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Vocabulary
Multiple Choice Test Questions
Laws and facts
Test Questions
Pressure Problems
100
The equivalence of buoyant force on an object and the weight of the fluid displaced by the object.
What is Archimedes’ Principle.
100
A resting object exerts pressure equal to this?
What is its weight divided by its contact area.
100
How much pressure in kPa does the Earth's atmosphere exert
What is 101 kPa
100
Explain how pressure is different than force.
What is a force is a push or pull, whereas a pressure is force per unit area.
100
Find the Pressure if Force = 2700N Area = 1.5 m^2 Hint: you must change it to kPa
What is 1.8 kPa
200
The SI unit of pressure, equal to 1 Newton per square meter (N/m2)
What is Pascal
200
Compared to the pressure exerted by a brick standing on its end, the pressure exerted by a brick resting on its side is this?
What is less
200
A change in pressure at any point in a fluid is transmitted equally and unchanged in all directions throughout a fluid.
What is the definition of Pascal's Principle.
200
Fluids flow and can take the shape of its containers are characteristics of this.
What is Two characteristics of a fluid.
200
Find the Pressure if Force = 1000N Area = 1.5 m^2 Hint: you must change it to kPa
What is 0.67 kPa
300
The ability of a fluid to exert an upward force on an object placed on it.
What is buoyancy.
300
The amount of water pressure you experience while swimming in a pool depends on this
What is how deep you are in the water.
300
As the speed of a fluid increases, the pressure within the fluid decreases.
What is the definition of Bernoulli's Principle
300
Weight and buoyant force are two determining factors on whether an object will do this.
What is float or sink.
300
Find the Pressure if Force = 5555N Area = 2.5 m^2 Hint: you must change it to kPa
What is 2.22 kPa
400
A device that uses a pressurized fluid acting on pistons of different sizes to increase force.
What is Hydraulic System
400
Blaise Pascal discovered that changes in pressure are....
What is transmitted equally throughout a fluid.
400
The buoyant force on an object is equal to the weight of the fluid displaced by the object.
What is the definition of Archimedes' Principle.
400
It is easier to float in the ocean than in a fresh water pool because of salt water has a greater....
What is salt water has a greater density.
400
Find the Force if Pressure = 2700kPa Area = 1.5 m^2
What is 4050 kPa*m^2
500
A substance or mixture that flows and has no shape of its own.
What is fluid
500
The buoyant force acting on a submerged object is equal to this..
What is the weight of the fluid displaced by the object.
500
Densities are often expressed in non-SI unites of this
What is grams per cubic centimeter.
500
A helium-filled balloon is less dense than air, thus it rises.
What is the explanation of why a helium balloon rises in air.
500
Find the Pressure if Force = 3000N Area =10 m^2 Hint: you must change it to kPa
What is 0.3 kPa