Airbags

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by smkearson567448cc9d034
Last updated 5 years ago

Discipline:
Science
Subject:
Technology
Grade:
6,7,8,9,10

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Airbags

Air Bag Safety

Shannon Kearson12-20-15, P5

Air bags are bags filled with nitrogen gas that are used to protect passangers from head injuries once a vehicle has collided with an object at an intense speed.Airbags are usually located in steering wheel, the dashboard, and on the sides of the car.

There are two main parts of an airbag. One part is the sensor. This is what tells the airbag that their has been an incredible impact on your vehicle. The second part is the air bag module unit which contains an inflator assembly, a nylon bag and a breakaway cover. Electric currents from the sensor travel to the inflator assembly to release the airbag.

Airbags are used to slow down a passanger's speed once the car crashes. Because the body moves so quickly, the airbag must move just as fast. The chance of surviving with an airbag is much higher than driving without one.

Airbags are most dangerous to children under the age of 12 and infants. If a passanger is dispositioned in their seat, this could effect the severeness of the injury as well. Adults should sit at least 10-12 inches away from the steering wheel/dashboard so that impact is not as harsh. All passangers of any age should also wear a seat belt. In some cases, this will stop the movement of a person's body before it even hits the airbag.

A smart airbag is a computor that monitors the size and position of the seat which tells the airbag to deploy. Cars contain smart airbags now because the original ones cause more injuries. These airbags can sense wether the driver or passanger are wearing their seatbelts and which direction the crash is coming in. If the airbag senses that they are not buckled up, then the airbag will deploy slower than it would if they were.

The momentum of an object (the passanger) is it's mass and velocity. A force needs to be acted upon it to slow the object down. When the passanger hits the dashboard or the windshield, they slow down. They are also injured now, but they have stopped. The passganer will have less damage depending on how much time the force has to act on the passanger.

How Do Airbags Work?

What Are Airbags?

Why Do We Use Airbags?

Risks & Precautions

What Are Smart Airbags?

Force & Momentum

Newtons Laws

Newtons First Law states that an object at rest will stay at rest unless another force is acted upon it. In the case of a car accident, a person's body is the object and until the car is hit by another force, the person will not move.Newtons Second Law states that all forces are balanced. If a car crashes into another object with a certain famount of force, then the passanger will crash at the same amount of force, too.

Newton's Third Law states that for every action, there is a equal and opposite reaction. For example, if the passanger hits the airbag, then the airbag will also hit the passanger at the same time and with the same amount of force.


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