Physical Science Ch 13 Review Question Preview (ID: 18276)
Ch 13 Fluids.
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In order to calculate pressure exerted on a surface, what quantity is divided by the surface area?
a) altitude
b) force
c) mss
d) volume
If the air inside a balloon exerts a force of 1.5 N on an area of 0.5 m2, what is the pressure inside the balloon?
a) 0.5 N/m2
b) 1.5 N/m2
c) 2.5 N/m2
d) 3 N/m2
What is the SI unit of pressure?
a) g/cm3
b) m/s2
c) the newton
d) the pascal
A pressue of 70 N/2 equals
a) 7 Pa
b) 70 Pa
c) 700 Pa
d) 7000 Pa
Where is fluid pressure greatest?
a) 30 centimeters below the surface of a swimming pool.
b) 1 meter below the surface of the swimming pool
c) 2 meters below the surface of the swimming pool
d) The pressure is the same in all parts of the swimming pool.
Which of the following matreials is NOT a fluid?
a) air
b) cork
c) gasoline
d) water
Which of the following is NOT possible?
a) compressing 10 liters of oxygen gas into a 1-liter volume
b) compressing 2 liters of water into a 1-liter volume
c) filling a balloon using helium gas from a pressurized tank
d) allowing 5 liters of compressed air to expand to a volume of 100 liters
The pressure of a fluid at a specific depth
a) depends only on the type of fluid
b) is exerted only in the downward direction.
c) varies with the total volume of the fluid.
d) all of the above.
Two identical test tubes are filled with equal volumes of water and mercury. Which of the following statements is true?
a) The weight of both liquids is the same.
b) The bottom area of both test tubes is the same.
c) The pressure at the bottom of both test tubes is the same.
d) All of the above.
Atmospheric pressure is caused by
a) air currents
b) the weight of the atmosphere above a particular location
c) clouds
d) the altitude above sea level.
The pressure is caused by
a) air currents
b) the weight of the atmosphere above a particular location
c) clouds
d) the altitude above sea level
Which principle states that a change in the pressure at any point in fluid in a closed container is transmitted equally in all directions throughout the fluid?
a) Archimedes' principle
b) Bernoulli's principle
c) Newton's principle
d) Pascal's principle
The operation of a hydraulic lift system is explained by
a) Archimedes' principle
b) Bernoulli's principle
c) Newton's principle
d) Pascal's principle
Where will the greatest increase in pressure occur if you squeeze the middle of a upright, closed soft-drink bottle?
a) The greatest increase in pressure will occur at the top of the bottle.
b) The greatest increase in pressure will occur in the middle of the bottle.
c) The greatest increase in pressure will occur on the bottom of the bottle.
d) The pressure will increase equally everywhere within the bottle.
The hydraulic system of a dump truck is designed to multiply.
a) distance
b) force
c) pressure
d) speed
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