Question 1

Pascal's principle applies to

Accepted Answer

A) liquids. 
B) gases. 
C) both of these 
D) neither of these 
A) liquids. 
B) gases. 
C) both of these 
D) neither of these

Question 2

Consider two mercury barometers,one with twice the cross-section area of the other.Mercury in the wider tube will rise

Accepted Answer

A) to the same height as in the narrow tube. 
B) twice as high as mercury in the narrow tube. 
C) four times as high as mercury in the narrow tube. 
D) more than four times as high as in the narrow tube. 
E) none of the above 
A) to the same height as in the narrow tube. 
B) twice as high as mercury in the narrow tube. 
C) four times as high as mercury in the narrow tube. 
D) more than four times as high as in the narrow tube. 
E) none of the above

Question 3

When holes are drilled through the wall of a water tower,water will spurt out with the greatest speed from the hole closest to the

Accepted Answer

A) bottom of the tower. 
B) middle of the tower. 
C) top of the tower. 
D) all the same 
A) bottom of the tower. 
B) middle of the tower. 
C) top of the tower. 
D) all the same

Question 4

Water pressure at the bottom of a lake depends on the

Accepted Answer

A) weight of water in the lake. 
B) surface area of the lake. 
C) depth of the lake. 
D) all of the above 
A) weight of water in the lake. 
B) surface area of the lake. 
C) depth of the lake. 
D) all of the above

Question 5

Compared with an empty ship,the same ship loaded with Styrofoam will float

Accepted Answer

A) higher in the water. 
B) lower in the water. 
C) at the same level in the water. 
A) higher in the water. 
B) lower in the water. 
C) at the same level in the water.

Question 6

Distinguish between pressure and force in the case of weighing yourself on a common bathroom scale.

Accepted Answer

By definition,pressure is the ratio of f

Question 7

Explain in terms of buoyant force how a fish is able to rise and sink in water.Contrast this to the way a submarine rises and sinks.

Accepted Answer

To rise or sink,a fish expands or contra

Question 8

When a gas in a container is squeezed to half its volume at constant temperature,the gas pressure

Accepted Answer

A) is half. 
B) doubles. 
C) quadruples. 
D) remains the same. 
A) is half. 
B) doubles. 
C) quadruples. 
D) remains the same.

Question 9

A common 5-L metal can will float in air if it is

Accepted Answer

A) evacuated of air. 
B) filled with a very large amount of helium. 
C) thrown high enough into the air. 
D) Nonsense! Unless the can and displaced air weigh the same,the can can't float in air. 
A) evacuated of air. 
B) filled with a very large amount of helium. 
C) thrown high enough into the air. 
D) Nonsense! Unless the can and displaced air weigh the same,the can can't float in air.

Question 10

Water pressure on a submerged object is greatest against its

Accepted Answer

A) top. 
B) bottom. 
C) sides. 
D) same against all surfaces 
E) none of the above 
A) top. 
B) bottom. 
C) sides. 
D) same against all surfaces 
E) none of the above

Question 11

A boat loaded with scrap iron floats in a swimming pool.When the iron is thrown overboard,the pool level will

Accepted Answer

A) rise. 
B) fall. 
C) remain unchanged. 
A) rise. 
B) fall. 
C) remain unchanged.

Question 12

When a 5-N block of wood floats in mercury the buoyant force on it is

Accepted Answer

A) less than 5 N. 
B) 5 N. 
C) greater than 5 N. 
A) less than 5 N. 
B) 5 N. 
C) greater than 5 N.

Question 13

When air gains speed in sweeping across a rooftop its internal pressure is

Accepted Answer

A) reduced. 
B) unaffected. 
C) increased. 
A) reduced. 
B) unaffected. 
C) increased.

Question 14

If air speed is greater along the top surface of a bird's wings,pressure of the moving air there is

Accepted Answer

A) unaffected. 
B) less. 
C) more. 
D) turbulent. 
A) unaffected. 
B) less. 
C) more. 
D) turbulent.

