduction to pulleys and wedges Physics Learn about the basic principles that govern the physical world around us. Solid understanding o…
VideoFree11 minutes
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Organic chemistry: Alkyl halide nomenclature and classification
Common and IUPAC nomenclature of alkyl halides. Classifying primary, secondary, and tertiary alkyl halides. Organic chemistry Sal and Jay c…
VideoFree11 minutes
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Class 11 Physics (India) - Hindi: Derivation of beat frequency formula (Hindi)
In this video Ram derives the formula for beat frequency. Class 11 Physics (India) - Hindi To help students who prefer to learn by watching…
VideoFree11
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Class 12 Physics (India): Polarization of light, linear and circular
This is the underlying physics behind 3D glasses Class 12 Physics (India) It is now time to dive deeper into the world of physics with topi…
VideoFree15 minutes
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Physics: Battery meter (galvanometer)
Simple device which we can use to measure our homemade batteries. You can test it with any household battery first. What does this deflecti…
VideoFree1 minute
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Physics: Electrolyte (temperature test)
Here we experiment with hot vs. cold vinegar as our electrolyte. Does the deflection in our galvanometer depend on temperature? Why? Physic…
VideoFree2 minutes
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Chemistry: Rate constant k from half-life example
Example problem showing how to find the rate constant k from the half-life of a first order reaction. Chemistry Did you know that everythin…
VideoFree6 minutes
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Organic chemistry: Electrophilic aromatic substitution mechanism
The general reaction and mechanism of electrophilic aromatic substitution. Organic chemistry Sal and Jay cover topics covered in college or…
VideoFree7 minutes
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Class 11 Physics (India): Vector magnitude from components
Sal finds the magnitude of a vector given its components of (5, -3). Class 11 Physics (India) Let's learn, practice, and master topics of c…
VideoFree3
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Class 11 Physics (India): Avogadro's law
Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (NCERT) starting with kinematics and then moving to d…
VideoFree8
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Class 11 Physics (India): Bernoulli's equation (part 4)
Clarification of, and more thoughts on, the Bernoulli's equation example problem where liquid exits a hole in a container. Class 11 Physics…
VideoFree5 minutes
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Class 12 Physics (India): Emission spectrum of hydrogen
Using Balmer-Rydberg equation to solve for photon energy for n=3 to 2 transition. Solving for wavelength of a line in UV region of hydrogen…
VideoFree11 minutes