Physical Science Chapter 13 Test B
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Physical Science Chapter 13 Test B

Multiple Choice
Identify the choice that best completes the statement or answers the question.


Which of the following substances will float in corn syrup? (The density of corn syrup is 1.38 g/cm3.)
copper (8.9 g/cm3)
iron (7.8 g/cm3)
silver (10.5 g/cm3)
glycerin (1.26 g/cm3)


Which of the following substances will sink in glycerin? (The density of glycerin 1.26 g/cm3.)
water (1.00 g/cm3)
benzene (0.90 g/cm3)
ethyl alcohol (0.81 g/cm3)
aluminum (2.70 g/cm3)


A cork is floating in salty water. As more salt is added to the water to increase its density, the cork will
float at a higher level in the water.
float at a lower level in the water.
float at the same level in the water.


Two identical corks float in separate beakers. One beaker contains distilled water. The other contains very salty water. Which of the following statements is true?
The corks float at the same level in both liquids.
The cork in the very salty water floats at a lower level than the other cork.
The corks will eventually sink.
Both corks are subject to the same buoyant force.


Why does a hot-air balloon float?
The shape of the balloon provides lift.
The volume of the air displaced by the balloon is less than the volume of the balloon.
The weight of the air displaced is less than the volume of the balloon.
The weight of the balloon is less than the weight of the air displaced by the balloon.

Complete each statement.


Pressure is the result of force distributed over a(an) ____________________.



The formula co007-1.jpg is used to calculate ____________________.



The SI unit of pressure is the ____________________.



A pascal, the SI unit of pressure, is equal to 1 newton per ____________________.



A substance that flows and assumes the shape of its container is a(an) ____________________.



As a liquid is added to a beaker, the pressure exerted by the liquid on the bottom of the beaker ____________________.



The pressure exerted by a fluid at any given depth is exerted ____________________ in all directions.



As your altitude increases, air pressure ____________________.



A hydraulic jack is an application of ____________________ principle.



A device that uses pressurized fluids acting on pistons of different sizes to change a force is called a(an) ____________________.



As the speed of a fluid increases, the ____________________ within the fluid decreases.



In a hydraulic lift system, the fluid pressure exerted throughout the system is ____________________.



The downward force produced when air flows over the winglike spoiler on a race car is an example of ____________________ principle.



The apparent loss of weight of an object in a fluid is called ____________________.



The direction of the buoyant force on an object placed in a fluid is ____________________.



Even a rock at the bottom of a lake has a(an) ____________________ force acting upward on it.



The unit g/cm3 is often used to express ____________________.



As you climb a high mountain, the buoyant force exerted on you by the atmosphere ____________________.



A submerged submarine alters its ____________________ to rise or fall in the water.



The weight of an object that sinks in a fluid is ____________________ than the buoyant force acting on it.


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