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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): Analyzing scalar multiplication

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Sal analyzes the magnitude and direction of vectors that are a result of scalar multiplication of a vector whose magnitude is given. Class …

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Class 11 Physics (India): Vector magnitude from initial & terminal points

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Example of finding the magnitude of a vector when what we're given about the vector is where it starts and where it ends. Class 11 Physics …

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Class 12 Physics (India): Capacitance

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Introduction to the capacitance of a two-plate capacitor. Class 12 Physics (India) It is now time to dive deeper into the world of physics …

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Class 11 Physics (India) - Hindi: Distance and displacement in one dimension (Hindi)

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Using a one-dimensional number line to visualize and calculate distance and displacement. Class 11 Physics (India) - Hindi To help students…

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Physics: More on entropy

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Distinguishing between microstates and macro states. How entropy S is defined for a system and not for a specific microstate. Physics Learn…

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Class 11 Physics (India) - Hindi: Relationship between angular velocity and speed (Hindi)

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How angular velocity relates to speed. Class 11 Physics (India) - Hindi To help students who prefer to learn by watching Hindi videos, we'v…

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Class 11 Physics (India): Formal definition of the derivative as a limit

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The derivative of function f at x=c is the limit of the slope of the secant line from x=c to x=c+h as h approaches 0. Symbolically, this is…

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Class 11 Physics (India): Scientific notation example: 0.0000000003457

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Can you imagine if you had to do calculations with very, very small numbers? How would you handle all those zeros to the right of the decim…

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Class 11 Physics (India): Introduction to centripetal force

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Introduction to centripetal force, which accelerates an object toward the center of the circular path. Class 11 Physics (India) Let's learn…

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Class 11 Physics (India): Masses on incline system problem

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In this video David explains how to find the acceleration and tension for a system of masses involving an incline. Class 11 Physics (India)…

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Class 10 Physics (India): Refraction through glass slab

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Let's explore refraction of light through any parallel sided medium. Will also see why things appear to shift (lateral shift) when looked t…

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Class 11 Physics (India): Why use I beams in construction?

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When constructing buildings, why do we always use beams which have a cross-sectional shape of I? Let's explore this intuitively in this vid…

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Class 11 Physics (India): Rotational version of Newton's second law

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David explains moment of inertia and the rotational version of Newton's second law and shows how to solve an example problem. Class 11 Phys…

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Class 11 Physics (India) - Hindi: Identifying centripetal force vectors for cars and satellites (Hindi)

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Identifying centripetal force vectors for cars and satellites Class 11 Physics (India) - Hindi To help students who prefer to learn by watc…

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Class 11 Physics (India) - Hindi: Worked example: motion problems (with definite integrals) (Hindi)

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What can you say about the velocity and position of a particle given its acceleration? Class 11 Physics (India) - Hindi To help students wh…