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 10 Physics (India): Structure of human eye
Let's explore the major parts of our eye, and see what each one does. Created by Mahesh Shenoy Class 10 Physics (India) Let's explore the m…
VideoFree10
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Class 11 Physics (India): Why distance is area under velocity-time line
Understanding why distance is area under velocity-time line Class 11 Physics (India) Let's learn, practice, and master topics of class 11 p…
VideoFree9 minutes
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Physics: Introduction to tension
An introduction to tension. Solving for the tension(s) in a set of wires when a weight is hanging from them. Physics Learn about the basic …
VideoFree10 minutes
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Class 10 Physics (India): Convex & concave mirror ray diagrams
Let's explore the ray tracing technique to figure out the properties of images when things are kept in front of a concave or a convex mirro…
VideoFree13
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Class 11 Physics (India) - Hindi: Viscosity and Poiseuille flow (Hindi)
Ram explains the concept of viscosity, viscous force, and Poiseuille's law. Class 11 Physics (India) - Hindi To help students who prefer to…
VideoFree18
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Class 11 Physics (India): Two masses hanging from a pulley
In this video David explains how to find the acceleration of two masses hanging from a pulley (using the easy method). Class 11 Physics (In…
VideoFree9 minutes
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Physics: Optimal angle for a projectile part 2: Hangtime
Now it's time to think about hangtime for our far-flung projectile Physics Learn about the basic principles that govern the physical world …
VideoFree4 minutes
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Class 11 Physics (India): Sound Properties: Amplitude, period, frequency, wavelength
How to find the amplitude, period, frequency, and wavelength for a sound wave Class 11 Physics (India) Let's learn, practice, and master to…
VideoFree5 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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Chemistry: Electron configurations 2
Figuring out configurations for the d-block elements Chemistry Did you know that everything is made out of chemicals? Chemistry is the stud…
VideoFree10 minutes
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Chemistry: Balancing another combustion reaction
Balancing the combustion reaction of ethane, C₂H₆ Chemistry Did you know that everything is made out of chemicals? Chemistry is the study o…
VideoFree5 minutes
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Health and medicine: Meet the placenta!
Learn how the needs of the fetus are met by the placenta, which is a special organ that belongs to both the mother and the fetus! Rishi is …
VideoFree13 minutes
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Electrical engineering: Create the motor mounts
Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also have sections that let you get down a…
VideoFree6 minutes
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Electrical engineering: Spider's romance
Happy Valentines Day from Khan Academy Projects Electrical engineering Learn about electricity, circuit theory, and introductory electronic…
VideoFree1 minute
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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