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Senior High School: 11th and 12th Grade
Physics
Forces - Hydraulics
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Q.1
What fact can be said of liquids?
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They are virtually incompressible
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Easily compressible
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All liquids have the same molecules
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No liquid can be mixed with another liquid
Q.2
What is the formula used to calculate pressure in different parts of a hydraulic system?
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P = F x A
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A = F x P
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P = F⁄A
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P = A⁄F
Q.3
If a system has an area of 2 m at its effort side and 5 m at its load side, how much more force does the load side experience?
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100% more
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200% more
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250% more
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300% more
Q.4
Which of the following can benefit from the use of hydraulics?
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Digger
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Glass cup
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Printer
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All of the above
Q.5
What is the length of a rectangle within a hydraulic system having a width of 5 m that is subjected to a pressure of 15 Pa and a force of 15 N?
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0.1 m
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0.2 m
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0.5 m
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1 m
Q.6
A 2 cm x 5 cm rectangle within a hydraulic system experiences a force of 50 N. What is the pressure within the system?
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50 Pa
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500 Pa
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5 Pa
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50,000 Pa
Q.7
What are the units of pressure?
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Coulombs
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Pascals
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Volts
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Newtons
Q.8
Different cross-sectional areas on the effort and load sides of a hydraulic system enables it to be used as a what?
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Boat
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Force multiplier
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Mass multiplier
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Electron multiplier
Q.9
How is pressure distributed in a liquid?
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Non-uniformly in one direction
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Equally in one direction
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Equally in all directions
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Non-uniformly in all directions
Q.10
What is the pressure of a system which experiences a force of 100 N over an area of 10 m ?
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1 Pa
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10 Pa
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100 Pa
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0.1 Pa
0 h : 0 m : 1 s
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