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 11 Physics (India) - Hindi: Treating systems the easy way (Hindi)
Ram shows the easier way to find the acceleration of two masses connected by a rope. Class 11 Physics (India) - Hindi To help students who …
VideoFree14
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Class 11 Physics (India): Vector addition & magnitude
Sal explains some interesting properties of the magnitude of vector sums. Class 11 Physics (India) Let's learn, practice, and master topics…
VideoFree6
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Class 12 Physics (India): Young's double slit equation
Let's derive a formula that relates all the variables in Young's double slit experiment Class 12 Physics (India) It is now time to dive dee…
VideoFree7 minutes
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Health and medicine: Arteriosclerosis, arteriolosclerosis, and atherosclerosis
Learn the difference between Arteriosclerosis, Arteriolosclerosis, and Atherosclerosis! Rishi is a pediatric infectious disease physician a…
VideoFree9 minutes
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Class 11 Physics (India) - Hindi: Doppler effect formula for observed frequency (Hindi)
Let's derive the formula for how the perceived frequency of a sound changes when its source is moving toward you. Class 11 Physics (India) …
VideoFree9
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Class 11 Physics (India): Specific heat and latent heat of fusion and vaporization
Defining specific heat, heat of fusion, and heat of vaporization. How to calculate the amount of heat to change the temperature of water an…
VideoFree15 minutes
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Class 12 Physics (India): Nuclear stability and nuclear equations
Using the ratio of neutrons to protons to figure out of a nucleus will be stable or radioactive. Class 12 Physics (India) It is now time to…
VideoFree8 minutes
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Health and medicine: Baby circulation right after birth
Watch how the blood flows through the baby's circulation and compare it to what happens in the fetus. Rishi is a pediatric infectious disea…
VideoFree13 minutes
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Health and medicine: Naming the flu: H-something, N-something
We've all heard of H1N1 or H3N2; now you can understand what all of those names mean and find out why they are helpful in keeping track of …
VideoFree10 minutes
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Physics: Projectile motion (part 3)
An example of solving for the final velocity when you know the change in distance, time, initial velocity, and acceleration Physics Learn a…
VideoFree9 minutes
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Class 11 Physics (India) - Hindi: Pendulums (Hindi)
In this video Ram explains how a pendulum can be treated as a simple harmonic oscillator, and then explains what affects, as well as what d…
VideoFree19
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Biology: Neuronal synapses (chemical)
How one neuron can stimulate (or inhibit) another neuron at a chemical synapse. Biology Life is beautiful! From atoms to cells, from genes …
VideoFree16 minutes
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Organic chemistry: Formation of hydrates
How ketones and aldehydes react with water to form hydrates. Organic chemistry Sal and Jay cover topics covered in college organic chemistr…
VideoFree7 minutes
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Health and medicine: Risk factors for dementia
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree6 minutes
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Class 11 Physics (India): The equation of a wave
In this video David shows how to determine the equation of a wave, how that equation works, and what the equation represents. Class 11 Phys…
VideoFree15 minutes