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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Organic chemistry: Amides, anhydrides, esters, and acyl chlorides
Carboxylic acid derivatives - amides, anhydrides, esters and acyl chlorides. Organic chemistry Sal and Jay cover topics covered in college …
VideoFree9 minutes
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Class 11 Physics (India) - Hindi: Inclined plane force components (Hindi)
Figuring out the components of the force due to gravity that are parallel and perpendicular to the surface of an inclined plane. Class 11 P…
VideoFree12
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Health and medicine: Theories of selective attention
Learn about the three major theories of selective attention. By Carole Yue. Health and medicine The medical world can be a confusing place.…
VideoFree5 minutes
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Class 11 Physics (India): Thermal stress
When a heated glass is suddenly cooled, it shatters. Why? When things are not free to expand, they end up developing stress, called thermal…
VideoFree11
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Class 11 Physics (India) - Hindi: Power (Hindi)
IIII haaaave the powerrrr! Power is the rate at which work is done. Created by Ram Prakash. Class 11 Physics (India) - Hindi To help studen…
VideoFree7
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Class 11 Physics (India): Work/energy problem with friction
A conservation of energy problem where all of the energy is not conserved. Class 11 Physics (India) Let's learn, practice, and master topic…
VideoFree10 minutes
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Class 11 Physics (India): Macrostates and microstates
In physics, a microstate is defined as the arrangement of each molecule in the system at a single instant. A macrostate is defined by the m…
VideoFree18 minutes
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Class 10 Physics (India): Myopia & Hypermetropia
Let's explore the common defects in the eye, myopia (shortsightedness) and hypermetropia (farsightedness), using ray diagrams. Class 10 Phy…
VideoFree10
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Class 11 Physics (India): Basic derivative rules: find the error
Sal analyzes two attempts of students to differentiate linear functions. Class 11 Physics (India) Let's learn, practice, and master topics …
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Class 11 Physics (India) - Hindi: Constructive and Destructive interference (Hindi)
In this video Ram explains how Noise canceling headphones work using constructive and destructive interference. Class 11 Physics (India) - …
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Health and medicine: Heart attack (myocardial infarct) diagnosis
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree11 minutes
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Class 11 Physics (India): Equation for simple harmonic oscillators
David explains the equation that represents the motion of a simple harmonic oscillator and solves an example problem. Class 11 Physics (Ind…
VideoFree14 minutes
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Class 11 Physics (India): Evaluating logarithms (advanced)
Sal evaluates log₂(8), log₈(2), log₂(⅛), and log₈(½). Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics…
VideoFree4
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Class 12 Physics (India): Conductors and insulators
Charge can flow through some materials, but not others Class 12 Physics (India) It is now time to dive deeper into the world of physics wit…
VideoFree14 minutes
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Class 11 Physics (India): Relative velocity in 2D
How fast is the sheep moving as seen by the lion? In previous videos, we have already seen how to calculate relative velocity in 1D. In thi…
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