Question 1

Which of the following expands most when the temperature is increased? Equal volumes of

Accepted Answer

A) iron. 
B) wood. 
C) ice water. 
D) helium. 
E) all expand the same 
A) iron. 
B) wood. 
C) ice water. 
D) helium. 
E) all expand the same

Question 2

Water at 4°C will expand when it is slightly

Accepted Answer

A) cooled. 
B) warmed. 
C) both 
D) neither 
A) cooled. 
B) warmed. 
C) both 
D) neither

Question 3

Which is the smallest unit of measurement for temperature?

Accepted Answer

A) one Celsius degree 
B) one Kelvin 
C) one Fahrenheit degree 
D) all are the same 
A) one Celsius degree 
B) one Kelvin 
C) one Fahrenheit degree 
D) all are the same

Question 4

When you touch a piece of ice with your finger, energy flows

Accepted Answer

A) from your finger to the ice. 
B) from the ice to your finger. 
C) both ways 
A) from your finger to the ice. 
B) from the ice to your finger. 
C) both ways

Question 5

Water at 4°C will sink to the bottom of a pond because

Accepted Answer

A) it will not freeze there. 
B) it benefits fish and other life forms there. 
C) like a rock, it is denser than surrounding water. 
D) of the presence of microscopic ice crystals. 
A) it will not freeze there. 
B) it benefits fish and other life forms there. 
C) like a rock, it is denser than surrounding water. 
D) of the presence of microscopic ice crystals.

Question 6

The white-hot sparks from a fireworks sparkler that strike your skin don't cause injury because

Accepted Answer

A) they have a low temperature. 
B) the energy per molecule is very low. 
C) the energy per molecule is high, but the total energy transferred is small. 
A) they have a low temperature. 
B) the energy per molecule is very low. 
C) the energy per molecule is high, but the total energy transferred is small.

Question 7

As a system becomes more disordered, entropy

Accepted Answer

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

Question 8

To say that something is twice as hot as another suggests the hotter thing has

Accepted Answer

A) twice the thermal energy. 
B) twice the absolute temperature. 
C) both 
D) none of the above 
A) twice the thermal energy. 
B) twice the absolute temperature. 
C) both 
D) none of the above

Question 9

The overflow spillage of gasoline from a car's full tank on a hot day is evidence that gasoline expands

Accepted Answer

A) more than the tank metal. 
B) about the same as the tank metal. 
C) less than the tank metal. 
D) negligible. 
A) more than the tank metal. 
B) about the same as the tank metal. 
C) less than the tank metal. 
D) negligible.

Question 10

Heat energy is measured in units of

Accepted Answer

A) degrees. 
B) joules. 
C) calories. 
D) both joules and calories. 
A) degrees. 
B) joules. 
C) calories. 
D) both joules and calories.

Question 11

When work is done on a system and no heat is added, the temperature of the system

Accepted Answer

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

Question 12

Pour a liter of 40°C water at into a liter of 20°C water and the final temperature of the two liters becomes

Accepted Answer

A) less than 30°C. 
B) at or about 30°C. 
C) more than 30°C. 
A) less than 30°C. 
B) at or about 30°C. 
C) more than 30°C.

Question 13

The fact that a thermometer "takes its own temperature" illustrates

Accepted Answer

A) thermal equilibrium. 
B) energy conservation. 
C) the difference between heat and thermal energy. 
D) molecules are constantly moving. 
A) thermal equilibrium. 
B) energy conservation. 
C) the difference between heat and thermal energy. 
D) molecules are constantly moving.

Question 14

Increasing the temperature of 50 grams of water by 1°C requires

Accepted Answer

A) 1 calorie. 
B) 50 calories. 
C) none of the above 
A) 1 calorie. 
B) 50 calories. 
C) none of the above

Question 15

Before ice can form on a lake, all the water in the lake must be cooled to

Accepted Answer

A) 0°C. 
B) 4°C. 
C) a value slightly below 0°C. 
A) 0°C. 
B) 4°C. 
C) a value slightly below 0°C.

Question 16

Absolute zero corresponds to a temperature of

Accepted Answer

A) 0 K. 
B) -273° C. 
C) both 
D) neither 
A) 0 K. 
B) -273° C. 
C) both 
D) neither

Question 17

When ice floats in water, a small part of it extends above the surface. Interestingly, the volume of ice that extends above the surface is equal to the volume of the

Accepted Answer

A) water the ice displaces. 
B) vast number of open spaces in the hexagonal ice crystals. 
C) both 
D) neither 
A) water the ice displaces. 
B) vast number of open spaces in the hexagonal ice crystals. 
C) both 
D) neither

Question 18

When you touch a hot penny in sunlight with your finger, energy flows

Accepted Answer

A) from your finger to the penny. 
B) from the penny to your finger. 
C) both ways 
A) from your finger to the penny. 
B) from the penny to your finger. 
C) both ways

Question 19

Which law of thermodynamics states that no system can reach absolute zero?

Accepted Answer

A) first law 
B) second law 
C) third law 
D) all of the above 
A) first law 
B) second law 
C) third law 
D) all of the above

Question 20

When you place a sealed can of air on a hot stove burner, the can undergoes an increase in

Accepted Answer

A) thermal energy. 
B) temperature. 
C) pressure. 
D) all of the above 
E) none of the above 
A) thermal energy. 
B) temperature. 
C) pressure. 
D) all of the above 
E) none of the above

Exam 6: Thermal Energy and Thermodynamics

Which of the following expands most when the temperature is increased? Equal volumes of

Water at 4°C will expand when it is slightly

Which is the smallest unit of measurement for temperature?

When you touch a piece of ice with your finger, energy flows

Water at 4°C will sink to the bottom of a pond because

The white-hot sparks from a fireworks sparkler that strike your skin don't cause injury because

As a system becomes more disordered, entropy

To say that something is twice as hot as another suggests the hotter thing has

The overflow spillage of gasoline from a car's full tank on a hot day is evidence that gasoline expands

Heat energy is measured in units of

When work is done on a system and no heat is added, the temperature of the system

Pour a liter of 40°C water at into a liter of 20°C water and the final temperature of the two liters becomes

The fact that a thermometer "takes its own temperature" illustrates

Increasing the temperature of 50 grams of water by 1°C requires

Before ice can form on a lake, all the water in the lake must be cooled to

Absolute zero corresponds to a temperature of

When ice floats in water, a small part of it extends above the surface. Interestingly, the volume of ice that extends above the surface is equal to the volume of the

When you touch a hot penny in sunlight with your finger, energy flows

Which law of thermodynamics states that no system can reach absolute zero?

When you place a sealed can of air on a hot stove burner, the can undergoes an increase in

Patterns of Motion and Equilibrium

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

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 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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