...Fluids

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The following three questions refer to the material you were to read in preparation to 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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1.

The atmospheric pressure at sea level is 1.013 x 105 N/m2. The unit of pressure N/m2 is also called a pascal (Pa). The surface area of an average adult body is about 2 m2. How much crushing force does the atmosphere exert on people? Why don't we get crushed?

Calculate this value in pounds using the fact that the weight of a 1 kilogram mass is 2.2 pounds.



2.

Consider a small boat in a swimming pool containing a clumsy professor and a 6 pack of his favorite beverage. The professor drops the 6 pack into the water and it sinks to the bottom of the pool. What happens to the water level in the pool?



3.

Atmospheric pressure is approximately

14 lbs/in2

1 atm

105 N/m2

all of the above are correct





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