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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Health and medicine: Somatosensation
Explore our ability to sense the environment through our body. By Ron. Health and medicine The medical world can be a confusing place. Pati…
VideoFree8 minutes
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Class 11 Physics (India): Limits from tables
Sal finds the limit of 3sin(5x)/sin(2x) at x=0 using a table of values. Class 11 Physics (India) Let's learn, practice, and master topics o…
VideoFree3
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Class 11 Physics (India): Rolling without slipping problems
David explains how to solve problems where an object rolls without slipping. Class 11 Physics (India) Let's learn, practice, and master top…
VideoFree15 minutes
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Health and medicine: Reiter's syndrome
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree8 minutes
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Health and medicine: Precocious puberty
At Stanford Medical School with Morgan Theis talking to Dr. Laura Bachrach talking about precocious puberty Health and medicine The medical…
VideoFree10 minutes
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Health and medicine: Electrical system of the heart
See where the pacemaker cells start the electrical wave of depolarization, and how it gets all the way to the ventricles of the heart. Rish…
VideoFree10 minutes
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Class 12 Physics (India): Calculating dot and cross products with unit vector notation
Calculating the dot and cross products when vectors are presented in their x, y, and z (or i, j, and k) components. Class 12 Physics (India…
VideoFree10 minutes
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Organic chemistry: Nucleophilicity vs. basicity
Nucleophilicity vs. Basicity . The difference between what it means to be a nucleophile and a base Organic chemistry Sal and Jay cover topi…
VideoFree13 minutes
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Class 11 Physics (India): Worked example: finding unit vector with given direction
Learn what a unit vector is and how to find a unit vector in the direction of a given vector. Class 11 Physics (India) Let's learn, practic…
VideoFree5
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Electrical engineering: Click n' stick base & batteries
In this video we show you how to connect Spider's motors to his tap light base. Electrical engineering Learn about electricity, circuit the…
VideoFree3 minutes
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Class 11 Physics (India): Spring potential energy example (mistake in math)
A spring, a frozen loop-d-loop and more! (See if you can find the mistake I made and get the right answer!) Class 11 Physics (India) Let's …
VideoFree10 minutes
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Class 11 Physics (India) - Hindi: Standing waves in open tubes (Hindi)
Find out why a flute makes such specific notes. Class 11 Physics (India) - Hindi To help students who prefer to learn by watching Hindi vid…
VideoFree12
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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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Health and medicine: Gestalt principles
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree8 minutes
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Health and medicine: Heart attack (myocardial infarct) medications
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree6 minutes