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): Space station speed in orbit
Speed necessary for the space station to stay in orbit Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physic…
VideoFree7 minutes
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Class 11 Physics (India): Differentiating products
Sal differentiates eˣcos(x) using the product rule. Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (…
VideoFree4
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Class 11 Physics (India) - Hindi: Work and the work energy principle (Hindi)
Ram explains the link between work and kinetic energy. Class 11 Physics (India) - Hindi To help students who prefer to learn by watching Hi…
VideoFree8
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Electrical engineering: Euler's formula
Euler's formula relates the complex exponential to the cosine and sine functions. This formula is the most important tool in AC analysis. I…
VideoFree9 minutes
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Class 11 Physics (India): Visual understanding of centripetal acceleration formula
Visual understanding of how centripetal acceleration relates to velocity and radius Class 11 Physics (India) Let's learn, practice, and mas…
VideoFree10 minutes
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Class 11 Physics (India): Deriving formula for centripetal acceleration from angular velocity
Deriving formula for centripetal acceleration in terms of angular velocity. using linear speed formula. Class 11 Physics (India) Let's lear…
VideoFree6
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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 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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Class 11 Physics (India) - Hindi: Viscosity and Poiseuille flow (Hindi)
Ram explains the concept of viscosity, viscous force, and Poiseuille's law. Class 11 Physics (India) - Hindi To help students who prefer to…
VideoFree18
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Organic chemistry: Enolate formation from ketones
Forming enolates from ketones using LDA and sodium ethoxide Organic chemistry Sal and Jay cover topics covered in college organic chemistry…
VideoFree10 minutes
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Health and medicine: What is myocarditis and pericarditis?
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree7 minutes
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Health and medicine: What are dementia and Alzheimer's
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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Chemistry: Electron configurations 2
Figuring out configurations for the d-block elements Chemistry Did you know that everything is made out of chemicals? Chemistry is the stud…
VideoFree10 minutes
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Health and medicine: Dissociative shock
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree12 minutes
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Health and medicine: Interpreting the PPD
Find out how the cutoff for a "positive PPD" depends on clinical clues. Rishi is a pediatric infectious disease physician and works at Khan…
VideoFree7 minutes