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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Electrical engineering: Mesh current method (step 4)
We complete the solution of a circuit using the mesh current method. Fourth step (solve) out of four. Electrical engineering Learn about el…
VideoFree12 minutes
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Organic chemistry: Alcohol nomenclature
Rules for naming alcohols. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of b…
VideoFree12 minutes
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Health and medicine: What is cystic fibrosis?
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree9 minutes
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Electrical engineering: Create the motor mounts
Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also have sections that let you get down a…
VideoFree6 minutes
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Class 10 Physics (India): Convex mirror & applications
When curved mirrors have a reflecting surface on the outside, they are called convex mirrors. (vex stands for bulging out). Let's learn wha…
VideoFree13
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Class 11 Physics (India) - Hindi: Gravitation part 2 (Hindi)
A little bit more on gravity Class 11 Physics (India) - Hindi To help students who prefer to learn by watching Hindi videos, we've created …
VideoFree8
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Class 12 Physics (India): Zener diode voltage regulator
A Zener diode can limit the voltage across it, making it a voltage regulator! In this video, let's explore how a Zener diode can be used to…
VideoFree10
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Health and medicine: Arterial elastance (Ea) and preload
Understand how Ea is affected by changes in preload, and in turn, how the PV loop can shift. Rishi is a pediatric infectious disease physic…
VideoFree8 minutes
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Class 11 Physics (India): Breaking down forces for free body diagrams
Sal explains how to draw free body diagrams when forces are applied at an angle. How to find horizontal and vertical components of an angle…
VideoFree9
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Class 11 Physics (India) - Hindi: Impact velocity from given height (Hindi)
Determining how fast something will be traveling upon impact when it is released from a given height. Class 11 Physics (India) - Hindi To h…
VideoFree6
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Health and medicine: Preload stretches out the heart cells
Find out why stretching a heart cell in diastole affects how forcefully it contracts in systole. Rishi is a pediatric infectious disease ph…
VideoFree13 minutes
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Health and medicine: Endocrine system and influence on behavior - Part 2
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree7 minutes
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Health and medicine: Hemorrhagic strokes
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree7 minutes
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Class 11 Physics (India): Thermal expansion in liquids
How do we quantify expansion coefficient in liquids? Unlike solids, liquids don't have a definite shape or size, so we need to be careful w…
VideoFree8
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Class 12 Physics (India): Half-life and carbon dating
Carbon dating is a real-life example of a first-order reaction. This video explains half-life in the context of radioactive decay. Class 12…
VideoFree13 minutes