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: Yo yo in vertical circle example (Hindi)
In this video Ram explains how to find the tension in a string that is whirling a yo-yo in a vertical circle. Class 11 Physics (India) - Hi…
VideoFree11
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Chemistry: 2015 AP Chemistry free response 2f
Solubility of ethanol and ethene gas in water. From 2015 AP Chemistry free response 2f. Chemistry Did you know that everything is made out …
VideoFree5 minutes
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Health and medicine: Assessing alignment of the lateral cervical spine (neck) X-ray
Dr. Mahadevan of Stanford Medical School shows Sal what misalignment in the neck could look like in an X-ray Health and medicine The medica…
VideoFree8 minutes
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Class 11 Physics (India): Acceleration
Calculating the acceleration of a Porsche Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (NCERT) sta…
VideoFree9 minutes
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Class 11 Physics (India): Normal force and contact force
The force that keeps a block of ice from falling towards the center of the earth Class 11 Physics (India) Let's learn, practice, and master…
VideoFree7 minutes
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Class 11 Physics (India): Pressure and Pascal's principle (part 1)
Sal explains the difference between liquids and gasses (both fluids). He then starts a calculation of the work done on a liquid in a U-shap…
VideoFree10 minutes
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Health and medicine: Shock - oxygen delivery and metabolism
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree9 minutes
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Class 11 Physics (India): 2-dimensional momentum problem
An example of conservation of momentum in two dimensions. Class 11 Physics (India) Let's learn, practice, and master topics of class 11 phy…
VideoFree11 minutes
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Class 11 Physics (India): Rotational kinematic formulas
David explains the rotational kinematic formulas and does a couple sample problems using them. Class 11 Physics (India) Let's learn, practi…
VideoFree15 minutes
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Health and medicine: ALS - Amyotrophic lateral sclerosis
Sal explains the disease ALS, amyotrophic lateral sclerosis, and takes the "ice bucket challenge." Health and medicine The medical world ca…
VideoFree4 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 11 Physics (India) - Hindi: Stress Vs Strain Curve (Hindi)
What happens if you stretch something beyond its elastic limits? In this video, we will explore the regions beyond the elastic limits. We w…
VideoFree13
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Class 11 Physics (India) - Hindi: Anomalous expansion of water (Hindi)
Why does ice float on water, how do fishes survive in the cold? In this video Ram discusses about the anomalous behavior of water which hel…
VideoFree10
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Class 11 Physics (India): Newton, Leibniz, and Usain Bolt
Why we study differential calculus. Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (NCERT) starting …
VideoFree9
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Health and medicine: Ischemic core and penumbra
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree5 minutes