Question 1

Consider a closed,sealed can of air placed on a hot stove.The contained air undergoes an increase in

Accepted Answer

A) mass. 
B) pressure. 
C) temperature. 
D) all of these 
E) two of these 
A) mass. 
B) pressure. 
C) temperature. 
D) all of these 
E) two of these

Question 2

Which of the following expands when the temperature is lowered? Equal volumes of

Accepted Answer

A) iron. 
B) wood. 
C) helium. 
D) water at 4 degrees C. 
E) None expands when the temperature is lowered. 
A) iron. 
B) wood. 
C) helium. 
D) water at 4 degrees C. 
E) None expands when the temperature is lowered.

Question 3

Some molecules are able to absorb large amounts of energy in the form of internal vibrations and rotations.Materials composed of such molecules have

Accepted Answer

A) low specific heats. 
B) high specific heats. 
C) none of the above 
A) low specific heats. 
B) high specific heats. 
C) none of the above

Question 4

Ice has a lower density than water because ice

Accepted Answer

A) sinks. 
B) molecules are more compact in the solid state. 
C) molecules vibrate at lower rates than water molecules. 
D) is made of open-structured,hexagonal crystals. 
E) density decreases with decreasing temperature. 
A) sinks. 
B) molecules are more compact in the solid state. 
C) molecules vibrate at lower rates than water molecules. 
D) is made of open-structured,hexagonal crystals. 
E) density decreases with decreasing temperature.

Question 5

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 6

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

Accepted Answer

A) zero degrees C. 
B) 4 degrees C. 
C) minus 32 degrees C. 
D) None of the above.Ice can form at the surface regardless of the water temperature below. 
A) zero degrees C. 
B) 4 degrees C. 
C) minus 32 degrees C. 
D) None of the above.Ice can form at the surface regardless of the water temperature below.

Question 7

During a very cold winter,water pipes sometimes burst.The reason for this is

Accepted Answer

A) the ground contracts when colder,pulling pipes apart. 
B) water expands when freezing. 
C) water contracts when freezing. 
D) the thawing process releases pressure on the pipes. 
E) none of these 
A) the ground contracts when colder,pulling pipes apart. 
B) water expands when freezing. 
C) water contracts when freezing. 
D) the thawing process releases pressure on the pipes. 
E) none of these

Question 8

Heat energy travels from an object with a high

Accepted Answer

A) internal energy to an object with a lower internal energy. 
B) temperature to an object with a lower temperature. 
C) Both of these,for they say essentially say the same thing. 
D) None of the above choices are true. 
A) internal energy to an object with a lower internal energy. 
B) temperature to an object with a lower temperature. 
C) Both of these,for they say essentially say the same thing. 
D) None of the above choices are true.

Question 9

Which of the following contracts when the temperature is increased? Equal volumes of

Accepted Answer

A) iron. 
B) wood. 
C) ice water. 
D) helium. 
E) None of the above contract when heated. 
A) iron. 
B) wood. 
C) ice water. 
D) helium. 
E) None of the above contract when heated.

Question 10

Heat energy is measured in units of

Accepted Answer

A) joules. 
B) calories. 
C) Choices A and B are both true. 
D) Choices A and B are both false. 
A) joules. 
B) calories. 
C) Choices A and B are both true. 
D) Choices A and B are both false.

Question 11

Compared to a giant iceberg,a hot cup of coffee has

Accepted Answer

A) more internal energy and higher temperature. 
B) higher temperature,but less internal energy. 
C) a greater specific heat and more internal energy. 
D) none of these 
A) more internal energy and higher temperature. 
B) higher temperature,but less internal energy. 
C) a greater specific heat and more internal energy. 
D) none of these

Question 12

When water at 4 degrees C is heated it expands.When water at 4 degrees C is cooled,it

Accepted Answer

A) contracts. 
B) expands. 
C) neither contracts nor expands. 
A) contracts. 
B) expands. 
C) neither contracts nor expands.

Question 13

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

Accepted Answer

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

Question 14

The fact that desert sand is very hot in the day and very cold at night is evidence that sand has

Accepted Answer

A) a low specific heat. 
B) a high specific heat. 
C) no specific heat. 
A) a low specific heat. 
B) a high specific heat. 
C) no specific heat.

Question 15

Can a sample of water possibly have the same volume after being warmed by several Celsius degrees?

Accepted Answer

A) sometimes 
B) always 
C) never 
A) sometimes 
B) always 
C) never

Question 16

When we enlarge a photograph of an iron ring,the image of the hole becomes

Accepted Answer

A) smaller. 
B) larger. 
C) neither smaller nor larger. 
A) smaller. 
B) larger. 
C) neither smaller nor larger.

Question 17

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

Accepted Answer

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

Question 18

If you measure a plot of land with a brass tape on a cold day,the actual amount of land you have will be

Accepted Answer

A) smaller than measured. 
B) larger than measured. 
C) the same. 
A) smaller than measured. 
B) larger than measured. 
C) the same.

Question 19

Room temperature on the Kelvin scale is about

Accepted Answer

A) 100 K. 
B) 200 K. 
C) 300 K. 
D) 400 K. 
E) more than 400 K. 
A) 100 K. 
B) 200 K. 
C) 300 K. 
D) 400 K. 
E) more than 400 K.

Question 20

If you stake out a plot of land with a steel tape on a very hot day,the actual amount of land you will have will be

Accepted Answer

A) smaller than measured. 
B) larger than measured. 
C) correct. 
A) smaller than measured. 
B) larger than measured. 
C) correct.

Exam 15: Temperature,heat,and Expansion

Consider a closed,sealed can of air placed on a hot stove.The contained air undergoes an increase in

Which of the following expands when the temperature is lowered? Equal volumes of

Some molecules are able to absorb large amounts of energy in the form of internal vibrations and rotations.Materials composed of such molecules have

Ice has a lower density than water because ice

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

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

During a very cold winter,water pipes sometimes burst.The reason for this is

Heat energy travels from an object with a high

Which of the following contracts when the temperature is increased? Equal volumes of

Heat energy is measured in units of

Compared to a giant iceberg,a hot cup of coffee has

When water at 4 degrees C is heated it expands.When water at 4 degrees C is cooled,it

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

The fact that desert sand is very hot in the day and very cold at night is evidence that sand has

Can a sample of water possibly have the same volume after being warmed by several Celsius degrees?

When we enlarge a photograph of an iron ring,the image of the hole becomes

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

If you measure a plot of land with a brass tape on a cold day,the actual amount of land you have will be

Room temperature on the Kelvin scale is about

If you stake out a plot of land with a steel tape on a very hot day,the actual amount of land you will have will be

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