Question 1

The Earth loses heat mainly by

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 2

If an object radiates more energy than it absorbs, its

Accepted Answer

A) thermal energy decreases. 
B) temperature decreases. 
C) both 
D) neither 
A) thermal energy decreases. 
B) temperature decreases. 
C) both 
D) neither

Question 3

The pupil of your eye is a net

Accepted Answer

A) absorber of radiant energy. 
B) emitter of radiant energy. 
C) neither 
A) absorber of radiant energy. 
B) emitter of radiant energy. 
C) neither

Question 4

Food in boiling water cooks slower in high-altitude locations. If you increase the temperature under the pot the food will cook

Accepted Answer

A) faster. 
B) slower. 
C) neither 
A) faster. 
B) slower. 
C) neither

Question 5

If you want to cook eggs by boiling them while in the mountains, then compared with cooking at sea level 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 6

Radiant energy emitted by our planet is

Accepted Answer

A) terrestrial energy. 
B) the result of radioactivity in Earth's interior. 
C) electromagnetic. 
D) all of the above 
A) terrestrial energy. 
B) the result of radioactivity in Earth's interior. 
C) electromagnetic. 
D) all of the above

Question 7

A can of soft drink will cool faster if placed in what part of a refrigerator?

Accepted Answer

A) the freezer compartment 
B) the main part of the refrigerator 
C) both locations should cool the can at the same rate 
A) the freezer compartment 
B) the main part of the refrigerator 
C) both locations should cool the can at the same rate

Question 8

In a gaseous mixture of hydrogen and oxygen, the higher-temperature molecules 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 9

If you were caught in freezing weather with only a candle for warmth, you would be warmer in

Accepted Answer

A) an igloo. 
B) a tent. 
C) a wooden house. 
A) an igloo. 
B) a tent. 
C) a wooden house.

Question 10

The molecules in a room-temperature glass of water jostle around at

Accepted Answer

A) a great variety of speeds. 
B) much the same speeds. 
C) constant speeds. 
A) a great variety of speeds. 
B) much the same speeds. 
C) constant speeds.

Question 11

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

Question 12

One of the main reasons people can walk barefoot on red-hot coals of wood without burning their feet has to do with

Accepted Answer

A) low temperature of the coals. 
B) low thermal conductivity of the coals. 
C) mind over matter techniques. 
A) low temperature of the coals. 
B) low thermal conductivity of the coals. 
C) mind over matter techniques.

Question 13

When evaporation occurs in a dish of water, the molecules left behind in the water

Accepted Answer

A) are less energetic. 
B) have decreased average speeds. 
C) result in lowered temperature. 
D) none of the above 
A) are less energetic. 
B) have decreased average speeds. 
C) result in lowered temperature. 
D) none of the above

Question 14

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 are able to escape the liquid. 
D) the temperature of the remaining liquid decreases. 
E) none of the above 
A) heat is radiated during the process. 
B) of conduction and convection. 
C) the more energetic molecules are able to escape the liquid. 
D) the temperature of the remaining liquid decreases. 
E) none of the above

Question 15

If a poor absorber of radiation were a good emitter, its temperature would be

Accepted Answer

A) less than its surroundings. 
B) more than its surroundings. 
C) the same as its surroundings. 
A) less than its surroundings. 
B) more than its surroundings. 
C) the same as its surroundings.

Question 16

A substance absorbs 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 17

Heating the Earth's atmosphere is caused by energy

Accepted Answer

A) production. 
B) consumption. 
C) both 
D) neither 
A) production. 
B) consumption. 
C) both 
D) neither

Question 18

A hot dog pants

Accepted Answer

A) to help evaporation occur in its mouth and bronchial tract. 
B) to bring more oxygen into its lungs. 
C) for no particular reason-some things just happen. 
D) to impress dogs of the opposite sex. 
A) to help evaporation occur in its mouth and bronchial tract. 
B) to bring more oxygen into its lungs. 
C) for no particular reason-some things just happen. 
D) to impress dogs of the opposite sex.

Question 19

The process of boiling water tends to

Accepted Answer

A) warm the water. 
B) cool the water. 
C) both warm and cool the water at the same time. 
D) have no effect on water's temperature. 
A) warm the water. 
B) cool the water. 
C) both warm and cool the water at the same time. 
D) have no effect on water's temperature.

Question 20

Boiling can be thought of as evaporation

Accepted Answer

A) beneath the surface of water. 
B) at its extreme. 
C) that cools instead of warming. 
A) beneath the surface of water. 
B) at its extreme. 
C) that cools instead of warming.

Exam 7: Heat Transfer and Change of Phase

The Earth loses heat mainly by

If an object radiates more energy than it absorbs, its

The pupil of your eye is a net

Food in boiling water cooks slower in high-altitude locations. If you increase the temperature under the pot the food will cook

If you want to cook eggs by boiling them while in the mountains, then compared with cooking at sea level you should

Radiant energy emitted by our planet is

A can of soft drink will cool faster if placed in what part of a refrigerator?

In a gaseous mixture of hydrogen and oxygen, the higher-temperature molecules are

If you were caught in freezing weather with only a candle for warmth, you would be warmer in

The molecules in a room-temperature glass of water jostle around at

To melt 50 g of 0°C ice requires

One of the main reasons people can walk barefoot on red-hot coals of wood without burning their feet has to do with

When evaporation occurs in a dish of water, the molecules left behind in the water

Evaporation is a cooling process because

If a poor absorber of radiation were a good emitter, its temperature would be

A substance absorbs heat energy by the process of

Heating the Earth's atmosphere is caused by energy

A hot dog pants

The process of boiling water tends to

Boiling can be thought of as evaporation

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 Timereading 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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