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 12 Physics (India): Extrinsic semiconductors P-type
In this video, we will explore the P-type semiconductors. Class 12 Physics (India) It is now time to dive deeper into the world of physics …
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Class 11 Physics (India): Rain man problem
If you are riding a bike in the rain, how would you hold an umbrella? Would you point it vertically upwards? This is a classic physics puzz…
VideoFree7
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Class 11 Physics (India): Projectile at an angle
Figuring out the horizontal displacement for a projectile launched at an angle Class 11 Physics (India) Let's learn, practice, and master t…
VideoFree13 minutes
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Class 12 Physics (India): De Broglie wavelength
In this video, David explains how Louis De Broglie got his Nobel Prize for the idea of matter having a wavelength. Class 12 Physics (India)…
VideoFree11 minutes
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Physics: Question 2cd: 2015 AP Physics 1 free response
Testing if a bulb is nonohmic. Physics Learn about the basic principles that govern the physical world around us. Solid understanding of al…
VideoFree10 minutes
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Class 11 Physics (India): Tension in an accelerating system and pie in the face
The second part to the complicated problem. We figure out the tension in the wire connecting the two masses. Then we figure out how much we…
VideoFree9 minutes
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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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Physics: Question 3b: 2015 AP Physics 1 free response
How doubling spring compression impacts stopping distance Physics Learn about the basic principles that govern the physical world around us…
VideoFree6 minutes
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Class 11 Physics (India): The derivative of x² at any point using the formal definition
Sal finds the limit expression for the derivative of f(x)=x² at any point x and simplifies it into a simpler expression (spoiler: it's 2x).…
VideoFree11
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Physics: Introduction to tension (part 2)
A slightly more difficult tension problem. Physics Learn about the basic principles that govern the physical world around us. Solid underst…
VideoFree10 minutes
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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 12 Physics (India): Electric potential energy (part 2-- involves calculus)
Electric potential energy difference in a varying field Class 12 Physics (India) It is now time to dive deeper into the world of physics wi…
VideoFree10 minutes
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Class 11 Physics (India): Bouncing fruit collision example
David shows how to use conservation of momentum for a situation where two objects bounce off of each other. Class 11 Physics (India) Let's …
VideoFree9 minutes
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Electrical engineering: Secure and wire the motors
Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also have sections that let you get down a…
VideoFree4 minutes
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Class 11 Physics (India): Unit vectors intro
Unit vectors are vectors whose magnitude is exactly 1 unit. They are very useful for different reasons. Specifically, the unit vectors [0,1…
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