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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Physics: Electromagnetic field (above vs. below)
Testing the direction of force when the current carrying wire is above vs. below a compass. What does this tell us? Physics Learn about the…
VideoFree
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Class 12 Physics (India): Electric current
Current is the flow of charge. We measure current by counting the amount of charge passing through a boundary in one second. Class 12 Physi…
VideoFree9 minutes
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Class 12 Physics (India): Mass spectrometer
Class 12 Physics (India) It is now time to dive deeper into the world of physics with topics from class 12 (NCERT) such as electrostatics, …
VideoFree12
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Class 11 Physics (India): Stress & strain
To measure the elasticity of any material we need to define two quantities. Stress and strain. In this video let's explore what these are a…
VideoFree11
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Health and medicine: Biliary tree
The biliary tree (also known as the biliary tract or biliary system) is comprised of the gallbladder, liver and bile ducts. These structure…
VideoFree6 minutes
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Chemistry: Van der Waals equation
The Van der Waals equation as an adjustment of the ideal gas equation to better account for gas molecule volume and intermolecular interact…
VideoFree10 minutes
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Health and medicine: Cardiomyopathy treatment
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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Chemistry: Introduction to entropy
Introduction to entropy, and how entropy relates to the number of possible states for a system. Chemistry Did you know that everything is m…
VideoFree7 minutes
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Health and medicine: What is asperger syndrome?
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree10 minutes
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Health and medicine: What is gonorrhea?
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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Chemistry: The periodic table - transition metals
The definition of a transition metal, and how to write the electron configuration including examples for Fe and Zn. Chemistry Did you know …
VideoFree6 minutes
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Organic chemistry: Syn dihydroxylation
Reactions that add two hydroxyls to the same face of an alkene double bond as it's converted to a single bond. Organic chemistry Sal and Ja…
VideoFree14 minutes
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Health and medicine: Diagnosing strokes by history and physical exam
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree5 minutes
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Health and medicine: Diabetic nephropathy - Mechanisms
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree10 minutes
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Health and medicine: Arteriosclerosis, arteriolosclerosis, and atherosclerosis
Learn the difference between Arteriosclerosis, Arteriolosclerosis, and Atherosclerosis! Rishi is a pediatric infectious disease physician a…
VideoFree9 minutes