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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Health and medicine: Blood types
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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Class 11 Physics (India): Harmonic motion part 2 (calculus)
We test whether Acos(wt) can describe the motion of the mass on a spring by substituting into the differential equation F=-kx Class 11 Phys…
VideoFree10 minutes
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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): Magnetic field created by a current carrying wire
See how a wire carrying a current creates a magnetic field. Class 12 Physics (India) It is now time to dive deeper into the world of physic…
VideoFree10 minutes
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Health and medicine: Divided attention, selective attention, inattentional blindness, & change blindness
Learn about divided attention, selective attention, inattentional blindness, & change blindness. By Carole Yue. Health and medicine The med…
VideoFree7 minutes
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Electrical engineering: Complex exponential magnitude
A closer look at the complex exponential term in Euler's Formula. We see that it represents a complex number, a distance of 1 from the orig…
VideoFree6 minutes
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Electrical engineering: Design review (calibration)
Final step in the coin detector challenge Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We …
VideoFree4 minutes
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Class 11 Physics (India): Conservation of angular momentum
How angular momentum is conserved within a system when there is no external torque. Class 11 Physics (India) Let's learn, practice, and mas…
VideoFree7
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Class 11 Physics (India) - Hindi: Projectile motion graphs (Hindi)
Visualizing position, velocity, and acceleration in two-dimensions for projectile motion. Class 11 Physics (India) - Hindi To help students…
VideoFree14
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Class 11 Physics (India): Direction of vectors from components: 3rd & 4th quadrants
Sal finds the direction angle of a vector in the third quadrant and a vector in the fourth quadrant. Class 11 Physics (India) Let's learn, …
VideoFree7
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Class 11 Physics (India): Space station speed in orbit
Speed necessary for the space station to stay in orbit Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physic…
VideoFree7 minutes
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Class 11 Physics (India): Doppler effect introduction
Learn about the Doppler effect and how it explains the change in frequency of a wave when its source and an observer are moving. Class 11 P…
VideoFree11 minutes
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Electrical engineering: Fun with Spider Bot
Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also have sections that let you get down a…
VideoFree
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Class 10 Physics (India): Refraction in water
Refraction in Water Class 10 Physics (India) Let's explore the mysteries of light and electricity. From how light reflects to correcting de…
VideoFree4 minutes
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Health and medicine: Pulmonary hypertension symptoms and causes
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree7 minutes