Question 1

Buoyant force is greatest on a submerged 1-cm3 block of

Accepted Answer

A) lead. 
B) aluminum. 
C) same on each 
A) lead. 
B) aluminum. 
C) same on each

Question 2

Airplane flight best illustrates

Accepted Answer

A) Archimedes' principle. 
B) Pascal's principle. 
C) Bernoulli's principle. 
D) Boyle's law. 
A) Archimedes' principle. 
B) Pascal's principle. 
C) Bernoulli's principle. 
D) Boyle's law.

Question 3

As a person holding her breath swims deeper and deeper in a lake,her density

Accepted Answer

A) increases. 
B) decreases. 
C) remains the same. 
A) increases. 
B) decreases. 
C) remains the same.

Question 4

Atmospheric pressure is caused by the

Accepted Answer

A) density of the atmosphere. 
B) weight of the atmosphere. 
C) temperature of the atmosphere. 
D) effect of the Sun's energy on the atmosphere. 
A) density of the atmosphere. 
B) weight of the atmosphere. 
C) temperature of the atmosphere. 
D) effect of the Sun's energy on the atmosphere.

Question 5

Which will remain the same for two identical books,one lying flat and the other standing on an end?

Accepted Answer

A) weight only 
B) pressure only 
C) both pressure and weight 
D) none of the above 
A) weight only 
B) pressure only 
C) both pressure and weight 
D) none of the above

Question 6

A column of contained air extends from sea level to the top of the atmosphere.The contained air has mass.If the column instead contained the same mass of water,its height would be

Accepted Answer

A) 1/13.6 times as high as the atmosphere. 
B) about 3/4 m high. 
C) 10.3 m high. 
D) about 5.6 km high. 
A) 1/13.6 times as high as the atmosphere. 
B) about 3/4 m high. 
C) 10.3 m high. 
D) about 5.6 km high.

Question 7

An egg is placed at the bottom of a bowl filled with water.Salt is slowly added to the water until the egg rises and floats.From this experiment,we conclude that

Accepted Answer

A) egg-shell calcium is repelled by sodium chloride. 
B) the density of salt water exceeds the density of the egg. 
C) buoyant force is not always exerted upward. 
D) salt sinks to the bottom. 
E) none of the above 
A) egg-shell calcium is repelled by sodium chloride. 
B) the density of salt water exceeds the density of the egg. 
C) buoyant force is not always exerted upward. 
D) salt sinks to the bottom. 
E) none of the above

Question 8

A fish normally displaces its own

Accepted Answer

A) volume of water. 
B) weight of water. 
C) both of these 
D) none of the above 
A) volume of water. 
B) weight of water. 
C) both of these 
D) none of the above

Question 9

The air in your cousin's room has

Accepted Answer

A) mass. 
B) weight. 
C) energy. 
D) all of the above 
E) none of the above 
A) mass. 
B) weight. 
C) energy. 
D) all of the above 
E) none of the above

Question 10

Two life preservers have identical volumes,one filled with Styrofoam and the other filled with sand.When both are fully submerged,the buoyant force is greater on the one filled with

Accepted Answer

A) Styrofoam. 
B) sand. 
C) same on each if volumes remain the same. 
A) Styrofoam. 
B) sand. 
C) same on each if volumes remain the same.

Question 11

Compared with an alcohol barometer,the column height for a mercury barometer would be

Accepted Answer

A) lower. 
B) higher. 
C) the same. 
A) lower. 
B) higher. 
C) the same.

