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) - Hindi: Period dependence for mass on spring (Hindi)
In this video Ram explains what affects the period of a mass on a spring (i.e. mass and spring constant). He also explains what does not af…
VideoFree9
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Class 12 Physics (India): Electric field direction
The direction of an electrical field at a point is the same as the direction of the electrical force acting on a positive test charge at th…
VideoFree13 minutes
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Health and medicine: Sepsis: Systemic inflammatory response syndrome (SIRS) to multiple organ dysfunction syndrome (MODS)
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: Treatments for depression - Psychological therapies
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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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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Class 10 Physics (India): Dispersion
The index of refraction in a material isn't always the same for every wavelength. This is how prisms split white light into so many colors.…
VideoFree2 minutes
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Class 11 Physics (India) - Hindi: Capillary action and why we see a meniscus (Hindi)
How capillary action and the meniscus are related to intermolecular forces in water. Class 11 Physics (India) - Hindi To help students who …
VideoFree9
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Class 11 Physics (India): Distance or arc length from angular displacement
Relating angular displacement to distance traveled (or arc length) for a ball traveling in a circle. Derivation of formula for arc length. …
VideoFree8
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Health and medicine: Stored elastic energy in large and middle sized arteries
See how arteries behave like sling shots, shooting blood (not rocks) onwards! Rishi is a pediatric infectious disease physician and works a…
VideoFree6 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
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Health and medicine: Thermoregulation by muscles
Why do we shiver when it's cold? How do our muscles make sure we don't freeze or have a heat stroke? Learn how the skin, brain, blood vesse…
VideoFree8 minutes
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Physics: Projectile on an incline
Challenging problem of a projectile on an inclined plane Physics Learn about the basic principles that govern the physical world around us.…
VideoFree18 minutes
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Class 12 Physics (India): Electric field
We can think of the forces between charges as something that comes from a property of space. That property is called the electric field. Cl…
VideoFree14 minutes
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Chemistry: 2015 AP Chemistry free response 2c
Gibbs free energy and equilibrium constant of dehydration reaction. From 2015 AP Chemistry free response 2c. Chemistry Did you know that ev…
VideoFree12 minutes
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Electrical engineering: Camera wiring update
This video shows you how to reduce the complexity of your Bit-zee while improving the speed of your Bit-zee digital camera. Electrical engi…
VideoFree3 minutes