Name
,
SECTION
Date
3-1
Class
REVIEW AND REINFORCE
Pressure
. Understanding Main Ideas
Answer the following questions in the spaces provided.
1. What causes pressure in fluids?
2. What is the mathematical relationship between force, pressure, and area?
3. How does air pressure relate to elevation?
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4. How does water pressure relate to depth?
5. List the locations in the drawing below in order from least pressure to greatest
pressure.
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Building Vocabulary
Write an answerfor eachof thefollowing questionsin the spacesprovided.
6. What is pressure?
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7. What is a fluid?
8. What is one pascal of pressure?
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Motion, Forces, and Energy
TeachingResources M. 73
Name
-
Date
SECTION
3-2
Class
REVIEW
AND REINFORCE
Transmitting Pressure in a Fluid
Answer thefollowing questionsin the spacesprovided.
1. What is Pascal'sprinciple?
2. The diagram below shows a fluid-filled tube that multiplies the force applied
by the smaller piston. What is the device called?
3. If the right piston were removed and the fluid were no longer confined, this
device would be a force pump. What is a force pump used for?
m
4. As the left piston presses down with a force of 10 N, 2 Pa of pressure is
pushing against it. What is the pressure on the right piston?
t
5. The force exerted by the left piston is 10 N. What is the force exerted by the
right piston?
Force = 1ON
t
t
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ch
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Area = 5m2
Area
= 10m2
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Motion, Forces, and Energy
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TeachingResources M. 77
Name
t
SECTION
Date
3-3
Class
REVIEW AND REINFORCE
Floating and Sinking
. Understanding Main Ideas
Answer the following questions in the spacesprovided. Use the back of this sheet or a
separate sheet of paper if you need more room.
1. Explain why an object underwater feels lighter than when it is in air.
2. If an object that floats on the surface displaces 10 cm3of water, how much
does that object weigh?Explain how you know.
Bl
Fill in the table below.
t
.
Observation
ofobjectinfluid
Densityofobjectcompared
tothedensityofthefluid
Object sinks.
3.
Object floats on surface.
4.
Object floats at constant level.
5.
Building Vocabulary
Define each of the following in the spacesprovided.
0
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6. Archimedes' principle
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a:
7. density
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8. buoyant force
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-
Motion, Forces, and Energy
TeachingResources M. 81
Name
,
Date
SECTION 3-4
Class
REVIEW AND REINFORCE
Applying Bernoulli's Principle
.
Understanding Main Ideas
Answer the questions below in the spacesprovided. Use the back of this sheet or a
separate sheet of paper if you need more room.
B
1. Is air moving faster above the wing or below the wing?
t
2. Is the pressure greater above the wing or below the wing?
3. Is the wing being pushed upward or downward?
4. If the wind speeds up, what happens to the force of the push on the wing?
u
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J:
cb
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CD
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a..
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5. As the wind speeds up, what happens to the speed of the rising smoke in the
chimney? Explain why this happens.
. Building Vocabulary Skills
Define the term in your own words.
6. Bernoulli's principle
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Motion, Forces, and Energy
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TeachingResources M. 85