Question 1

A one-ton blimp hovers in the air. The buoyant force acting on it is

Accepted Answer

A)  zero. 
B)  more than one ton. 
C)  one ton. 
D)  less than one ton. 
A)  zero. 
B)  more than one ton. 
C)  one ton. 
D)  less than one ton. C

Question 2

Ice cubes submerged at the bottom of a liquid indicate that the liquid

Accepted Answer

A)  is warmer than the ice. 
B)  produces no buoyant force on the ice. 
C)  is less dense than ice. 
D)  has dissolved air. 
E)  is not displaced by the submerged ice. 
A)  is warmer than the ice. 
B)  produces no buoyant force on the ice. 
C)  is less dense than ice. 
D)  has dissolved air. 
E)  is not displaced by the submerged ice. C

Question 3

When gas in a container is squeezed to half its volume, its density

Accepted Answer

A)  quadruples. 
B)  halves. 
C)  doubles. 
D)  remains the same. 
A)  quadruples. 
B)  halves. 
C)  doubles. 
D)  remains the same. C

Question 4

Two life preservers have identical volumes, but one is filled with styrofoam while the other is filled with sand. When the two life preservers are worn by swimmers so that one swimmer floats with part of the preserver above water, and the other swimmer sinks, the buoyant force is actually greater on the life preserver filled with

Accepted Answer

A)  sand. 
B)  styrofoam. 
C)  same 
A)  sand. 
B)  styrofoam. 
C)  same

Question 5

If a strong wind from the west breaks a window in the north wall of a house, most of the glass will fall

Accepted Answer

A)  inside the house. 
B)  outside the house. 
C)  upward. 
A)  inside the house. 
B)  outside the house. 
C)  upward.

Question 6

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

Accepted Answer

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

Question 7

The weight of a 1-square-meter column of air that extends from sea level to the top of the atmosphere is

Accepted Answer

A)  101 N. 
B)  10,100 N. 
C)  101,000,000 N. 
D)  101,000 N. 
A)  101 N. 
B)  10,100 N. 
C)  101,000,000 N. 
D)  101,000 N.

Question 8

Atmospheric pressure is caused by the

Accepted Answer

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

Question 9

If a weighted air-filled balloon sinks in deep water, it will

Accepted Answer

A)  be acted on by a continuously decreasing buoyant force. 
B)  likely burst if water pressure is great enough. 
C)  become less dense as it sinks. 
D)  likely sink to an equilibrium level before reaching bottom. 
E)  none of these 
A)  be acted on by a continuously decreasing buoyant force. 
B)  likely burst if water pressure is great enough. 
C)  become less dense as it sinks. 
D)  likely sink to an equilibrium level before reaching bottom. 
E)  none of these

Question 10

A fish normally displaces its own

Accepted Answer

A)  weight of water. 
B)  volume of water. 
C)  both of these 
D)  neither of these 
A)  weight of water. 
B)  volume of water. 
C)  both of these 
D)  neither of these

Question 11

On a windy day, atmospheric pressure

Accepted Answer

A)  remains unchanged. 
B)  decreases. 
C)  increases. 
A)  remains unchanged. 
B)  decreases. 
C)  increases.

Question 12

A floating ice cube contains small pieces of iron. During melting the water level will

Accepted Answer

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

Question 13

A dam is thicker at the bottom than at the top partly because

Accepted Answer

A)  surface tension exists only on the surface of liquids. 
B)  water is denser at deeper levels. 
C)  it looks better. 
D)  water pressure is greater with increasing depth. 
E)  none of these 
A)  surface tension exists only on the surface of liquids. 
B)  water is denser at deeper levels. 
C)  it looks better. 
D)  water pressure is greater with increasing depth. 
E)  none of these

Question 14

When an ice cube in a glass of water melts, the water level

Accepted Answer

A)  falls. 
B)  rises. 
C)  remains the same. 
A)  falls. 
B)  rises. 
C)  remains the same.

Question 15

The buoyant force on a rock is least when the rock is submerged

Accepted Answer

A)  near the bottom. 
B)  near the surface. 
C)  halfway to the bottom. 
D)  all of the above 
A)  near the bottom. 
B)  near the surface. 
C)  halfway to the bottom. 
D)  all of the above

Question 16

Compared to the buoyant force of the atmosphere on a 1-liter helium-filled balloon, the buoyant force of the atmosphere on a nearby 1-liter solid iron block is

Accepted Answer

A)  the same. 
B)  considerably less. 
C)  considerably more. 
A)  the same. 
B)  considerably less. 
C)  considerably more.

