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WorksheetsPascal's Principle
Total questions: 13
Worksheet time: 8mins
Pressure can be measured in Pascals (Pa) or Newtons per square meter.
1 Pa = 1N/m2
True
False
Which statement correctly describes pressure?
the applied force that acts on an object
force per unit area
the area to which a force is applied
force times surface area
As the area a force acts on increases, the force exerted on each unit of area
increases
decreases
remains constant
What is the greatest benefit of using hydraulics?
The multiplication of speed
The multiplication of operating time
The multiplication of fuel efficiency
The multiplication of force
The largest barometer ever built was an oil-filled barometer constructed in Leicester, England in 1991. At an atmospheric pressure of 1.013 × 105 Pa, height of the oil column was 12.2 m.
What was the density of the oil used in the barometer?
330.33 kgm−3
846.40 kgm−3
830.32 kgm−3
231.03 kgm−3
In a car lift, compressed air exerts a force, F1 on a small piston having a radius of 5.5 cm. This pressure is transmitted to a second piston of radius 20 cm as shown in figure above. The mass of the car is 1250 kg.
Calculate the pressure on the smaller piston F1.
6.25 kPa
61.31 kPa
97.57 kPa
306.56 kPa
Weight of the car is 2.6 x 106 kg. Ratio between master piston to slave piston is 1 : 15. What if force exerted to the master piston.
1.73 x 105 N
1.7 x 106 N
3.9 x 107 N
3.83 x 108 N
In a hydraulic press, the ratio between the radius of the two pistons is 35 .What is the multiplying factor of the hydraulic press?
35
53
925
259
In the figure below, a hydraulic press is used to lift up a mass 𝑀 a distance of 1 cm. If the efficiency of the press is 90% and the work exerted on the smaller piston is 800 J. Calculate the maximum mass which can be lifted by the press.
90.61 kg
73.4 kg
720 kg
888.9 kg
