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): Work as the transfer of energy
David explains "work" as the way forces transfer energy to and from objects Class 11 Physics (India) Let's learn, practice, and master topi…
VideoFree3 minutes
check_box_outline_blank
Class 11 Physics (India): Worked example: Derivative of ln(√x) using the chain rule
f(x)=ln(√x) is a composition of the functions ln(x) and √x, and therefore we can differentiate it using the chain rule. Class 11 Physics (I…
VideoFree7
check_box_outline_blank
Class 11 Physics (India): Choosing kinematic equations
How to set up problems with constant acceleration and choose the best kinematic equation to solve for the target unknown. Class 11 Physics …
VideoFree11 minutes
check_box_outline_blank
Electrical engineering: What is inside a DVD player? (5 of 5)
In this video we explore the laser assembly inside a DVD player. Electrical engineering Learn about electricity, circuit theory, and introd…
VideoFree3 minutes
check_box_outline_blank
Class 11 Physics (India) - Hindi: Vertical springs and energy conservation (Hindi)
In this video, Ram explains two different strategies to deal with vertical springs and compares them with those used for horizontal springs…
VideoFree19
check_box_outline_blank
Class 11 Physics (India) - Hindi: Angular velocity and speed (Hindi)
An intuition for the relationship between the formulas for angular velocity and speed, including a worked example of calculating angular ve…
VideoFree6
check_box_outline_blank
Class 11 Physics (India) - Hindi: Work example problems (Hindi)
Ram goes through some example problems on the concept of work. Class 11 Physics (India) - Hindi To help students who prefer to learn by wat…
VideoFree13
check_box_outline_blank
Class 11 Physics (India) - Hindi: Conservative forces (Hindi)
A conservative force exists when the work done by that force on an object is independent of the object's path. Instead, the work done by a …
VideoFree10
check_box_outline_blank
Class 11 Physics (India): Correction to force of friction keeping the block stationary
Correction to Force of Friction Keeping the Block Stationary Class 11 Physics (India) Let's learn, practice, and master topics of class 11 …
VideoFree1 minute
check_box_outline_blank
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
check_box_outline_blank
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
check_box_outline_blank
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
check_box_outline_blank
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
check_box_outline_blank
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
check_box_outline_blank
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