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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Electrical engineering: RC natural response - example
An example of the exponential natural response of an RC circuit, with real component values Electrical engineering Learn about electricity,…
VideoFree3 minutes
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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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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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Physics: Introduction to special relativity and Minkowski spacetime diagrams
Including multiple observers in the "most obvious" way led to some problems. Let's see how we can start to solve those problems by introduc…
VideoFree14 minutes
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Chemistry: Ka and acid strength
How to write an equilibrium expression for an acid-base reaction and how to evaluate the strength of an acid using Ka Chemistry Did you kno…
VideoFree9 minutes
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Class 11 Physics (India): Kinetic molecular theory of gases
Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (NCERT) starting with kinematics and then moving to d…
VideoFree15
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Health and medicine: Regulation of blood pressure with baroreceptors
Learn about how the arteries use nerve impulses to help regulate blood pressure. Rishi is a pediatric infectious disease physician and work…
VideoFree12 minutes
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Class 11 Physics (India) - Hindi: Rolling without slipping (Hindi)
Ram explains how to solve problems where an object rolls without slipping. Class 11 Physics (India) - Hindi To help students who prefer to …
VideoFree18
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Physics: Object image and focal distance relationship (proof of formula)
Object Image and Focal Distance Relationship (Proof of Formula) Physics Learn about the basic principles that govern the physical world aro…
VideoFree12 minutes
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Health and medicine: Neuroplasticity
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: Risk factors for drug use and drug abuse
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree12 minutes
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Electrical engineering: Demo: ant bot
demonstration of a basic ant bot Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also have…
VideoFree1 minute
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Health and medicine: Getting a new heart
Think through the result of getting a new heart, and how the heart can still maintain homeostasis when the nerves are no longer around. Ris…
VideoFree7 minutes
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Health and medicine: Molarity vs. osmolarity
Molarity and osmolarity may sound similar, but they are two distinct concepts. Molarity (M) is the number of moles of solute per liter of s…
VideoFree12 minutes
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Class 11 Physics (India) - Hindi: Conservation of angular momentum (Hindi)
How angular momentum is conserved within a system when there is no external torque. Class 11 Physics (India) - Hindi To help students who p…
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