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: Emotions: cerebral hemispheres and prefrontal cortex
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree11 minutes
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Health and medicine: End diastolic pressure-volume relationship (EDPVR)
Find out what happens when the left ventricle is not allowed to contract, and instead you simply add and take away blood from it. Rishi is …
VideoFree10 minutes
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Class 11 Physics (India): Doppler effect formula for observed frequency
Let's derive the formula for how the perceived frequency of a sound changes when its source is moving toward you Class 11 Physics (India) L…
VideoFree10 minutes
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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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Health and medicine: A race to keep pace!
Find out how the various pacemaker cells in the heart actually race against the clock to try to keep pace for the heart, and how the heart …
VideoFree13 minutes
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Health and medicine: Shunting in the heart
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: Patent ductus arteriosus
Patent ductus arteriosus is a medical condition where a blood vessel called the ductus arteriosus does not permanently close after birth. L…
VideoFree10 minutes
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Class 11 Physics (India): The force of tension
David explains what the force of tension is, how to solve for it, and some common misconceptions involving the force of tension. Class 11 P…
VideoFree14 minutes
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Health and medicine: Multiple sclerosis treatment
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree6 minutes
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Chemistry: Limiting reactant example problem 1
A limiting reagent problem to calculate mass of product and mass of excess reactant leftover after reaction. Chemistry Did you know that ev…
VideoFree19 minutes
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Class 11 Physics (India): Thermodynamics part 3: Kelvin scale and Ideal gas law example
Sal makes the case for the Kelvin scale of temperature and absolute zero by showing that temperature is proportional to kinetic energy. The…
VideoFree10 minutes
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Health and medicine: Leukemia treatment
There are three main solutions to treat leukemia. Chemotherapy is a collection of drugs which target cells that rapidly multiply (a key cha…
VideoFree6 minutes
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Organic chemistry: Enolate formation from aldehydes
How to form enolates from aldehydes using sodium ethoxide and sodium hydride. Organic chemistry Sal and Jay cover topics covered in college…
VideoFree6 minutes
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Class 11 Physics (India) - Hindi: Centripetal force problem solving (Hindi)
In this video, Ram gives some problem-solving strategies for centripetal force problems and explains many common misconceptions people have…
VideoFree17
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Class 12 Physics (India): Electric potential energy (part 2-- involves calculus)
Electric potential energy difference in a varying field Class 12 Physics (India) It is now time to dive deeper into the world of physics wi…
VideoFree10 minutes