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The following three questions refer to the material you were to read in preparation for the lesson. Questions one and two require you to write a three or four sentence response. Number three is a multiple choice question. Click in the appropriate circle.

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I.

The air bags are now required in all automobiles sold in the United States. The air bags act to reduce the severity of injury during a collision.

1) Identify the physics concepts that describe how air bags reduce the severity of injuries during a collision.

2) How does the force exerted on the person by the air bag compare to the force on the air bag?

The front seat air bags are designed to inflate when the automobile is involved in a front-end collision. The sensor used to trigger the inflating the air bag must sense conditions that would only occur during a front end collision.

3) Which motion quantity (or quantities) of the automobile should the air bag triggering sensor monitor to determine if a collision is occuring?

An automobile is cruising down a highway with an initial speed of 35 meters per second when the driver sees an impending collision and slams on the brakes. The brakes will cause the automobile to accelerate at a rate of -10 meters per second per second.

4) Compared to the acceleration of the automobile, the acceleration of the passengers in the automobile is:

a The same acceleration

b Smaller negative acceleration

c Larger negative acceleration

d more data are needed to answer

HONORS

This is a Java 1.1 applet demonstrating 2D collisions.

3.

You may change your mind as often as you wish. When you are satisfied with your responses, click the SUBMIT button.

I received no help from anyone on this assignment.

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