Figuring out the acceleration of ice down a plane made of ice. Created by Sal Khan.
Identifying forces or force components acting as the centripetal force for a ball on a string moving in a horizontal circle.
Identifying forces or force components acting as the centripetal force for a car driving in a horizontal circle, a car driving in a vertical circle, and a satellite in orbit.
A worked example finding all force vectors acting on a pendulum moving in a horizontal circle.
Ideologies of political parties in the United States. General views of liberals (generally associated with the Democratic Party) and conservatives (generally associated with the Republican Party).
How conservatives, liberals and libertarians think about government intervention for social issues.
The power vacuum left by Caesar begins a scramble for power between Octavian and Marc Antony.
Impact of changes to trophic pyramids.
Example question exploring how mass impacts orbital speed.
How the evolution from newspapers to radio to television to the Internet and social media have affected political discourse.
Using an amino acid translation table to understand the impact of point and frameshift mutations.
Part 3 of the series on the Crusades. An overview of the human, territorial, commercial and political impact of the Crusades.
Determining how fast something will be traveling upon impact when it is released from a given height. Created by Sal Khan.
Overview of what Impeachment is and how it works in the United States.
What is implied volatility?
Discussion of the properties of water that make it essential to life as we know it: polarity, "universal" solvent, high heat capacity, high heat of vaporization, cohesion, adhesion and lower density when frozen.
This art history video discussion looks at Marcel Duchamp's "In Advance of a Broken Arm", 1964 (fourth version, after lost original of November 1915) (MoMA).
An overview of the Inca Empire, or Tawantinsuyu, founded by Pachacuti from the Kingdom of Cusco. The Mit'a system and eventual conquest by Pizarro.
Figuring out the components of the force due to gravity that are parallel and perpendicular to the surface of an inclined plane. Created by Sal Khan.
In this video we explore an alternative method of calculating GDP: the income approach. The intuition behind the income approach is pretty straightforward because every time you spend money, that spending is someone else's income. Learn more about the income approach and its categories: wages, interest, rent, and profit. Created by Sal Khan.