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
Organic chemistry: E2 mechanism: regioselectivity
Regioselectivity of E2 elimination reactions. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic…
VideoFree6 minutes
check_box_outline_blank
Class 11 Physics (India): Worked example: matching an input to a function's output (equation)
Sal finds the input value for which f(t)=13, given that f(t)=-2t+5. Class 11 Physics (India) Let's learn, practice, and master topics of cl…
VideoFree2
check_box_outline_blank
Health and medicine: Contractility, Ea, and preload effects on PV boxes
See how contractility, Ea (arterial elastance), and preload each have an effect on PV Boxes. Rishi is a pediatric infectious disease physic…
VideoFree13 minutes
check_box_outline_blank
Class 11 Physics (India): Analyzing scalar multiplication
Sal analyzes the magnitude and direction of vectors that are a result of scalar multiplication of a vector whose magnitude is given. Class …
VideoFree5
check_box_outline_blank
Chemistry: Solubility and the pH of the solution
Using le Chatelier's principle to see what happens to the solubility of calcium fluoride when pH is decreased. Also looks at effect of pH o…
VideoFree5 minutes
check_box_outline_blank
Health and medicine: Peripheral chemoreceptors
Peripheral chemoreceptors are extensions of the peripheral nervous system that respond to changes in blood molecule concentrations (such as…
VideoFree11 minutes
check_box_outline_blank
Organic chemistry: Intro to organic mechanisms
Identifying electrophiles and nucleophiles. Showing movement of electrons using curved arrows. Organic chemistry Sal and Jay cover topics c…
VideoFree12 minutes
check_box_outline_blank
Class 11 Physics (India): Particular solutions to differential equations: rational function
Sal finds f(-1) given that f'(x)=24/x³ and f(2)=12. Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (…
VideoFree4
check_box_outline_blank
Health and medicine: Three components of emotion and the universal emotions
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree8 minutes
check_box_outline_blank
Health and medicine: Intelligence
Learn about different definitions of intelligence and the nature/nurture debate in the context of intelligence. Health and medicine The med…
VideoFree8 minutes
check_box_outline_blank
Class 11 Physics (India): Introduction to gravity
Basics of gravity and the Law of Universal Gravitation Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physic…
VideoFree16 minutes
check_box_outline_blank
Class 12 Physics (India): Absorption and emission
Using shell model diagram to relate absorption to emission. Derives relationship between emitted photon and energy levels, the Balmer-Rydbe…
VideoFree11 minutes
check_box_outline_blank
Health and medicine: Pulmonary hypertension treatment
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree7 minutes
check_box_outline_blank
Class 11 Physics (India) - Hindi: Area expansion coefficient (Hindi)
Commonly on heating things expand and their area changes. Let's find out how to quantify this. Class 11 Physics (India) - Hindi To help stu…
VideoFree9
check_box_outline_blank
Electrical engineering: Attach the LED eyes
Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also have sections that let you get down a…
VideoFree9 minutes