Khan Academy
Khan Academy: Detectable Civilizations in Our Galaxy 1: Life in the Universe
A system presented to figure out how many civilations with enough radioactivity to be detected within the Milky Way. [13:03]
Khan Academy
Khan Academy: Introduction to Work and Energy
A video lecture defining working and energy and by giving types of work we can do and what type of energy transferring to an object when doing that work. Understand how work and energy are related. [9:17]
Khan Academy
Khan Academy: Momentum : Introduction to Momentum
A video showing that momentum is the product of mass and velocity. Video contains a simple example problem to show how to calculate. [9:17]
Khan Academy
Khan Academy: Momentum: Ice Skater Throws a Ball
See how the conservation of momentum principles can be applied to a problem of an ice skater throwing a ball. This video lecture gives step by step example. [6:00]
Khan Academy
Khan Academy: Impacts and Linear Momentum: 2 Dimensional Momentum Problem
Solve a collision of balls in two dimensions problem using the conservations of momentum in this video. Video gives a step-by-step explanation of how to solve the problem to figure out what direction and velocity the balls travel after...
Khan Academy
Khan Academy: Momentum: 2 Dimensional Momentum Problem Part 2
Solve a collision of balls in two dimensions using the conservations of momentum in this video. Video discusses how specifically to use trigonometry to solve the direction and velocity of the balls after the collision. [9:32]
Khan Academy
Khan Academy: Moments, Torque, and Angular Momentum: Introduction to Torque
Learn that a torque is applied when a force causes an object to rotate around an axis in this video. Video overviews net torque and how to determine if torque is positive or negative. [9:24]
Khan Academy
Khan Academy: Moments, Torque, and Angular Momentum: Moments
Solve problems by using the Law of Moments in this video. Understand that moments is essentially the same concept as torque as explained in this video. [14:13]
Khan Academy
Khan Academy: Moments, Torque, and Angular Momentum: Moments Part 2
Solve problems by using the Law of Moments in this video. Understand that moments is essentially the same concept as torque as explained in this video. [13:49]
Khan Academy
Khan Academy: Moments, Torque, and Angular Momentum: Angular Momentum
A video exploring angular momentum which is how much movement an object has when it's rotating in a circle. Look at how the equation for angular momentum is derived. [11:18]
Khan Academy
Khan Academy: Constant Angular Momentum When No Net Torque
A video exploring angular momentum which is how much movement an object has when it's rotating in a circle. Look at how the equation for angular momentum is derived when there is no net torque. [5:55]
Khan Academy
Khan Academy: Art History: Nicola and Giovanni Pisano
Video on the thirteenth-century sculptors Nicola and Giovanni Pisano, with biographical and historical information. [13:19]
Khan Academy
Khan Academy: Art History: Parthenon
Video discussing the history of the Parthenon, Athens, 447-432 BC. [10:46] Full episode can be viewed with PBS link. Includes links to additional information and images.
Khan Academy
Khan Academy: Art History: Reformation and Counter Reformation
An overview of the religious ideals of the Reformation and the response of the Catholic Church to the changes sought by the leaders of the Reformation.
Khan Academy
Khan Academy: Art History: Victorious Athlete: The Vaison Daidoumenos
Video discussing a Roman copy of a Greek sculpture of a youth, c. AD 69-96. The original statue, Diadoumenos, by Polykleitos, c. 430 BC, was melted down for its bronze. Includes links to additional information and images. [9:03]
Khan Academy
Khan Academy: Art History: Polykleitos, Doryphoros
Article and video discussing the history and features of the Classical Greek sculpture Doryphoros by Polykleitos. [5:08]
Khan Academy
Khan Academy: Communism
A discussion of capitalism, socialism, communism, and the philosophies of Karl Marx and Vladimir Lenin. [15:04]
Khan Academy
Khan Academy: Intro to Vectors & Scalars
Video explores the difference between vectors and scalars while discussing distance, displacement, speed and velocity. [8:38]
Khan Academy
Khan Academy: Calculating Average Velocity or Speed
Video provides examples of how to calculate speed and velocity. [11:45]
Khan Academy
Khan Academy: Solving for Time
Video features a simple example of solving for time given distance and rate. [9:34]
Khan Academy
Khan Academy: Position vs. Time Graphs
This video teaches the viewer how to read a position vs. time graph. It explains how to use the graph to determine the following quantities: displacement, distance, average velocity, average speed, instantaneous velocity, and...
Khan Academy
Khan Academy: Airbus A380 Take Off Time
Video relates how to figure out how long it would take an Airbus A380 aircraft to take off given a constant acceleration. [8:07]
Khan Academy
Khan Academy: Airbus A380 Take Off Distance
Video tutorial explores how long a runway an A380 needs if the take off time is known. [5:29]
Khan Academy
Khan Academy: Acceleration vs. Time Graphs
Video tutorial explains how to read an acceleration vs. time graph and shows how the area under the curve gives the change in velocity, while providing a few examples. [14:37]