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): Worked example: Scaling unit vectors
Watch Sal scale up a unit vector to have a magnitude greater than 1. Class 11 Physics (India) Let's learn, practice, and master topics of c…
VideoFree3
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Health and medicine: Contractility, Ea, and preload effects on PV boxes
See how contractility, Ea (arterial elastance), and preload each have an effect on PV Boxes. Rishi is a pediatric infectious disease physic…
VideoFree13 minutes
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Class 11 Physics (India): Intro to slope
Sal shows how to find the slope of a line. Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (NCERT) st…
VideoFree7
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Class 11 Physics (India): Cross product and torque
The cross product and the direction of torque Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (NCERT)…
VideoFree10 minutes
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Health and medicine: Increasing the heart's force of contraction
Find out exactly how stretch increases force of contraction in end-diastole, whereas more calcium increased force of contraction in end-sys…
VideoFree15 minutes
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Health and medicine: Cardiomyopathy treatment
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: The phototransduction cascade
This explains phototransduction cascade which is critical to our sense of vision. By Ronald Sahyouni. Health and medicine The medical world…
VideoFree10 minutes
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Class 11 Physics (India): Total displacement for projectile
Reconstructing the total displacement vector for a projectile Class 11 Physics (India) Let's learn, practice, and master topics of class 11…
VideoFree14 minutes
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Class 12 Physics (India): Faraday's Law example
Example calculating induced current based on change in flux. Class 12 Physics (India) It is now time to dive deeper into the world of physi…
VideoFree10 minutes
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Electrical engineering: Complex exponential magnitude
A closer look at the complex exponential term in Euler's Formula. We see that it represents a complex number, a distance of 1 from the orig…
VideoFree6 minutes
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Class 11 Physics (India) - Hindi: Choosing kinematic equations (Hindi)
How to set up problems with constant acceleration and choose the best kinematic equation to solve for the target unknown. Class 11 Physics …
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Class 11 Physics (India) - Hindi: Unbalanced forces and motion (Hindi)
Thinking about what is true about how unbalanced forces relate to motion and acceleration. Class 11 Physics (India) - Hindi To help student…
VideoFree8
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Class 11 Physics (India) - Hindi: Finding height of fluid in a barometer (Hindi)
Using our understanding of fluid pressure to figure out the height of a column of mercury. Class 11 Physics (India) - Hindi To help student…
VideoFree10
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Class 11 Physics (India) - Hindi: Distance or arc length from angular displacement (Hindi)
Relating angular displacement to distance traveled or arc length. Class 11 Physics (India) - Hindi To help students who prefer to learn by …
VideoFree11
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Organic chemistry: Preparation of alkyl halides from alcohols
How to convert an alcohol into an alkyl halide. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Bas…
VideoFree9 minutes