Instructional Video
Khan Academy

Khan Academy: Choosing Kinematic Equations

9th - 10th
Kinematic equations help solve for an unknown in a problem when an object has either a constant velocity or constant acceleration. This video will help you choose which kinematic equations you should use, given the type of problem you're...
Instructional Video
Khan Academy

Khan Academy: Introduction to Reference Frames

9th - 10th
How the choice of reference frame is related to speed and velocity measurements. [6:54]
Instructional Video
Khan Academy

Khan Academy: Wave Interference

9th - 10th
David explains wave interference and solves a few examples to find the value of the total wave when two wave pulses overlap. [7:24]
Instructional Video
Khan Academy

Khan Academy: Quantum Wavefunction

9th - 10th
In this video David gives an introductory explanation of what the quantum wavefunction is, how to use it, and where it comes from. [10:11]
Instructional Video
Khan Academy

Khan Academy: Emission Spectrum of Hydrogen

9th - 10th
Using Balmer-Rydberg equation to solve for photon energy for n=3 to 2 transition. Solving for wavelength of a line in UV region of hydrogen emission spectrum. [10:50]
Instructional Video
Khan Academy

Khan Academy: De Broglie Wavelength

9th - 10th
In this video, David explains how Louis De Broglie got his Nobel Prize for the idea of matter having a wavelength. [11:20]
Instructional Video
Khan Academy

Khan Academy: The Caesar Cipher

9th - 10th
Brit explains the Caesar cipher, the first popular substitution cipher, and shows how it was broken with 'frequency analysis'.
Instructional Video
Khan Academy

Khan Academy: Perfect and Imperfect Competition

9th - 10th
The most common forms of competition you learn about in microeconomics are perfect competition, monopolies, oligopoly, monopsony, and monopolistic competition. In this video [9:59] we briefly describe the key features of each.
Instructional Video
Khan Academy

Khan Academy: Percentage Tax on Hamburgers

9th - 10th
This video [5:39] discusses what would happen if we have a percentage tax instead of a fixed dollar amount.
Instructional Video
Khan Academy

Khan Academy: Option Expiration and Price

9th - 10th
In this video [3:26], we explore how aspects of an option's expiration affect the option's price.
Instructional Video
Khan Academy

Khan Academy: Optional Calculus Proof to Show That Mr Has Twice Slope of Demand

9th - 10th
This video [4:55] explains how using some basic calculus to show that marginal revenue has twice the slope of the demand curve for a monopolist.
Instructional Video
Khan Academy

Khan Academy: Optimal Point on Budget Line

9th - 10th
This video [9:23] explains using indifference curves to think about the point on the budget line that maximizes total utility.
Instructional Video
Khan Academy

Khan Academy: Optimal Decision Making and Opportunity Costs

9th - 10th
A rational agent considers all costs, including explicit and implicit costs, when deciding whether or not to undertake an action. In this video [5:08], learn about how opportunity costs represent the cost of the next best alternative.
Instructional Video
Khan Academy

Khan Academy: Opportunity Cost and Comparative Advantage Using an Output Table

9th - 10th
In this video [9:55], we use the PPCs for two different countries that each produce two goods in order to create an output table based on the data in the graph. We then use the output table to determine the opportunity costs of producing...
Instructional Video
Khan Academy

Khan Academy: Pegging the Yuan

9th - 10th
How the Chinese Central Bank could peg the Yuan to the dollar by printing Yuan and buying dollars (building up a dollar reserve).
Instructional Video
Khan Academy

Khan Academy: P/e Conundrum

9th - 10th
This video [13:41] discusses P/E Conundrum, a situation where the price to earnings ratio seems to not fairly price an asset.
Instructional Video
Khan Academy

Khan Academy: Payday Loans

9th - 10th
Payday loans, which are sometimes called cash advances, are a form of unsecured short-term loans that are typically associated with very high interest rates. In this video [10:46] we explore an example of a payday loan and use that to...
Instructional Video
Khan Academy

Khan Academy: Parsing Gross Domestic Product

9th - 10th
In this video [11:58], we break down GDP into its components to better understand what's counted in GDP and what's not counted.
Instructional Video
Khan Academy

Khan Academy: Overview of Fractional Reserve Banking

9th - 10th
This video [8:28] focuses on the big picture of how money enters circulation and how lending can increase the money supply.
Instructional Video
Khan Academy

Khan Academy: It Was Just Mayhem

9th - 10th
This Khan Academy resource is a video interview of entrepreneurs Dave Gilboa and Neil Blumenthal who are the owners of Warby Parker.
Instructional Video
Khan Academy

Khan Academy: Toward a Smarter Grid

9th - 10th
Video also investigates how we are trying to provide electricity to a 21st-century with an electric grid that is a 20th-century system. [2:57]
Instructional Video
Khan Academy

Khan Academy: Severe Storms

9th - 10th
A video exploring how cloud formation can relate to a powerful storm development. Also, learn how severe storms are predicted. [3:38]
Instructional Video
Khan Academy

Khan Academy: Introduction to Channel Capacity

9th - 10th
Introduction to Channel Capacity & Message Space.
Instructional Video
Khan Academy

Khan Academy: Information Entropy

9th - 10th
Finally we arrive at our quantitative measure of entropy.