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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Physics: Compass build (stroke direction)
Does the direction which we stroke the needle determine the final orientation? Physics Learn about the basic principles that govern the phy…
VideoFree1 minute
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Health and medicine: Treatment of malaria
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree9 minutes
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Health and medicine: Pertussis vaccine
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree5 minutes
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Health and medicine: Normal colon tissue
Dr. Andy Connolly from Stanford Medical School introduces Sal to what normal colon tissue looks like Health and medicine The medical world …
VideoFree12 minutes
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Physics: Question 3a: 2015 AP Physics 1 free response
Graphing energy versus position for a block accelerated by a spring and stopped by friction. Physics Learn about the basic principles that …
VideoFree8 minutes
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Class 11 Physics (India): Worked example: motion problems (with definite integrals)
What can you say about the velocity and position of a particle given its acceleration. Class 11 Physics (India) Let's learn, practice, and …
VideoFree9
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Class 11 Physics (India): Thermal expansion of ring
How much does the ring expand on heating. This is a problem that seems quite complicated, but it's actually a linear expansion problem. In …
VideoFree12
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Physics: Optimal angle for a projectile part 3: Horizontal distance as a function of angle (and speed)
In this video, we'll finish writing the formula for distance as a function of the angle Physics Learn about the basic principles that gover…
VideoFree3 minutes
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Physics: Starting to set up a Newtonian path–time diagram
We introduce a graph that's a lot like your good old position-vs-time graph—but with a twist! Physics Learn about the basic principles that…
VideoFree8 minutes
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Health and medicine: Neuron resting potential description
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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Class 11 Physics (India) - Hindi: Solved example: strength of femur (Hindi)
How much weight can our thigh bone withstand? In this video, we will calculate the maximum force our thigh bone can withstand. The answer m…
VideoFree5
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Class 12 Physics (India): Calculating dot and cross products with unit vector notation
Calculating the dot and cross products when vectors are presented in their x, y, and z (or i, j, and k) components. Class 12 Physics (India…
VideoFree10 minutes
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Class 11 Physics (India): Limit expression for the derivative of a linear function
Sal interprets a limit expression as the derivative of a linear function at a point, and evaluates it. Class 11 Physics (India) Let's learn…
VideoFree5
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Class 11 Physics (India) - Hindi: More on Normal force (shoe on floor) (Hindi)
Ram explains how to determine the normal force for a variety of scenarios (extra forces, diagonal forces, acceleration) involving a shoe on…
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Class 11 Physics (India): Power
IIII haaaave the powerrrr! Power is the rate at which work is done. Class 11 Physics (India) Let's learn, practice, and master topics of cl…
VideoFree6 minutes