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): 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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Physics: Update and modify your ping pong ball launcher
We upgrade our ping pong ball launcher to make it safer, more accurate and more reliable. Physics Learn about the basic principles that gov…
VideoFree11 minutes
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Class 11 Physics (India) - Hindi: Relationship between angular velocity and speed (Hindi)
How angular velocity relates to speed. Class 11 Physics (India) - Hindi To help students who prefer to learn by watching Hindi videos, we'v…
VideoFree10
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Class 11 Physics (India) - Hindi: Linear expansion (Hindi)
In this video Ram quantifies by how much will a wire expand when heated. Class 11 Physics (India) - Hindi To help students who prefer to le…
VideoFree14
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Class 11 Physics (India) - Hindi: Intuition on static and kinetic friction comparisons (Hindi)
Why static friction is harder to overcome than kinetic friction. Class 11 Physics (India) - Hindi To help students who prefer to learn by w…
VideoFree7
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Class 12 Physics (India): Current through resistor in parallel: Worked example
How to calculate the current through a resistor in parallel using equivalent resistance and Ohm's law. Class 12 Physics (India) It is now t…
VideoFree5
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Class 11 Physics (India) - Hindi: Static and kinetic friction example (Hindi)
Thinking about the coefficients of static and kinetic friction. Class 11 Physics (India) - Hindi To help students who prefer to learn by wa…
VideoFree11
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Class 12 Physics (India): Simple microscope
Let's explore how a magnifying glass (simple microscope) really works. Class 12 Physics (India) It is now time to dive deeper into the worl…
VideoFree14
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Class 11 Physics (India) - Hindi: Newton's third law of motion (Hindi)
Every action has an equal and opposite reaction. Class 11 Physics (India) - Hindi To help students who prefer to learn by watching Hindi vi…
VideoFree8
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Class 11 Physics (India): Solved example: strength of femur
How much weight can our thigh bone withstand? In this video, we will calculate the maximum force our thigh bone can withstand. The answer m…
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Class 12 Physics (India): Intro to semiconductors
Why are we obsessed with semiconductors? All our computers and digital devices are made from semiconductors. But what is so special about t…
VideoFree8
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Physics: How much electrolyte does a single cell need?
Observation: when we pull our cell out of the electrolyte it still causes a deflection, which increases when pressure is applied. How could…
VideoFree1 minute
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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 11 Physics (India): Formal definition of the derivative as a limit
The derivative of function f at x=c is the limit of the slope of the secant line from x=c to x=c+h as h approaches 0. Symbolically, this is…
VideoFree16
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Class 11 Physics (India): Thermal expansion in gas
How to quantify thermal expansion coefficient for gases? Gases are little different than solids and liquids because they neither have defin…
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