-Choose the correct answer by clicking on your answer choice. Only one answer is correct. (2 pts. each)
Question 1
1.
Question 2
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Question 3
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Question 4
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Question 5
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Question 6
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Question 7
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Question 8
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Question 9
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Question 10
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Question 12
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Question 13
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Question 14
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Question 15
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Question 16
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Question 17
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Question 18
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Question 19
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Question 20
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Question 21
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Question 22
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Question 23
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Question 24
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Question 25
25.
COMPLETION
-Complete the following questions by selecting the correct answer from the word bank. Misspelled words will be marked as incorrect. Some answers may be used more than once, others may not be used at all. (2 pts. each)
more thrust, less thrust, more gravity, less gravity, Archimedes' Principle, lift, buoyant force, Bernoulli's Principle, Pascal's Principle, drag, thrust, up, down, sideways, into, Venturi effect, hydraulic, compressed air,
swim bladder
Question 26
26.
A paper airplane thrown hard has ____________________ than one thrown lightly.
more thrust, less thrust, more gravity, less gravity, Archimedes' Principle, lift, buoyant force, Bernoulli's Principle, Pascal's Principle, drag, thrust, up, down, sideways, into, Venturi effect, hydraulic, compressed air, swim bladder
Question 27
27.
A single engine plane has __________________ than a jumbo jet.
more thrust, less thrust, more gravity, less gravity, Archimedes' Principle, lift, buoyant force, Bernoulli's Principle, Pascal's Principle, drag, thrust, up, down, sideways, into, Venturi effect, hydraulic, compressed air, swim bladder
Question 28
28.
A jumbo jet has ________________ acting on it than a single engine plane.
more thrust, less thrust, more gravity, less gravity, Archimedes' Principle, lift, buoyant force, Bernoulli's Principle, Pascal's Principle, drag, thrust, up, down, sideways, into, Venturi effect, hydraulic, compressed air, swim bladder
Question 29
29.
The fact that a heavy steel cargo ship can carry a large load without sinking
illustrates __________________________.
more thrust, less thrust, more gravity, less gravity, Archimedes' Principle, lift, buoyant force, Bernoulli's Principle, Pascal's Principle, drag, thrust, up, down, sideways, into, Venturi effect, hydraulic, compressed air, swim bladder
Question 30
30.
The forward force produced by an airplanes engine is called ________________.
more thrust, less thrust, more gravity, less gravity, Archimedes' Principle, lift, buoyant force, Bernoulli's Principle, Pascal's Principle, drag, thrust, up, down, sideways, into, Venturi effect, hydraulic, compressed air, swim bladder
Question 31
31.
A liquid exerts a(n) ___________________ on an object that increases as the
density of the fluid increases.
more thrust, less thrust, more gravity, less gravity, Archimedes' Principle, lift, buoyant force, Bernoulli's Principle, Pascal's Principle, drag, thrust, up, down, sideways, into, Venturi effect, hydraulic, compressed air, swim bladder
Question 32
32.
The forward force of a plane is opposed by _______________, which works against
it.
more thrust, less thrust, more gravity, less gravity, Archimedes' Principle, lift, buoyant force, Bernoulli's Principle, Pascal's Principle, drag, thrust, up, down, sideways, into, Venturi effect, hydraulic, compressed air, swim bladder
Question 33
33.
The forward force from an airplanes engine is called _____________.
more thrust, less thrust, more gravity, less gravity, Archimedes' Principle, lift, buoyant force, Bernoulli's Principle, Pascal's Principle, drag, thrust, up, down, sideways, into, Venturi effect, hydraulic, compressed air, swim bladder
Question 34
34.
Hydraulic devices lift objects using __________________________.
more thrust, less thrust, more gravity, less gravity, Archimedes' Principle, lift, buoyant force, Bernoulli's Principle, Pascal's Principle, drag, thrust, up, down, sideways, into, Venturi effect, hydraulic, compressed air, swim bladder
Question 35
35.
The density of a fluid affects the ____________________ it exerts.
MATCHING
-Complete the following matching questions by clicking on the correct answer. Only one answer is correct. (2 pts. each)
Question 36
36.
Question 37
37.
Question 38
38.
Question 39
39.
Question 40
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Question 41
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Question 42
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Question 43
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Question 44
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Question 45
45.
SHORT ANSWER
-Write in complete sentences to answer the following questions. One or two word responses will earn NO credit. Logically connect your thoughts and answer the question that is asked, not the question you think has been asked! (2 pts. each)
Question 46
46.
What happens if pressure is higher inside a tube of toothpaste than outside the
tube?
Question 47
47.
In a closed soda bottle, the force on the cap due to the carbonation of the soda
is 16 N. If the area of the bottle cap is 8 cm2, what is the pressure on the cap?
Question 48
48.
How can you determine the buoyant force acting on an object?
Question 49
49.
Pilots have to adjust a plane's wing flaps throughout a flight. Explain the purpose of these adjustments.
Question 50
50.
Why does water pressure increase as the depth of the water increases?
Do NOT forget to turn in this assignment on Google Classroom after you have submitted it here! No credit will be awarded for unsubmitted assignments.
How does atmospheric pressure change as you go from the top of a mountain to sea
level?
A The pressure decreases.
B The pressure stays the same.
C The pressure almost equals zero.
D The pressure increases.
How do soap bubbles become round?
