FLuids Unit Test Guide

Compared to a man standing on a tall mountain, a man standing at sea level 

• has less atmospheric pressure on him 
• has more atmospheric pressure on him 
• weighs less 
• has more mass 

When you squeeze a bottle in the middle with a force what force is applied to the fluid at the top of the bottle 

• less force 
• more force 
• the same force
• cannot be predicted 

What system used in many applications like forklifts or jacks works on Pascal's principle 

• hydraulics 
• sprockets 
• widgets
• brakes 

whose principle says when a fluid's speed increases the pressure of that fluid decreases 

• Archimedes'
• Pascal's
• Einstein's
• Bernoulli's 

whose principle says buoyant force = the weight of the fluid an object displaces 

• Archimedes
• Pascal
• Bernoulli
• Einstein 

The pressure resulting from a force of 50 N exerted over an area of 5 m² is

• 10 Nm²

• 0.1 Nm²

• 10 N m^-2

• 0.1 Pa

A boy weighing 65kgf wear a shoes of area 10cm² , and a girl weighing 40 kgf wears sandals with heel of area 2 cm² . compare the pressure exerted.

• 13 : 4

• 13 : 40

• 65 : 20

• 6.5 : 2.0

In a hydraulic machine, a force of 2.25 N is applied on the piston of area 5 cm². what force is obtained on the bigger pistion of area 100cm² ?

• 45 N

• 225 N

• 450 N

• 22.5 N

A system that multiplies force by transmitting pressure from a small surface area through a confined fluid to a larger surface area.

• hydraulic system
• archimedes system
• pressure system
• bernoulli effect

The rule that when force is applied to a confined fluid, the increase in pressure is transmitted equally throughout.

• pascal's principle
• bernoulli's principle
• archimedes' principle
• Newton's Law