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: Takayasu arteritis
Takayasu arteritis (also known as the pulseless disease) is a type of vasculitis that affects large arteries and leads to significant narro…
VideoFree7 minutes
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Health and medicine: The basal ganglia - Details of the indirect pathway
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 12 Physics (India): Example: Analyzing a more complex resistor circuit
A hairy resistance problem Class 12 Physics (India) It is now time to dive deeper into the world of physics with topics from class 12 (NCER…
VideoFree7 minutes
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Class 11 Physics (India): Impulse and momentum dodgeball example
In this video, David shows how to solve for the impulse and force applied during a dodgeball collision using the impulse momentum relations…
VideoFree11 minutes
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Class 11 Physics (India) - Hindi: Standing waves in closed tubes (Hindi)
Find out why you can make music by blowing into empty bottles. Class 11 Physics (India) - Hindi To help students who prefer to learn by wat…
VideoFree12
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Class 11 Physics (India) - Hindi: Elastic and inelastic collisions (Hindi)
Ram explains what it means for a collision to be elastic or inelastic. Class 11 Physics (India) - Hindi To help students who prefer to lear…
VideoFree14
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Class 12 Physics (India): Heisenberg uncertainty principle
Definition of Heisenberg uncertainty principle. Calculating uncertainty in position given the uncertainty in momentum for Bohr model of hyd…
VideoFree10 minutes
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Class 11 Physics (India) - Hindi: Applying Newton's first law of motion (Hindi)
A little quiz on some of the ideas in Newton's first law. Class 11 Physics (India) - Hindi To help students who prefer to learn by watching…
VideoFree8
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Physics: Loop de loop answer part 2
Figuring out the car's average speed while completing the loop de loop Physics Learn about the basic principles that govern the physical wo…
VideoFree5 minutes
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Class 12 Physics (India): Nuclear stability and nuclear equations
Using the ratio of neutrons to protons to figure out of a nucleus will be stable or radioactive. Class 12 Physics (India) It is now time to…
VideoFree8 minutes
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Physics: Lorentz transformation for change in coordinates
Lorentz transformation for change in coordinates Physics Learn about the basic principles that govern the physical world around us. Solid u…
VideoFree5 minutes
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Class 11 Physics (India) - Hindi: Rotational kinematic formulas (Hindi)
In this video Ram explains the rotational kinematic formulas and does a couple sample problems using them. Class 11 Physics (India) - Hindi…
VideoFree18
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Class 11 Physics (India): Unit circle
Learn how to use the unit circle to define sine, cosine, and tangent for all real numbers. Class 11 Physics (India) Let's learn, practice, …
VideoFree9
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Chemistry: Molecular mass percentage
Calculating the mass percentages of the elements C, H, and O in glucose after calculating the molecular mass of glucose. Chemistry Did you …
VideoFree9 minutes
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Class 11 Physics (India) - Hindi: Harmonic motion part 2 (calculus) (Hindi)
We test whether Acos(wt) can describe the motion of the mass on a spring by substituting into the differential equation F=-kx. Class 11 Phy…
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