5
QuizMultiple Choice

Unit Test — Unit test

Question 5 • TPS-202526-SCI-Physical Science 1B-CR

In a car, how does an air bag minimize the force acting on a person during a collision?

Answer
A
It increases the change in momentum of the person.
B
It decreases the change in momentum of the person.
C
It increases the time it takes for the person to stop.
D
It decreases the time it takes for the person to stop.

Explanation

During a collision, the person’s momentum changes as they come to a stop. An air bag increases the time over which that change happens, reducing the average force because force equals change in momentum divided by time. So the correct choice is “It increases the time it takes for the person to stop.”

AI-written and checked against the verified answer.

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