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): Would a brick or feather fall faster?
What would fall faster on the moon, a brick or a feather? Class 11 Physics (India) Let's learn, practice, and master topics of class 11 phy…
VideoFree11 minutes
check_box_outline_blank
Class 10 Physics (India): Scattering of light & Tyndall effect
Let's explore the scattering of light with the help of an experiment. When we shine a laser through a glass of water with few drops of milk…
VideoFree10
check_box_outline_blank
Class 11 Physics (India) - Hindi: Calculating average velocity or speed (Hindi)
Although speed and velocity are often words used interchangeably, in physics, they are distinct concepts. Speed is calculated by dividing t…
VideoFree9
check_box_outline_blank
Class 11 Physics (India): Adding vectors in magnitude & direction form (1 of 2)
Watch Sal add two vectors given in magnitude and direction form by breaking them down into components first. Class 11 Physics (India) Let's…
VideoFree9
check_box_outline_blank
Class 12 Physics (India): Introduction to magnetism
An introduction to magnetism Class 12 Physics (India) It is now time to dive deeper into the world of physics with topics from class 12 (NC…
VideoFree11 minutes
check_box_outline_blank
Organic chemistry: E1 mechanism: kinetics and substrate
Mechanism of an E1 elimination reaction. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic unde…
VideoFree13 minutes
check_box_outline_blank
Class 11 Physics (India): Race cars with constant speed around curve
When acceleration could involve a change in direction and not speed. Class 11 Physics (India) Let's learn, practice, and master topics of c…
VideoFree5 minutes
check_box_outline_blank
Class 11 Physics (India) - Hindi: Standing waves in open tubes (Hindi)
Find out why a flute makes such specific notes. Class 11 Physics (India) - Hindi To help students who prefer to learn by watching Hindi vid…
VideoFree12
check_box_outline_blank
Chemistry: Atomic number, mass number, and isotopes
How to use the atomic number and the mass number to represent different isotopes Chemistry Did you know that everything is made out of chem…
VideoFree10 minutes
check_box_outline_blank
Organic chemistry: Nitration
Nitration of benzene to form nitrobenzene. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic un…
VideoFree8 minutes
check_box_outline_blank
Organic chemistry: Nucleophilicity (nucleophile strength)
Nucleophilicity (Nucleophile Strength) Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic unders…
VideoFree14 minutes
check_box_outline_blank
Chemistry: Ideal gas equation example 1
Figuring out the number of moles of gas we have using the ideal gas equation: PV=nRT. Chemistry Did you know that everything is made out of…
VideoFree10 minutes
check_box_outline_blank
Class 11 Physics (India) - Hindi: Production of sound (Hindi)
Sound is vibrating air. But how does the air start vibrating? Class 11 Physics (India) - Hindi To help students who prefer to learn by watc…
VideoFree4
check_box_outline_blank
Class 11 Physics (India): Ball hits rod angular momentum example
David explains how a mass can have angular momentum even if it is traveling along a straight line. Then David shows how to solve the conser…
VideoFree15 minutes
check_box_outline_blank
Organic chemistry: Ortho-para directors II
Strong activators. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of basic hig…
VideoFree9 minutes