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): Thermal conductivity of metal and wood
Why metal at room temperature feels cooler than wood at room temperature. Class 11 Physics (India) Let's learn, practice, and master topics…
VideoFree7 minutes
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Class 11 Physics (India): More on internal energy
Getting more intuition of internal energy, heat, and work. Examples of using the first law to calculate work. Class 11 Physics (India) Let'…
VideoFree14 minutes
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Class 11 Physics (India) - Hindi: Solved example: Stress and strain (Hindi)
In this video, we will solve a numerical on calculating strain. Class 11 Physics (India) - Hindi To help students who prefer to learn by wa…
VideoFree7
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Electrical engineering: Click n' stick base & batteries
In this video we show you how to connect Spider's motors to his tap light base. Electrical engineering Learn about electricity, circuit the…
VideoFree3 minutes
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Class 11 Physics (India) - Hindi: Pressure at a depth in a fluid (Hindi)
Ram derives the formula to determine the pressure at a specific depth in a fluid. Class 11 Physics (India) - Hindi To help students who pre…
VideoFree10
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Class 11 Physics (India) - Hindi: Archimedes principle and buoyant force (Hindi)
Introduction to Archimedes' principle and buoyant force. Class 11 Physics (India) - Hindi To help students who prefer to learn by watching …
VideoFree9
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Class 11 Physics (India): Production of sound
Sound is vibrating air. But how does the air start vibrating? Class 11 Physics (India) Let's learn, practice, and master topics of class 11…
VideoFree4 minutes
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Class 12 Physics (India): Exponential decay and semi-log plots
Using exponential decay equation to solve for relationship between k and half-life. Using semi-log plot to get graph of a straight line wit…
VideoFree10 minutes
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Electrical engineering: Motor controller connections
Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also have sections that let you get down a…
VideoFree2 minutes
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Class 10 Physics (India): Convex & concave mirror ray diagrams
Let's explore the ray tracing technique to figure out the properties of images when things are kept in front of a concave or a convex mirro…
VideoFree13
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Class 11 Physics (India): Change in period and frequency from change in angular velocity: Worked examples
A worked example finding the change in the period from the change in angular velocity, and an example finding the change in frequency from …
VideoFree7
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Class 11 Physics (India): Connecting period and frequency to angular velocity
Definition of period and frequency for an object moving in a circle. Connecting period and frequency to the magnitude of the angular veloci…
VideoFree7
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Class 11 Physics (India) - Hindi: Momentum Ice skater throws a ball (Hindi)
A simple conservation of momentum problem involving an ice skater and a ball. Class 11 Physics (India) - Hindi To help students who prefer …
VideoFree6
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Class 11 Physics (India) - Hindi: Finding torque for angled forces (Hindi)
Ram explains how to determine the torque exerted by a non-perpendicular force. Class 11 Physics (India) - Hindi To help students who prefer…
VideoFree12
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Class 12 Physics (India): Emf induced in rod traveling through magnetic field
Emf induced in rod traveling through magnetic field Class 12 Physics (India) It is now time to dive deeper into the world of physics with t…
VideoFree8 minutes