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Forces In Fluids
Test Description: This quiz covers concepts of buoyancy, pressure
Instructions: Answer all questions to get your test result.
1) The amount of force exerted on an area is known as
A
inertia
B
gravity
C
momentum
D
pressure
2) According to Pascal, pressure changes in fluids
A
is applicable only for liquids, not gases.
B
move to areas of least resistance.
C
only occurs in weightless situations, like in space.
D
are distributed equally.
3) Devices that use liquids to transmit pressure from one point to another are known as
A
hydraulic devices.
B
moving objects.
C
gravitational disturbances.
D
simple machines.
4) Bernoulli's principle states that pressure by a moving fluid is __________ the pressure of the fluid when it is not moving.
A
equal to
B
fluctuating depending on the temperature of the atmosphere
C
greater than
D
less than
5) Objects float or sink depending upon
A
the speed of the object
B
the amount of air in them.
C
the amount of matter present
D
their density in relation to the density of the medium.
6) Who stated that "the buoyant force on an object in a fluid is an upward force equal to the weight of the volume of fluid that the object displaces"?
A
Pascal
B
Bermoulli
C
Archimedes
D
Newton
7) Which of the following is an application of Bernoulli's Principle?
A
hydraulic engines
B
floating ships
C
inflated balloons
D
flying birds
8) When you inhale, fluids flow from ___________ to ___________ pressure.
A
high to low
B
low to low
C
low to high
D
high to high
9) When a balloon is squeezed, according to Pascal's Principle, where does the pressure inside the balloon increase the most?
A
Near the end farthest from the open end
B
Near the open end
C
in the center of the balloon
D
equally throughout the balloon
10) What force opposes or restricts motion in fluids?
A
sliding friction
B
rolling friction
C
drag
D
momentum
*select an answer for all questions
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