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: Solving for time
Rate of change in position, or speed, is equal to distance traveled divided by time. To solve for time, divide the distance traveled by the…
VideoFree10 minutes
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Class 11 Physics (India): Undefined limits by direct substitution
Sal gives an example of a limit where direct substitution ends in a quotient with 0 in the denominator and non-0 in the numerator. Such lim…
VideoFree2
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Class 11 Physics (India): Tangent identities: symmetry
Sal finds several trigonometric identities for tangent by considering horizontal and vertical symmetries of the unit circle. Class 11 Physi…
VideoFree7
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Class 12 Physics (India): Triboelectric effect and charge
Learn the physics behind why a balloon clings to things after you rub it on a sweater Class 12 Physics (India) It is now time to dive deepe…
VideoFree12 minutes
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Class 12 Physics (India): Capacitors and capacitance
A basic overview of capacitors and capacitance. By David Santo Pietro. Class 12 Physics (India) It is now time to dive deeper into the worl…
VideoFree6 minutes
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Class 12 Physics (India): Rutherford’s gold foil experiment
Learn about Rutherford's discovery of the nucleus and the development of the nuclear model of the atom. Class 12 Physics (India) It is now …
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): Force of friction keeping the block stationary
Block of wood kept stationary by the force of friction (Correction made in next video) Class 11 Physics (India) Let's learn, practice, and …
VideoFree9 minutes
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Class 11 Physics (India): Moments (part 2)
2 more moment problems. Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (NCERT) starting with kinemat…
VideoFree14 minutes
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Class 12 Physics (India): Forward biasing a PN junction
What happens if we put a voltage across a PN junction? In this video, we will attach metallic contacts at the end of the PN and provide a v…
VideoFree7
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Class 12 Physics (India): Kirchhoff's current law
Kirchhoff's Current Law says the currents flowing into a node must add up to zero. Class 12 Physics (India) It is now time to dive deeper i…
VideoFree6 minutes
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Class 11 Physics (India): Distance and displacement introduction
An introduction to the difference between distance traveled and displacement. Class 11 Physics (India) Let's learn, practice, and master to…
VideoFree4
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Class 12 Physics (India): Transistor as a voltage amplifier
We will explore what it means to amplify a signal mathematically, and then see how our transistor does voltage amplification. We will also …
VideoFree12
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Physics: Multiple lens systems
Some examples of using the thin lens equation with multiple lenses Physics Learn about the basic principles that govern the physical world …
VideoFree14 minutes
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Class 11 Physics (India) - Hindi: Radius from velocity and angular velocity (Hindi)
Radius from velocity and angular velocity. Class 11 Physics (India) - Hindi To help students who prefer to learn by watching Hindi videos, …
VideoFree4