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): Worked example: matching an input to a function's output (graph)
Sal finds the input value for which g(x)=-2 given the graph of g. Class 11 Physics (India) Let's learn, practice, and master topics of clas…
VideoFree1
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AP®︎ Physics 1: Parallel resistors (part 1)
Resistors are in parallel if their terminals are connected to the same two nodes. The equivalent single parallel resistance is smaller than…
VideoFree11 minutes
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Class 11 Physics (India) - Hindi: Cross product and torque (Hindi)
The cross product and the direction of torque. Class 11 Physics (India) - Hindi To help students who prefer to learn by watching Hindi vide…
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Class 12 Physics (India): Deriving prism formula
What makes the 22 degrees halo, 22 degrees? Let's derive an expression for the angle of minimum deviation. Class 12 Physics (India) It is n…
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Class 11 Physics (India) - Hindi: Surface Tension and Adhesion (Hindi)
Ram explains the concepts of surface tension, cohesion, and adhesion. Class 11 Physics (India) - Hindi To help students who prefer to learn…
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Class 12 Physics (India): Cartesian sign conventions mirrors
Let's explore how we can generalize the mirror formula by introducing cartesian sign conventions. Class 12 Physics (India) It is now time t…
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Organic chemistry: Preparation of acyl (acid) chlorides
How to prepare acyl (acid) chlorides using thionyl chloride. Organic chemistry Sal and Jay cover topics covered in college organic chemistr…
VideoFree10 minutes
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Organic chemistry: Drawing chair conformations
How to draw both chair conformations of cyclohexane Organic chemistry Sal and Jay cover topics covered in college organic chemistry course.…
VideoFree11 minutes
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Class 12 Physics (India): Proof: Field from infinite plate (part 2)
We see that the infinite, uniformly charged plate generates a constant electric field (independent of the height above the plate) Class 12 …
VideoFree11 minutes
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Organic chemistry: Common mistakes when drawing resonance structures
How to avoid common mistakes when drawing resonance structures Organic chemistry Sal and Jay cover topics covered in college organic chemis…
VideoFree8 minutes
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Class 11 Physics (India): LOL diagrams
David shows how LOL diagrams allow us to visually represent what we mean by conservation of energy as well as what we mean by an energy sys…
VideoFree15 minutes
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Chemistry: Conjugate acid-base pairs
Introduction to conjugate acid-base pairs. Definition and examples of conjugate acid-base pairs. Chemistry Did you know that everything is …
VideoFree8 minutes
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Organic chemistry: Proton NMR practice 2
More practice determining the structure of a molecule from the molecular formula, hydrogen deficiency index, and proton NMR spectrum. Uses …
VideoFree14 minutes
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Chemistry: Electronegativity and bonding
Electronegativity differences in bonding using the Pauling scale. Classifying bonds as covalent, polar covalent, or ionic. Chemistry Did yo…
VideoFree12 minutes
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Organic chemistry: Halogenation
Halogenation is a reaction that occurs when one or more halogens are added to a substance. Halogens comprise the seventh column in the peri…
VideoFree8 minutes