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 12 Physics (India): Electromagnetic waves and the electromagnetic spectrum
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, …
VideoFree11 minutes
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Chemistry: Introduction to chemistry
A big picture view of chemistry and why it is fascinating. How chemistry relates to math and other sciences. Chemistry Did you know that ev…
VideoFree8 minutes
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Class 11 Physics (India) - Hindi: More on Newton's third law (Hindi)
Ram explains some of the common misconceptions in dealing with Newton's Third Law. He also shows how to correctly and reliably identify Thi…
VideoFree13
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Class 11 Physics (India) - Hindi: Potential energy stored in a spring (Hindi)
Work needed to compress a spring is the same as the potential energy stored in the compressed spring. Class 11 Physics (India) - Hindi To h…
VideoFree12
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Class 12 Physics (India): Total internal reflection
Critical incident angle and total internal reflection Class 12 Physics (India) It is now time to dive deeper into the world of physics with…
VideoFree8 minutes
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Health and medicine: Cerebral blood supply: Part 2
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: Hemostasis
Hemostasis is the process which stops bleeding after an injury. Blood vessels are repaired by the creation of a platelet plug during primar…
VideoFree6 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: Diagnosing bipolar disorder
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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Electrical engineering: Chassis modifications
This video shows how Bit-zee's shell was modified to allow space for the bumper switches. Electrical engineering Learn about electricity, c…
VideoFree3 minutes
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Health and medicine: Risk factors for stroke
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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Class 11 Physics (India) - Hindi: Properties of periodic waves (Hindi)
Amplitude, period, frequency and wavelength of periodic waves. How to calculate wave velocity. Class 11 Physics (India) - Hindi To help stu…
VideoFree16
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Health and medicine: Pacemakers
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: Central chemoreceptors
Find out how the your body uses special cells that are central to the brain (inside the brain) to sense levels of CO2 and pH. Rishi is a pe…
VideoFree8 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