Question 17

A swimmer cannot use a long hose to snorkel more than a meter deep because air

Accepted Answer

A)  in the lungs cannot easily be expelled. 
B)  is buoyed up leaving the swimmer breathless. 
C)  tends to liquify in the snorkel tube. 
D)  at the surface will not freely enter the higher-pressure region in the compressed lungs. 
E)  all of these 
A)  in the lungs cannot easily be expelled. 
B)  is buoyed up leaving the swimmer breathless. 
C)  tends to liquify in the snorkel tube. 
D)  at the surface will not freely enter the higher-pressure region in the compressed lungs. 
E)  all of these

Question 18

Compared to the buoyant force of the atmosphere on a 1-kilogram helium-filled balloon, the buoyant force of the atmosphere on a nearby 1-kilogram solid iron block is

Accepted Answer

A)  considerably more. 
B)  considerably less. 
C)  the same. 
A)  considerably more. 
B)  considerably less. 
C)  the same.

Question 19

Lobsters live on the bottom of the ocean. The density of a lobster is

Accepted Answer

A)  less than the density of sea water. 
B)  greater than the density of sea water. 
C)  equal to the density of sea water. 
A)  less than the density of sea water. 
B)  greater than the density of sea water. 
C)  equal to the density of sea water.

Question 20

In a hydraulic-press operation, it is impossible for the

Accepted Answer

A)  force output to exceed the force input. 
B)  energy output to exceed the energy input. 
C)  output displacement to exceed the input displacement. 
D)  output piston's speed to exceed the input piston's speed. 
E)  none of these 
A)  force output to exceed the force input. 
B)  energy output to exceed the energy input. 
C)  output displacement to exceed the input displacement. 
D)  output piston's speed to exceed the input piston's speed. 
E)  none of these

A one-ton blimp hovers in the air. The buoyant force acting on it is

Ice cubes submerged at the bottom of a liquid indicate that the liquid

When gas in a container is squeezed to half its volume, its density

If a strong wind from the west breaks a window in the north wall of a house, most of the glass will fall

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

The weight of a 1-square-meter column of air that extends from sea level to the top of the atmosphere is

Atmospheric pressure is caused by the

If a weighted air-filled balloon sinks in deep water, it will

A fish normally displaces its own

On a windy day, atmospheric pressure

A floating ice cube contains small pieces of iron. During melting the water level will

A dam is thicker at the bottom than at the top partly because

When an ice cube in a glass of water melts, the water level

The buoyant force on a rock is least when the rock is submerged

Compared to the buoyant force of the atmosphere on a 1-liter helium-filled balloon, the buoyant force of the atmosphere on a nearby 1-liter solid iron block is

A swimmer cannot use a long hose to snorkel more than a meter deep because air

Compared to the buoyant force of the atmosphere on a 1-kilogram helium-filled balloon, the buoyant force of the atmosphere on a nearby 1-kilogram solid iron block is

Lobsters live on the bottom of the ocean. The density of a lobster is

In a hydraulic-press operation, it is impossible for the

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Heat Transfer and Change of Phase

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Magnetism and Electromagnetic Induction

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Light Waves

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Exam 7: Fluid Mechanics

A one-ton blimp hovers in the air. The buoyant force acting on it is

Ice cubes submerged at the bottom of a liquid indicate that the liquid

When gas in a container is squeezed to half its volume, its density

If a strong wind from the west breaks a window in the north wall of a house, most of the glass will fall

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

The weight of a 1-square-meter column of air that extends from sea level to the top of the atmosphere is

Atmospheric pressure is caused by the

If a weighted air-filled balloon sinks in deep water, it will

A fish normally displaces its own

On a windy day, atmospheric pressure

A floating ice cube contains small pieces of iron. During melting the water level will

A dam is thicker at the bottom than at the top partly because

When an ice cube in a glass of water melts, the water level

The buoyant force on a rock is least when the rock is submerged

Compared to the buoyant force of the atmosphere on a 1-liter helium-filled balloon, the buoyant force of the atmosphere on a nearby 1-liter solid iron block is

A swimmer cannot use a long hose to snorkel more than a meter deep because air

Compared to the buoyant force of the atmosphere on a 1-kilogram helium-filled balloon, the buoyant force of the atmosphere on a nearby 1-kilogram solid iron block is

Lobsters live on the bottom of the ocean. The density of a lobster is

In a hydraulic-press operation, it is impossible for the

About Science

Atoms

Equilibrium and Linear Motion

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Temperature, Heat, and Thermodynamics

Heat Transfer and Change of Phase

Static and Current Electricity

Magnetism and Electromagnetic Induction

Waves and Sound

Light Waves

Properties of Light

Quantum Theory

The Atomic Nucleus and Radioactivity

Physics of Rotation and Equilibrium

Filters