Question 1

The process of boiling water tends to

Accepted Answer

A) warm the water. 
B) cool the water. 
C) both of these 
D) none of the above 
A) warm the water. 
B) cool the water. 
C) both of these 
D) none of the above

Question 2

A photovoltaic cell receives energy input primarily by

Accepted Answer

A) conduction. 
B) convection. 
C) radiation. 
D) all of the above 
A) conduction. 
B) convection. 
C) radiation. 
D) all of the above

Question 3

Boiling and freezing can occur at the same time when water is subjected to

Accepted Answer

A) decreased temperatures. 
B) decreased atmospheric pressure. 
C) increased temperatures. 
D) increased atmospheric pressure. 
A) decreased temperatures. 
B) decreased atmospheric pressure. 
C) increased temperatures. 
D) increased atmospheric pressure.

Question 4

Which would burn your skin the most?

Accepted Answer

A) 100 g of water at 100°C 
B) 100 g of steam at 100°C 
C) both equal 
A) 100 g of water at 100°C 
B) 100 g of steam at 100°C 
C) both equal

Question 5

Your bare feet feel warmer on a rug than on a tile floor because the rug

Accepted Answer

A) is usually warmer than tile. 
B) is a better insulator than tile. 
C) has more thermal energy than tile. 
D) all of the above 
E) none of the above 
A) is usually warmer than tile. 
B) is a better insulator than tile. 
C) has more thermal energy than tile. 
D) all of the above 
E) none of the above

Question 6

Water boils in the mountains at

Accepted Answer

A) a higher temperature than at sea level. 
B) a lower temperature than at sea level. 
C) the same temperature as at sea level. 
A) a higher temperature than at sea level. 
B) a lower temperature than at sea level. 
C) the same temperature as at sea level.

Question 7

Transparency of the atmosphere is lowest for radiation of

Accepted Answer

A) ultraviolet light. 
B) visible light. 
C) infrared light. 
A) ultraviolet light. 
B) visible light. 
C) infrared light.

Question 8

Evaporation is a cooling process because

Accepted Answer

A) heat is radiated during the process. 
B) of conduction and convection. 
C) the more energetic molecules escape the liquid. 
D) none of the above 
A) heat is radiated during the process. 
B) of conduction and convection. 
C) the more energetic molecules escape the liquid. 
D) none of the above

Question 9

When a solid is changed to a liquid phase,the solid

Accepted Answer

A) releases energy. 
B) absorbs energy. 
C) neither of these 
D) none of the above 
A) releases energy. 
B) absorbs energy. 
C) neither of these 
D) none of the above

Question 10

Melting and freezing are

Accepted Answer

A) changes of phase. 
B) opposite processes. 
C) both of these 
D) neither of these 
A) changes of phase. 
B) opposite processes. 
C) both of these 
D) neither of these

Question 11

A substance most commonly emits heat energy by the process of

Accepted Answer

A) conduction. 
B) convection. 
C) radiation. 
D) none of the above 
A) conduction. 
B) convection. 
C) radiation. 
D) none of the above

Question 12

In one word,account for water temperature exceeding 100°C in the power plant of a nuclear submarine.

Accepted Answer

A) conductivity 
B) evaporation 
C) condensation 
D) pressure 
E) vaporization 
A) conductivity 
B) evaporation 
C) condensation 
D) pressure 
E) vaporization

Question 13

When boiling your breakfast eggs while in the mountains,to compensate for altitude you should

Accepted Answer

A) use a hotter flame. 
B) boil the eggs for a shorter time. 
C) boil the eggs for a longer time. 
D) none of the above 
A) use a hotter flame. 
B) boil the eggs for a shorter time. 
C) boil the eggs for a longer time. 
D) none of the above

Question 14

Boiling water burns are less damaging than steam burns because boiling water

Accepted Answer

A) doesn't condense and release additional energy. 
B) has less energy per kilogram than steam. 
C) both of these 
D) none of the above 
A) doesn't condense and release additional energy. 
B) has less energy per kilogram than steam. 
C) both of these 
D) none of the above

Question 15

A good absorber of radiation is a

Accepted Answer

A) good emitter of radiation. 
B) poor emitter of radiation. 
C) good reflector. 
D) none of the above 
A) good emitter of radiation. 
B) poor emitter of radiation. 
C) good reflector. 
D) none of the above

Question 16

In practice,a good insulator

Accepted Answer

A) stops heat flow. 
B) slows heat flow. 
C) speeds negative heat flow. 
D) all of the above 
A) stops heat flow. 
B) slows heat flow. 
C) speeds negative heat flow. 
D) all of the above

Question 17

If an object radiates more energy than it absorbs,its

Accepted Answer

A) thermal energy decreases. 
B) temperature decreases. 
C) both of these 
D) none of the above 
A) thermal energy decreases. 
B) temperature decreases. 
C) both of these 
D) none of the above

Question 18

In a gaseous mixture of hydrogen and oxygen,the slower molecules on average are

Accepted Answer

A) hydrogen. 
B) oxygen. 
C) both the same 
D) not enough information 
A) hydrogen. 
B) oxygen. 
C) both the same 
D) not enough information

Question 19

When you leave your warm house for an hour or so on a cold day,to save energy you should turn the thermostat

Accepted Answer

A) down. 
B) up. 
C) off. 
D) to room temperature. 
A) down. 
B) up. 
C) off. 
D) to room temperature.

Question 20

To melt 50 g of 0°C ice requires

Accepted Answer

A) 25 calories. 
B) 50 calories. 
C) 80 calories. 
D) none of the above 
A) 25 calories. 
B) 50 calories. 
C) 80 calories. 
D) none of the above

Exam 7: Heat Transfer and Change of Phase

The process of boiling water tends to

A photovoltaic cell receives energy input primarily by

Boiling and freezing can occur at the same time when water is subjected to

Which would burn your skin the most?

Your bare feet feel warmer on a rug than on a tile floor because the rug

Water boils in the mountains at

Transparency of the atmosphere is lowest for radiation of

Evaporation is a cooling process because

When a solid is changed to a liquid phase,the solid

Melting and freezing are

A substance most commonly emits heat energy by the process of

In one word,account for water temperature exceeding 100°C in the power plant of a nuclear submarine.

When boiling your breakfast eggs while in the mountains,to compensate for altitude you should

Boiling water burns are less damaging than steam burns because boiling water

A good absorber of radiation is a

In practice,a good insulator

If an object radiates more energy than it absorbs,its

In a gaseous mixture of hydrogen and oxygen,the slower molecules on average are

When you leave your warm house for an hour or so on a cold day,to save energy you should turn the thermostat

To melt 50 g of 0°C ice requires

Patterns of Motion and Equilibrium

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

Thermal Energy and Thermodynamics

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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