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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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Physics: Parabolic mirrors and real images

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Parabolic Mirrors and Real Images Physics Learn about the basic principles that govern the physical world around us. Solid understanding of…

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Class 11 Physics (India): Thermodynamics part 2: Ideal gas law

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To begin, Sal solves a constant temperature problem using PV=PV. Then he relates temperature to kinetic energy of a gas. In the second half…

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Physics: Electrolyte (strong acid test)

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Experimenting with a strong acid as electrolyte and observing the change in deflection compared to weak acid (vinegar) Physics Learn about …

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Physics: Neutralize a compass

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How to neutralize a compass using two needles. How could this help us later? Why does this work? Physics Learn about the basic principles t…

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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 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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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) - Hindi: Change in centripetal acceleration from change in linear velocity and radius: Examples (Hindi)

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Centripetal acceleration from linear and angular velocity. Class 11 Physics (India) - Hindi To help students who prefer to learn by watchin…

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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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Class 11 Physics (India) - Hindi: Total displacement for projectile (Hindi)

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Calculating the total final velocity for a projectile landing at a different altitude. Class 11 Physics (India) - Hindi To help students wh…

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Class 11 Physics (India): Impact velocity from given height

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Determining how fast something will be traveling upon impact when it is released from a given height Class 11 Physics (India) Let's learn, …

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Physics: Work and energy (part 2)

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More on work. Introduction to Kinetic and Potential Energies. Physics Learn about the basic principles that govern the physical world aroun…