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The Science of Speed: Sound

4 minutes 46 seconds

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Race cars are loud. They don't have mufflers because mufflers will reduce the speed of the car. Spectators need to make sure they have adequate ear protection if they attend a NASCAR race. Part of "The Science of Speed" series.

Media Details

Runtime: 4 minutes 46 seconds

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Pit crew station filled with tires at a racetrack. Caption: Friction is necessary for breaks and tires to work.
The Science of Speed
Episode 1
5 minutes 27 seconds
Grade Level: 10 - 12
Race car on a track. Caption: Front downforce gives you front grip,
The Science of Speed
Episode 2
5 minutes 2 seconds
Grade Level: 10 - 12
A race car about to go into a turn. Caption: That means that car won't turn.
The Science of Speed
Episode 3
5 minutes 16 seconds
Grade Level: 10 - 12
Illustration of two cars bumper to bumper. Caption: is pushing the air out of the way for both cars.
The Science of Speed
Episode 4
5 minutes 29 seconds
Grade Level: 10 - 12
A simulation of a car crash on a wall. Caption: Gregory Earle, When a car hits it, the wall deforms and moves.
The Science of Speed
Episode 5
4 minutes 29 seconds
Grade Level: 10 - 12
Illustration of a car frame. Caption: The chassis is made from steel tubing,
The Science of Speed
Episode 6
5 minutes 30 seconds
Grade Level: 10 - 12
Three men, one wearing a vest being lit on fire. Caption: it forms a char a carbon shell around the fiber.
The Science of Speed
Episode 7
4 minutes 38 seconds
Grade Level: 10 - 12
That affects how much grip each tire has.
The Science of Speed
Episode 8
5 minutes 5 seconds
Grade Level: 10 - 12
Side view of an engine. Caption: a NASCAR engine uses hydrocarbon molecules for fuel.
The Science of Speed
Episode 9
4 minutes 52 seconds
Grade Level: 10 - 12
A spiraling tube. Caption: They run into each other and cancel themselves out.
The Science of Speed
Episode 10
4 minutes 46 seconds
Grade Level: 10 - 12