Pascal’s principle states that a change in pressure applied to an enclosed fluid is transmitted:
a) Only downward
b) Unequally in all directions
c) Equally in all directions
d) Only in the direction of the applied force
Which of the following devices operates on Pascal’s principle?
a) Hydraulic lift
b) Electric motor
c) Steam engine
d) Gas turbine
Pascal’s principle is applicable to which type of fluid?
a) Only gases
b) Only liquids
c) Both gases and liquids
d) Only solids
Which of the following is an example of Pascal’s principle in action?
a) Airplane wings generating lift
b) A car’s hydraulic braking system
c) A person pushing a shopping cart
d) A pendulum swinging back and forth
In a hydraulic system, if a small force is applied to a small piston, the force exerted on a larger piston is:
a) Smaller
b) Equal
c) Larger
d) Zero
The pressure exerted by a fluid in a closed system depends on:
a) The shape of the container
b) The amount of fluid present
c) The depth and density of the fluid
d) The temperature of the container
A hydraulic press works by:
a) Reducing friction
b) Using a smaller force over a larger area
c) Using a larger force over a smaller area
d) Increasing temperature
Which formula represents Pascal’s principle?
a)
𝑃
=
𝐹
/
𝐴
P=F/A
b)
𝑃
=
𝜌
𝑔
ℎ
P=ρgh
c)
𝐹
=
𝑚
𝑎
F=ma
d)
𝑊
=
𝑚
𝑔
W=mg
𝑃
=
𝐹
/
𝐴
P=F/A
Which of the following best describes the function of a hydraulic jack?
a) Converts electrical energy into motion
b) Uses pressure to multiply force
c) Uses gears to lift loads
d) Uses gravity to generate force
What happens when pressure is applied to an incompressible fluid in a confined space?
a) It is transmitted in one direction
b) It is transmitted equally in all directions
c) It compresses the fluid
d) It creates a vacuum
Pascal’s principle is used in:
a) Hydraulic brakes
b) Airplane wings
c) Electric circuits
d) Sound waves
If a force of 50 N is applied to a 5 cm² piston, what pressure is transmitted through the fluid?
a) 10 Pa
b) 1000 Pa
c) 5000 Pa
d) 250 Pa
A larger piston in a hydraulic press exerts:
a) The same force as the smaller piston
b) A larger force than the smaller piston
c) A smaller force than the smaller piston
d) No force at all
Which of these does NOT use Pascal’s principle?
a) Hydraulic jack
b) Bicycle pump
c) Car brake system
d) Hydraulic press
Hydraulic systems use:
a) Compressible fluids
b) Incompressible fluids
c) Gases only
d) Solids
Pascal’s principle is used in which medical device?
a) Stethoscope
b) Hydraulic blood pressure monitor
c) Pacemaker
d) MRI machine
A dentist’s chair is lifted using:
a) A pulley system
b) Pascal’s principle
c) Electric motors
d) Magnetic force
If the input force in a hydraulic lift is 10 N and the output force is 100 N, what is the force multiplication factor?
a) 5
b) 10
c) 50
d) 100
A car brake system works by:
a) Multiplying force using fluid pressure
b) Reducing force using air resistance
c) Generating force through friction
d) Absorbing force using springs
The SI unit of pressure is:
a) Newton
b) Joule
c) Pascal
d) Watt
If the area of a large piston is 10 times greater than the small piston, the force on the larger piston is:
a) 10 times smaller
b) 10 times greater
c) Equal
d) Zero
The principle behind hydraulic cranes is:
a) Bernoulli’s principle
b) Pascal’s principle
c) Newton’s third law
d) Hooke’s law
In a hydraulic system, an increase in force is achieved by:
a) Decreasing the applied pressure
b) Increasing the applied pressure
c) Increasing the area of the output piston
d) Decreasing the area of the output piston
What is the main advantage of a hydraulic system?
a) It generates more heat
b) It allows large forces with small effort
c) It reduces the weight of objects
d) It increases friction
Which industry extensively uses hydraulic machines?
a) Textile
b) Construction
c) Agriculture
d) IT
The efficiency of a hydraulic system is reduced due to:
a) High pressure
b) Fluid leakage
c) Increased force
d) Reduced piston area
How does increasing the pressure in a hydraulic system affect the output force?
a) It decreases the output force
b) It increases the output force
c) It has no effect
d) It reduces the pressure on the fluid
Which statement best summarizes Pascal’s principle?
a) Pressure applied to an enclosed fluid is transmitted undiminished in all directions
b) Fluid pressure depends only on volume
c) Pressure is higher at the top of a container
d) Fluids always compress under pressure