A even air pressure
B neutral force
C gravity
D uneven air pressure
What does NOT affect an airplanes lift?
A turbulence
B air quality
C wing size
D speed
Of the following, where would atmospheric pressure be the greatest?
A at sea level
B on a mountain top
C at the altitude at which planes fly (35,000 ft.)
D at the outer edge of the atmosphere
When a fluid flows from area A to area B, area A is an area of greater
A temperature
B mass
C volume
D pressure
Why do air bubbles in water rise to the surface?
A Liquids cannot be compressed very much.
B Water is about 1000 times denser than air
C Pressure is the amount of force exerted on a given area.
D The weight of the atmosphere pushes down on the water.
Because fluid pressure is exerted evenly in all directions,
A some objects float
B birds and airplanes can fly
C bubbles are round
D objects seem to weigh less in water
Which of the following does NOT affect the amount of lift on an airplane's wing?
A turbulence
B gravity
C wing surface area
D the airplane's speed
Which of the following would NOT affect the level at which a ship cruises at
sea?
A the depth of the ocean
B the shape of the ship
C the mass of the ship's contents
D the density of the ship's material
Which statement is NOT true about fluids?
A All can flow
B Some take the shape of their container
C Liquids and gases are included
D Molecules move easily past each other
When air is pumped into a tire
A the force per unit area increases
B the number of pascals decreases
C the air molecules slow down
D the air takes up less space
The nitrogen, oxygen and other gases surrounding the Earth
A exert pressure only at sea level
B are pulled towards the Earth by gravity
C exert a pressure that works against atmospheric pressure
D are found mainly near the outer edge of the atmosphere
Water pressure
A decreases with depth
B is about twice as much on a diver at 10 m as at the surface
C is less than air pressure for the same volume of air and water
D is unaffected by atmospheric pressure
Air rushes into your lungs when you inhale because
A it contains oxygen
B the pressure inside the lungs is higher than outside the body
C a muscle moves upward and decreases the space in your chest
D fluids flow from areas of high pressure to areas of low pressure
Fluid pressure is always directed
A up
B down
C sideways
D in all directions
An object surrounded by a fluid will displace a volume of fluid that is
A equal to it's own volume
B less than it's own volume
C greater than it's own volume
D denser than itself
If an object weighing 50 N displaces a volume of water that weighs 30 N, what is the buoyant force on the object?
A 60 N
B 50 N
C 40 N
D 30 N
Find the pressure exerted by a 3000 N crate that has an area of 2 m2
A 6000 PSI
B 6000 Pa
C 1500 PSI
D 1500 Pa
What is affected by an airplanes speed?
A buoyancy
B gravity
C air quality
D lift
Why would a pilot adjust a plane's wing flaps?
A to reduce cabin pressure
B to increase drag
C to reduce drag
D to increase cabin pressure
Why would a 1cm3 piece of balsa wood be more buoyant than a 1cm3 piece of oak?
A Balsa has more mass per unit of volume
B Oak is more dense
C Balsa is stronger
D Oak is less dense
What happens in the lungs when you exhale?
A Air moves from high pressure (in the lungs) to low pressure (outside)
B Lung pressure decreases
C Space in your lungs increases
D Air moves from low pressure (in the lungs) to high pressure (outside)
What causes air to enter into a tornado?
A The air pressure is higher inside the tornado than outside
B The air pressure is lower outside the tornado than inside
C The air pressure is lower inside the tornado than outside
D The air pressure is the same inside and outside the tornado
Which of the following changes increases the overall density of the object?
A a block of iron is formed into a hollow shape
B a submarine fills it's ballast tanks with water
C a submarine fills it's ballast tanks with air
D a fish increases the amount of gas in its swim bladder
A helium filled balloon will float because
A there is more air than helium
B helium is less dense than air
C helium is as dense as air
D helium is more dense than air
In a strong wind, drag is the _______________ that you walk against.
A larger
B smaller
C more
D area
E less
F force
G turbulence
A hydraulic brake system in a car acts as a force multiplier because the pistons
that push the brake pads are ____________ than the piston that is pushed by the
brake pedal.
A larger
B smaller
C more
D area
E less
F force
G turbulence
Pressure is an amount of force exerted on a given _____________.
A larger
B smaller
C more
D area
E less
F force
G turbulence
Pushes an ice cube to the top of a glass of water
A a sinking object
B a floating object
C a buoyed-up object
D buoyant force
E density
F Archimedes' Principle
G compressed air
explains why the buoyant force on a rock that displaces 5 N of water is 5 N
A a sinking object
B a floating object
C a buoyed-up object
D buoyant force
E density
F Archimedes' Principle
G compressed air
has a weight of 10 N and a buoyant force of 10 N
A a sinking object
B a floating object
C a buoyed-up object
D buoyant force
E density
F Archimedes' Principle
G compressed air
has a weight of 15 N and a buoyant force of 18 N
A a sinking object
B a floating object
C a buoyed-up object
D buoyant force
E density
F Archimedes' Principle
G compressed air
can be decreased by making the shape hollow
A a sinking object
B a floating object
C a buoyed-up object
D buoyant force
E density
F Archimedes' Principle
G compressed air
has a density of 2.5 g/cm3 in water
A a sinking object
B a floating object
C a buoyed-up object
D buoyant force
E density
F Archimedes' Principle
G compressed air
is pumped into a submarine's ballast tank to decrease density