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): Center of mass
Sal gives a conceptual understanding of what center of mass means. Class 11 Physics (India) Let's learn, practice, and master topics of cla…
VideoFree10 minutes
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Organic chemistry: Decarboxylation
The decarboxylation (loss of carbon dioxide) of malonic acid and a beta-keto acid. Organic chemistry Sal and Jay cover topics covered in co…
VideoFree7 minutes
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Class 11 Physics (India) - Hindi: Horizontally launched projectile (Hindi)
In this video Ram explains how to solve for the horizontal displacement when the projectile starts with a horizontal initial velocity. He a…
VideoFree12
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Class 11 Physics (India): Why distance is area under velocity-time line
Understanding why distance is area under velocity-time line Class 11 Physics (India) Let's learn, practice, and master topics of class 11 p…
VideoFree9 minutes
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Class 11 Physics (India) - Hindi: Rotational kinetic energy (Hindi)
In this video Ram explains what rotational kinetic energy is and how to calculate it. Class 11 Physics (India) - Hindi To help students who…
VideoFree16
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Organic chemistry: Naming alkenes examples
Naming Alkenes Examples Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of basi…
VideoFree8 minutes
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Organic chemistry: Alcohol nomenclature
Rules for naming alcohols. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of b…
VideoFree12 minutes
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Health and medicine: Muscle stretch reflex
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree10 minutes
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Health and medicine: Streptococcus pneumoniae and flu vaccines
Why do we need a new flu vaccine every year? Learn about the pneumonia and flu vaccines and how they help your body fight off infection. He…
VideoFree7 minutes
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Health and medicine: Clinical progression of multiple sclerosis
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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Health and medicine: Decay and interference
Learn about decay and interference in human memory. Health and medicine The medical world can be a confusing place. Patients, their familie…
VideoFree5 minutes
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Class 11 Physics (India) - Hindi: Doppler effect for a moving observer (Hindi)
What happens when just the observer is moving? Class 11 Physics (India) - Hindi To help students who prefer to learn by watching Hindi vide…
VideoFree7
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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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Organic chemistry: Intro to organic mechanisms
Identifying electrophiles and nucleophiles. Showing movement of electrons using curved arrows. Organic chemistry Sal and Jay cover topics c…
VideoFree12 minutes
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Organic chemistry: Nomenclature and properties of acyl (acid) halides and acid anhydrides
How to name acyl (acid) chlorides and acid anhydrides and how to analyze their physical properties. Organic chemistry Sal and Jay cover top…
VideoFree10 minutes