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: Parabolic mirrors 2
Parabolic Mirrors 2 Physics Learn about the basic principles that govern the physical world around us. Solid understanding of algebra and a…
VideoFree13 minutes
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Class 11 Physics (India) - Hindi: Thermal stress (Hindi)
When you pour very hot water into a glass then it might shatter sometime. This thermal shock results from thermal stress generated due to r…
VideoFree10
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Chemistry: Concentration cell
Concentration cells are galvanic (or voltaic) cells made of two half-cells, each of which containing the same electrodes, but different con…
VideoFree10 minutes
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Class 11 Physics (India): Graph of y=sin(x)
The graph of y=sin(x) is like a wave that forever oscillates between -1 and 1, in a shape that repeats itself every 2π units. Specifically,…
VideoFree9
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Electrical engineering: Tools and parts to build a Spout
Make Spout a low cost beetle bot that can avoid obstacles. Spout is low cost and can be made without solder. Electrical engineering Learn a…
VideoFree1 minute
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Electrical engineering: 5 volt power distribution board
In this video we hack apart a bread board to create a 5 volt power distribution strip. The 5 volts comes from the center pin in the motor c…
VideoFree5 minutes
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Chemistry: Bond enthalpy and enthalpy of reaction
Introduction to bond enthalpy, and how to use bond enthalpies to calculate enthalpy of reaction. Chemistry Did you know that everything is …
VideoFree12 minutes
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Class 11 Physics (India) - Hindi: Introduction to torque (Hindi)
An introduction to torque. Class 11 Physics (India) - Hindi To help students who prefer to learn by watching Hindi videos, we've created th…
VideoFree11
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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…
VideoFree11
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Class 11 Physics (India) - Hindi: Properties of periodic waves (Hindi)
Amplitude, period, frequency and wavelength of periodic waves. How to calculate wave velocity. Class 11 Physics (India) - Hindi To help stu…
VideoFree16
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Class 11 Physics (India): Ice accelerating down an incline
Figuring out the acceleration of ice down a plane made of ice Class 11 Physics (India) Let's learn, practice, and master topics of class 11…
VideoFree11 minutes
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Class 12 Physics (India): Red shift
Class 12 Physics (India) It is now time to dive deeper into the world of physics with topics from class 12 (NCERT) such as electrostatics, …
VideoFree10 minutes
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Health and medicine: Inflammation
Dr. David Agus talks about inflammation (while Sal repeatedly misspells it with one "m") Health and medicine The medical world can be a con…
VideoFree9 minutes
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Electrical engineering: What is inside a DVD player? (5 of 5)
In this video we explore the laser assembly inside a DVD player. Electrical engineering Learn about electricity, circuit theory, and introd…
VideoFree3 minutes
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Class 11 Physics (India): Intro to vectors and scalars
The difference between vectors and scalars. Introduction to distance, displacement, speed, and velocity. Class 11 Physics (India) Let's le…
VideoFree9 minutes