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friction

Science of Speed: Friction and Heat
Image: iStockphoto.com/rcyoung

Science of Speed: Friction and Heat

Rub your hands together for an easy demonstration of friction — the motion of objects sliding against each other. You'll also feel an unavoidable consequence of friction: heat.

Go behind the wheel with NASCAR to discover why friction is both the best friend and worst enemy of race car drivers. Then investigate how friction affects our work and play.

National Science Foundation
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Mechanical Advantage & Friction

Mechanical Advantage & Friction

Eureka cartoons are fun to watch, even when they're about things like simple machines and friction. In this one, see why the lever is far more efficient than the inclined plane. More...

Video
TV Ontario
Science Friction (Curling)

Science Friction (Curling)

Olympian and life-long curler John Shuster explains how "sweeping" reduces friction between the stone and ice. More...

Video
NSF & NBC Learn
The Eggsperiment: Friction, Forces, and Gravity

The Eggsperiment: Friction, Forces, and Gravity

Watch this standup comedy trio demonstrate how the forces of friction and gravity work with this magic trick meets science experiment. More...

Video
London Science Museum
Effect of Friction on Objects in Motion

Effect of Friction on Objects in Motion

Investigate kinetic friction (aka sliding friction) by building a rubber-band launch station and testing surfaces with different textures. More...

Activity
Science Buddies
Fact or Friction? Snowboard Science

Fact or Friction? Snowboard Science

As snowboarders maneuver, they have to deal with friction — the resistance caused when one object touches another. Find out how important static and fluid friction are to the sport. More...

Interactive
PBS
Friction Interactive

Friction Interactive

Rub two objects together and they heat up. See what happens when one of them reaches the melting point. More...

Interactive
PhET
Friction Quiz

Friction Quiz

What makes a puck slow down as it glides on an icy surface? If you can answer that question and nine more, you can ace this practice quiz. More...

Interactive
BBC
Newton in Action: Background Friction

Newton in Action: Background Friction

From the air that slows sky divers to the water that slows boats, watch friction in action. Then see how a fish's shape reduces friction. More...

Images
Stephen Heppell
Skiing and Friction

Skiing and Friction

Skiers are always trying to go faster with less effort. The trick is to minimize friction. Investigate how ski wax affects the sliding friction of skis. More...

Activity
Science Buddies
Static & Kinetic Friction

Static & Kinetic Friction

Static and kinetic friction are important to understanding — and avoiding — car accidents. Get the details. More...

Article
University of Alaska, Fairbanks

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