Question 15

The pressure in a liquid depends on liquid

Accepted Answer

A) density. 
B) depth. 
C) both of these 
D) none of the above 
A) density. 
B) depth. 
C) both of these 
D) none of the above

Question 16

How high can water be theoretically lifted by a vacuum pump at sea level?

Accepted Answer

A) less than 10.3 m 
B) 10.3 m 
C) more than 10.3 m 
A) less than 10.3 m 
B) 10.3 m 
C) more than 10.3 m

Question 17

When you stand on tiptoes on a bathroom scale,there is an increase in

Accepted Answer

A) weight reading. 
B) pressure on the scale,not registered as weight. 
C) both weight and pressure on the scale. 
D) none of the above 
A) weight reading. 
B) pressure on the scale,not registered as weight. 
C) both weight and pressure on the scale. 
D) none of the above

Question 18

Buoyant force is greatest on a submerged

Accepted Answer

A) 10-N block of lead. 
B) 10-N block of aluminum. 
C) same on each 
A) 10-N block of lead. 
B) 10-N block of aluminum. 
C) same on each

Question 19

A spinning tossed baseball veers off course in the direction of

Accepted Answer

A) reduced air pressure on the ball. 
B) increased air pressure on the ball. 
C) non-crowded streamlines. 
A) reduced air pressure on the ball. 
B) increased air pressure on the ball. 
C) non-crowded streamlines.

Question 20

According to the principle of continuity,the velocity of a fluid multiplied by the cross-sectional area through which it flows at one point will equal the product of

Accepted Answer

A) velocity and cross-sectional area at another point. 
B) velocity and pressure at another point. 
C) a constraint factor. 
D) none of the above 
A) velocity and cross-sectional area at another point. 
B) velocity and pressure at another point. 
C) a constraint factor. 
D) none of the above

Exam 5: Fluid Mechanics

Pascal's principle applies to

Consider two mercury barometers,one with twice the cross-section area of the other.Mercury in the wider tube will rise

When holes are drilled through the wall of a water tower,water will spurt out with the greatest speed from the hole closest to the

Water pressure at the bottom of a lake depends on the

Compared with an empty ship,the same ship loaded with Styrofoam will float

Distinguish between pressure and force in the case of weighing yourself on a common bathroom scale.

Explain in terms of buoyant force how a fish is able to rise and sink in water.Contrast this to the way a submarine rises and sinks.

When a gas in a container is squeezed to half its volume at constant temperature,the gas pressure

A common 5-L metal can will float in air if it is

Water pressure on a submerged object is greatest against its

A boat loaded with scrap iron floats in a swimming pool.When the iron is thrown overboard,the pool level will

When a 5-N block of wood floats in mercury the buoyant force on it is

When air gains speed in sweeping across a rooftop its internal pressure is

If air speed is greater along the top surface of a bird's wings,pressure of the moving air there is

The pressure in a liquid depends on liquid

How high can water be theoretically lifted by a vacuum pump at sea level?

When you stand on tiptoes on a bathroom scale,there is an increase in

Buoyant force is greatest on a submerged

A spinning tossed baseball veers off course in the direction of

According to the principle of continuity,the velocity of a fluid multiplied by the cross-sectional area through which it flows at one point will equal the product of

Patterns of Motion and Equilibrium

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Thermal Energy and Thermodynamics

Heat Transfer and Change of Phase

Static and Current Electricity

Magnetism and Electromagnetic Induction

Waves and Sound

Light

Atoms and the Periodic Table

The Atomic Nucleus and Radioactivity

Elements of Chemistry

How Atoms Bond and Molecules Attract

Mixtures

How Chemicals React

Two Classes of Chemical Reactions

Organic Compounds

Rocks and Minerals

Plate Tectonics and Earths Interior

Shaping Earths Surface

Geologic Time - Reading the Rock Record

The Oceans, Atmosphere, and Climatic Effects

Driving Forces of Weather

The Solar System

Stars and Galaxies

The Structure of Space and Time

Prologue: The Nature of Science

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