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): Wave interference
David explains wave interference and solves a few examples to find the value of the total wave when two wave pulses overlap. Class 11 Physi…
VideoFree7 minutes
check_box_outline_blank
Class 11 Physics (India) - Hindi: Tension in an accelerating system and pie in the face(Hindi)
The second part of the complicated problem. We figure out the tension in the wire connecting the two masses. Then we figure out how much we…
VideoFree15
check_box_outline_blank
Class 11 Physics (India) - Hindi: Venturi effect and Pitot tubes (Hindi)
Ram explains the Venturi effect and the role and function of Pitot tubes. Class 11 Physics (India) - Hindi To help students who prefer to l…
VideoFree16
check_box_outline_blank
Physics: Are 2 magnets stronger than 1?
Will the power of two magnets stuck together increase the overall force? Why? Physics Learn about the basic principles that govern the phys…
VideoFree1 minute
check_box_outline_blank
Class 11 Physics (India): Deriving formula for centripetal acceleration from angular velocity
Deriving formula for centripetal acceleration in terms of angular velocity. using linear speed formula. Class 11 Physics (India) Let's lear…
VideoFree6
check_box_outline_blank
Class 12 Physics (India): Solved example: Curved surface refraction
Let's solve a numerical on a curved surface refraction. Class 12 Physics (India) It is now time to dive deeper into the world of physics wi…
VideoFree12
check_box_outline_blank
Class 11 Physics (India): Shear modulus
Let's explore a new modulus of elasticity called shear modulus (rigidity modulus). This will also explain why our bones are strong and yet …
VideoFree11
check_box_outline_blank
Class 11 Physics (India) - Hindi: Harmonic motion part 3 (no calculus) (Hindi)
Figuring out the period, frequency, and amplitude of the harmonic motion of a mass attached to a spring. Class 11 Physics (India) - Hindi T…
VideoFree12
check_box_outline_blank
Class 12 Physics (India): Photoelectric effect
Explaining the photoelectric effect using wave-particle duality, the work function of a metal, and how to calculate the velocity of a photo…
VideoFree10 minutes
check_box_outline_blank
Class 11 Physics (India): Acceleration due to gravity at the space station
What is the acceleration due to gravity at the space station Class 11 Physics (India) Let's learn, practice, and master topics of class 11 …
VideoFree10 minutes
check_box_outline_blank
Physics: More on Newton's first law of motion
Newton's First Law (Galileo's Law of Inertia). Physics Learn about the basic principles that govern the physical world around us. Solid und…
VideoFree10 minutes
check_box_outline_blank
Class 11 Physics (India) - Hindi: More on Newton's second law (Hindi)
In this video Ram explains how to use Newton's second law when dealing with multiple forces, forces in two dimensions, and diagonal forces.…
VideoFree19
check_box_outline_blank
Physics: Compass: Which way is north?
how would you know which way is north if you had no reference? Can the direction of stroke alone tell you this? Are you sure? Physics Learn…
VideoFree1 minute
check_box_outline_blank
Class 11 Physics (India): Partial pressure example
Figuring out the partial pressures of various gases in a container given the mass percent composition. Class 11 Physics (India) Let's learn…
VideoFree15 minutes
check_box_outline_blank
Class 11 Physics (India): Angular motion variables
David explains the meaning of angular displacement, angular velocity, and angular acceleration. Class 11 Physics (India) Let's learn, pract…
VideoFree13 minutes