Hewitt-Drew-it! 27. Freddy-Frog Momentum Problem

Paul explains two ways that Freddy the Frog slows a horizontally-moving skateboard by vertically falling on it.

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Eureka! Episode 28 - Heat as Energy

Heat is produced whenever there is movement and friction between two objects. Since movement is a form of energy, it follows that heat must also be a form of energy.

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Eureka! Episode 13 - Mechanical Advantage and Friction

Professors A and B compare the mechanical advantage of an inclined plane with that of a lever.

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MIT 8.01 Classical Mechanics Lecture 8

MIT Physics Course

Professor Walter Lewin

8.01 Physics  I: Classical Mechanics, Fall 1999

Friction (at the end: an old movie showing a flee pulling a large frictionless object!)

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