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: Position-time graphs (Hindi)
Using position-time graphs and number lines to find displacement and distance travelled. Class 11 Physics (India) - Hindi To help students …
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Class 10 Physics (India): Magnification formula for mirrors
Let's explore how to calculate image height and it's nature (real or virtual) using magnification formula Created by Mahesh Shenoy Class 10…
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Class 11 Physics (India) - Hindi: Breaking down forces for free body diagrams (Hindi)
Ram explains how to draw free body diagrams when forces are applied at an angle. How to find horizontal and vertical components of an angle…
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Class 11 Physics (India) - Hindi: Gravity for astronauts in orbit (Hindi)
Why do astronauts appear weightless despite being near the Earth? Class 11 Physics (India) - Hindi To help students who prefer to learn by …
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Class 11 Physics (India): Vector magnitude from graph
Sal finds the magnitude of a vector given its graph. Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics …
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Class 11 Physics (India): More on internal energy
Getting more intuition of internal energy, heat, and work. Examples of using the first law to calculate work. Class 11 Physics (India) Let'…
VideoFree14 minutes
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Health and medicine: Obstructive shock
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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Class 12 Physics (India): More exponential decay examples
A few more examples of exponential decay. Practice calculating k from half-life, and calculating initial mass. Class 12 Physics (India) It …
VideoFree7 minutes
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Class 11 Physics (India): Vectors word problem: pushing a box
Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (NCERT) starting with kinematics and then moving to d…
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Class 11 Physics (India): Projectile motion graphs
Visualizing position, velocity and acceleration in two-dimensions for projectile motion Class 11 Physics (India) Let's learn, practice, and…
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Class 12 Physics (India): Thin lenses in contact
Let's figure out the effective focal length when thin lenses are in contact. Class 12 Physics (India) It is now time to dive deeper into th…
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Organic chemistry: Cyclic ethers and epoxide naming
Cyclic ethers and epoxide naming. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understandi…
VideoFree8 minutes
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Health and medicine: TB epidemiology
Find out how many lives are affected by TB around the world. Rishi is a pediatric infectious disease physician and works at Khan Academy. T…
VideoFree6 minutes
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Class 12 Physics (India): Lenz's Law
Lenz's Law - seeing that the magnetic field induced by a current induced by a change in magnetic flux (Faraday's Law) counteracts the chang…
VideoFree6 minutes
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Organic chemistry: E2 elimination: Substituted cyclohexanes
Examples of E2 elimination reactions involving substituted cyclohexanes. Organic chemistry Sal and Jay cover topics covered in college orga…
VideoFree13 minutes