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: AP Physics 1 review of Energy and Work
In this video David explains the concepts in Work and Energy and does an example problem for each concept. Link for document: https://www.d…
VideoFree12 minutes
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Class 12 Physics (India): Band theory of solids
To understand electrical properties of solids, we need to use Band theory. In this video, we will explore this new theory called Band theor…
VideoFree8
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Class 11 Physics (India) - Hindi: Force of friction keeping the block stationary (Hindi)
Block of wood kept stationary by the force of friction (Correction made in next video). Class 11 Physics (India) - Hindi To help students w…
VideoFree11
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Class 11 Physics (India) - Hindi: Unbalanced forces and motion (Hindi)
Thinking about what is true about how unbalanced forces relate to motion and acceleration. Class 11 Physics (India) - Hindi To help student…
VideoFree8
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Physics: Quantum numbers
Definition of orbital as region of high probability for finding electron, and how quantum numbers are used to describe the orbitals. Compar…
VideoFree12 minutes
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Physics: Electrolyte test (pure water vs. vinegar)
First we attach our galvanometer to a piece of copper and zinc. Then we submerge the metals in pure water and vinegar. What is the differen…
VideoFree1 minute
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Class 11 Physics (India): Limits from tables
Sal finds the limit of 3sin(5x)/sin(2x) at x=0 using a table of values. Class 11 Physics (India) Let's learn, practice, and master topics o…
VideoFree3
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Class 11 Physics (India): Linear expansion numerical
Let's put our linear expansion coefficient to action. In this video we will explore a numerical on linear expansion and see, step by step, …
VideoFree7
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Class 12 Physics (India): Magnetic force between two currents going in opposite directions
Sal shows how to determine the magnetic force between two currents going in opposite directions. Class 12 Physics (India) It is now time to…
VideoFree11 minutes
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Physics: Electrostatic telegraphs (case study)
Long before the internet people thought about sending information along wires using static electricity. Physics Learn about the basic princ…
VideoFree9 minutes
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Class 11 Physics (India): Conservative forces
A conservative force exists when the work done by that force on an object is independent of the object's path. Instead, the work done by a …
VideoFree4 minutes
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Class 11 Physics (India): Solving elastic collision problems the hard way
In this video, David shows how to solve elastic problems the hard way. In other words, using conservation of momentum and conservation of k…
VideoFree16 minutes
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Class 11 Physics (India): Derivative & the direction of a function
Sal analyzes various graphs to find intervals where the derivative of the graphed function is positive or negative. Class 11 Physics (India…
VideoFree3
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Class 10 Physics (India): Advanced sunrise & delayed sunset
Why is the sun squashed during sunrise and sunset? Why do we see the sun even before it rises? Our atmosphere is the main cause of this. We…
VideoFree9
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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…
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