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 11 Physics (India): Adding & subtracting vectors
Sal shows how to add vectors by adding their components, then explains the intuition behind adding vectors using a graph. Class 11 Physics …
VideoFree8
check_box_outline_blank
Chemistry: Titration of a weak acid with a strong base
Calculating the pH for titration of acetic acid with strong base NaOH before adding any base and at half-equivalence point. Chemistry Did y…
VideoFree14 minutes
check_box_outline_blank
Class 11 Physics (India): Anomalous expansion of water
Why does ice float on water? You may already know that ice is less dense than water, but why? Usually, solids are denser than liquids. In t…
VideoFree10
check_box_outline_blank
Physics: Lorentz transformation derivation part 3
Finishing our Lorentz transformation derivation for t'. Physics Learn about the basic principles that govern the physical world around us. …
VideoFree11 minutes
check_box_outline_blank
Physics: How much electrolyte does a single cell need?
Observation: when we pull our cell out of the electrolyte it still causes a deflection, which increases when pressure is applied. How could…
VideoFree1 minute
check_box_outline_blank
Class 11 Physics (India): Graphically adding & subtracting vectors
Build intuition behind adding and subtracting vectors visually and the "head-to-tail" method. Class 11 Physics (India) Let's learn, practic…
VideoFree6
check_box_outline_blank
Class 11 Physics (India): Charles's law
Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (NCERT) starting with kinematics and then moving to d…
VideoFree8
check_box_outline_blank
Class 12 Physics (India): Simplifying resistor networks
A systematic approach to simplify a complicated resistor network by looking for series and parallel resistor patterns. Class 12 Physics (In…
VideoFree8 minutes
check_box_outline_blank
Class 11 Physics (India): Constructive and Destructive interference
In this video David explains what constructive and destructive interference means as well as how path length differences and pi shifts affe…
VideoFree14 minutes
check_box_outline_blank
Physics: Calculating neutral velocity
Let's now do the math to calculate the equal speed at which both A and B could be traveling away from a "neutral" observer. Physics Learn a…
VideoFree7 minutes
check_box_outline_blank
Physics: Question 5: 2015 AP Physics 1 free response
Fundamental frequencies (first harmonics) of strings. Physics Learn about the basic principles that govern the physical world around us. So…
VideoFree12 minutes
check_box_outline_blank
Physics: AP Physics 1 review of 2D motion and vectors
In this video David quickly explains each 2D motion concept and does a quick example problem for each concept. Keep an eye on the scroll to…
VideoFree13 minutes
check_box_outline_blank
Class 10 Physics (India): Laws of reflection
In this video, we will explore what diffused (scattered) & specular (regular) reflections are, and also learn the rules governing the refle…
VideoFree10
check_box_outline_blank
Class 11 Physics (India) - Hindi: Balanced and unbalanced forces (Hindi)
A primer on identifying balanced and unbalanced forces. Class 11 Physics (India) - Hindi To help students who prefer to learn by watching H…
VideoFree8
check_box_outline_blank
Class 12 Physics (India): Intro to semiconductors
Why are we obsessed with semiconductors? All our computers and digital devices are made from semiconductors. But what is so special about t…
VideoFree8