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 …
check_box_outline_blank
Class 12 Physics (India): Transistor as a switch
Let's see how we can exploit the cut off and saturation behaviour of a transistor and build an incredibly efficient switch. Class 12 Physic…
VideoFree7
check_box_outline_blank
Class 11 Physics (India): Unbalanced forces and motion
Thinking about what is true about how unbalanced forces relate to motion and acceleration Class 11 Physics (India) Let's learn, practice, a…
VideoFree7 minutes
check_box_outline_blank
Class 11 Physics (India) - Hindi: Normal force in an elevator (Hindi)
How the normal force changes when an elevator accelerates. Class 11 Physics (India) - Hindi To help students who prefer to learn by watchin…
VideoFree9
check_box_outline_blank
Health and medicine: Treating type II diabetes - Pharmacology
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree9 minutes
check_box_outline_blank
Physics: AP Physics 1 review of Energy and Work
In this video David explains the concepts in Work and Energy and does an example problem for each concept. Link for document: https://www.d…
VideoFree12 minutes
check_box_outline_blank
Class 11 Physics (India) - Hindi: Intuition on static and kinetic friction comparisons (Hindi)
Why static friction is harder to overcome than kinetic friction. Class 11 Physics (India) - Hindi To help students who prefer to learn by w…
VideoFree7
check_box_outline_blank
Physics: Electromagnetic field (above vs. below)
Testing the direction of force when the current carrying wire is above vs. below a compass. What does this tell us? Physics Learn about the…
VideoFree
check_box_outline_blank
Electrical engineering: Battery and motor mounts for Spider
In this video we show you how to connect Spider's motors and batteries Electrical engineering Learn about electricity, circuit theory, and …
VideoFree6 minutes
check_box_outline_blank
Class 11 Physics (India): Bouncing fruit collision example
David shows how to use conservation of momentum for a situation where two objects bounce off of each other. Class 11 Physics (India) Let's …
VideoFree9 minutes
check_box_outline_blank
Class 10 Physics (India): Presbyopia
Let's explore what are the symptoms and causes of Presbyopia. We will also see how bifocals correct them. Created by Mahesh Shenoy Class 10…
VideoFree6
check_box_outline_blank
Class 11 Physics (India) - Hindi: Linear expansion (Hindi)
In this video Ram quantifies by how much will a wire expand when heated. Class 11 Physics (India) - Hindi To help students who prefer to le…
VideoFree14
check_box_outline_blank
Class 12 Physics (India): Minority charge carriers in extrinsic semiconductors
When we add impurities to semiconductors, what happens to minority charge carriers? Do they remain the same? In this video, we will explore…
VideoFree12
check_box_outline_blank
Class 11 Physics (India) - Hindi: Rolling without slipping (Hindi)
Ram explains how to solve problems where an object rolls without slipping. Class 11 Physics (India) - Hindi To help students who prefer to …
VideoFree18
check_box_outline_blank
Class 10 Physics (India): Magnification formula for mirrors
Let's explore how to calculate image height and it's nature (real or virtual) using magnification formula Created by Mahesh Shenoy Class 10…
VideoFree10
check_box_outline_blank
Health and medicine: Pain and temperature
Explore our senses of pain & temperature. By Ron. Health and medicine The medical world can be a confusing place. Patients, their families,…
VideoFree9 minutes