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Safety Features of a Car_1_

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					Safety Features of a Car
Claire Blakeley, Vicki Carnell & Lucy Tomkinson.

Introduction
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Cars today are much safer to travel in than cars ten or twenty years ago. As a result of crash tests, designs have changed and are still changing.

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Crumple Zones
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Crumple zones were first introduced in 1959.

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Crumple Zones, indicated here in red, were designed to absorb the energy of a collision by bending and breaking in a predictable manner. In doing so, the force of the collision would be diverted away from the passenger's compartment, thereby keeping him or her from serious injury.

Seat belts
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The seat belt was introduced by Nash Motors in 1949. Seat belts work in the same principle as crumple zones. They make the change in momentum take longer – so that the force is less.

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Airbags
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Airbags help cushion the impact, reducing your momentum more slowly so that the force is less. Airbags are intended to be used as a supplementary device to the seatbelt.


				
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posted:11/3/2009
language:English
pages:5