Question 12

While you are standing,your blood pressure is normally greatest in your

Accepted Answer

A) head. 
B) heart. 
C) feet. 
D) same in each 
A) head. 
B) heart. 
C) feet. 
D) same in each

Question 13

A rising balloon is buoyed up with a force equal to the

Accepted Answer

A) weight of air it displaces. 
B) density of surrounding air. 
C) atmospheric pressure. 
D) weight of the balloon and its contents. 
E) all of the above 
A) weight of air it displaces. 
B) density of surrounding air. 
C) atmospheric pressure. 
D) weight of the balloon and its contents. 
E) all of the above

Question 14

If one of the caissons of the Falkirk Wheel contained a sunken boat,resting on its bottom,and the other carried a floating boat,the wheel balance would

Accepted Answer

A) still be maintained. 
B) be upset and more energy would be needed for operation. 
C) render the machine useless. 
D) violate Archimedes' principle. 
A) still be maintained. 
B) be upset and more energy would be needed for operation. 
C) render the machine useless. 
D) violate Archimedes' principle.

Question 15

Suppose you stand on a weighing scale and all of a sudden the atmosphere vanishes.The reading on the scale would

Accepted Answer

A) increase. 
B) decrease. 
C) remain the same. 
A) increase. 
B) decrease. 
C) remain the same.

Question 16

The density of a submarine cruising beneath the ocean surface has the same density as

Accepted Answer

A) a crab. 
B) iron. 
C) a floating submarine. 
D) ocean water. 
E) none of the above 
A) a crab. 
B) iron. 
C) a floating submarine. 
D) ocean water. 
E) none of the above

Question 17

The density of air at room temperature is about 1.2 g/cm3.This is the same as

Accepted Answer

A) 12 kg/m3. 
B) 120 kg/m3. 
C) 1200 kg/m3. 
A) 12 kg/m3. 
B) 120 kg/m3. 
C) 1200 kg/m3.

Question 18

Two identical tubes are filled with water,one with fresh water and one with salt water.The pressure is greater at the bottom of the tube with

Accepted Answer

A) fresh water. 
B) salt water. 
C) both the same 
D) depends on whether the tubes have the same cross-sectional area 
A) fresh water. 
B) salt water. 
C) both the same 
D) depends on whether the tubes have the same cross-sectional area

Question 19

The concept of pressure involves both

Accepted Answer

A) force and volume. 
B) force and area. 
C) area and volume. 
A) force and volume. 
B) force and area. 
C) area and volume.

Question 20

A spinning tossed baseball veers off course in the direction of

Accepted Answer

A) crowded streamlines. 
B) non-crowded streamlines. 
C) onward-coming streamlines. 
A) crowded streamlines. 
B) non-crowded streamlines. 
C) onward-coming streamlines.

Exam 5: Fluid Mechanics

Buoyant force is greatest on a submerged 1-cm3 block of

Airplane flight best illustrates

As a person holding her breath swims deeper and deeper in a lake,her density

Atmospheric pressure is caused by the

Which will remain the same for two identical books,one lying flat and the other standing on an end?

A column of contained air extends from sea level to the top of the atmosphere.The contained air has mass.If the column instead contained the same mass of water,its height would be

An egg is placed at the bottom of a bowl filled with water.Salt is slowly added to the water until the egg rises and floats.From this experiment,we conclude that

A fish normally displaces its own

The air in your cousin's room has

Two life preservers have identical volumes,one filled with Styrofoam and the other filled with sand.When both are fully submerged,the buoyant force is greater on the one filled with

Compared with an alcohol barometer,the column height for a mercury barometer would be

While you are standing,your blood pressure is normally greatest in your

A rising balloon is buoyed up with a force equal to the

If one of the caissons of the Falkirk Wheel contained a sunken boat,resting on its bottom,and the other carried a floating boat,the wheel balance would

Suppose you stand on a weighing scale and all of a sudden the atmosphere vanishes.The reading on the scale would

The density of a submarine cruising beneath the ocean surface has the same density as

The density of air at room temperature is about 1.2 g/cm3.This is the same as

Two identical tubes are filled with water,one with fresh water and one with salt water.The pressure is greater at the bottom of the tube with

The concept of pressure involves both

A spinning tossed baseball veers off course in the direction 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

Filters

Buoyant force is greatest on a submerged 1-cm³ block of

The density of air at room temperature is about 1.2 g/cm³.This is the same as