Question 1

When a bimetallic bar made of copper and iron strips is heated,the bar bends toward the iron strip.The reason for this is

Accepted Answer

A)  iron gets hotter before copper.
B)  copper gets hotter before iron.
C)  copper expands more than iron.
D)  iron expands more than copper.
E)  none of theseF) C) and D)
G) A) and C)

Question 2

If the specific heat of water were lower than it is,ponds in the cold of winter would be

Accepted Answer

A)  more likely to freeze.
B)  less likely to freeze.
C)  neither more nor less likely to freeze.D) A) and B)
E) None of the above

Question 3

Consider a sample of water at 0 degrees C.If the temperature is slightly increased,the volume of the water

Accepted Answer

A)  increases.
B)  decreases.
C)  remains the same.D) A) and C)
E) All of the above

Question 4

Which of the following contracts most when the temperature is decreased? Equal volumes of

Accepted Answer

A)  iron.
B)  wood.
C)  water.
D)  helium.
E)  All contract the same.F) C) and D)
G) B) and E)

Question 5

The moderate temperatures of islands throughout the world has much to do with water's

Accepted Answer

A)  poor conductivity.
B)  vast supply of internal energy.
C)  high specific heat.
D)  high evaporation rate.
E)  absorption of solar energy.F) B) and C)
G) A) and E)

Question 6

Microscopic slush in water tends to make the water density

Accepted Answer

A)  greater.
B)  less.
C)  no changeD) B) and C)
E) A) and B)

Question 7

When ice floats in water,a small part of it extends above the surface.Interestingly enough,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 of these
D)  neither of theseE) A) and D)
F) A) and C)

Question 8

On a very hot day the pendulum on a clock swings to and fro

Accepted Answer

A)  more frequently.
B)  less frequently.
C)  at the same rate.D) A) and B)
E) A) and C)

Question 9

Place a kilogram block of iron at 40 degrees C into a kilogram 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.D) All of the above
E) B) and C) A

Question 10

Consider a sample of ice at 0 degrees C.If the temperature is decreased,the volume of the ice

Accepted Answer

A)  increases.
B)  decreases.
C)  stays the same.D) None of the above
E) A) and B) B

Question 11

If glass expanded more than mercury,then the column of mercury in a mercury thermometer would rise when the temperature

Accepted Answer

A)  increases.
B)  decreases.
C)  neither of theseD) None of the above
E) All of the above

Question 12

Which of the following normally warms up fastest when heat is applied?

Accepted Answer

A)  water
B)  iron
C)  glass
D)  wood
E)  All of the above choices are equally true.F) C) and D)
G) A) and D)

Question 13

When an iron ring is heated,the hole becomes

Accepted Answer

A)  smaller.
B)  larger.
C)  neither smaller nor larger.
D)  either smaller or larger,depending on the ring thickness.E) B) and C)
F) A) and B)

Question 14

Aluminum has a specific heat capacity more than twice that of copper.Place equal masses of aluminum and copper wire in a flame and the one to undergo the fastest increase in temperature will be

Accepted Answer

A)  copper.
B)  aluminum.
C)  both the sameD) A) and B)
E) A) and C)

Question 15

As a piece of metal with a hole in it cools,the diameter of the hole

Accepted Answer

A)  increases.
B)  decreases.
C)  remains the same.D) None of the above
E) All of the above

Question 16

The temperature at the bottom of Lake Tahoe,high in the Sierra Nevada Mountains in California,at this moment is

Accepted Answer

A)  below 4 degrees C.
B)  4 degrees C.
C)  above 4 degrees C.
D)  uncertain.E) All of the above
F) C) and D)

Question 17

A temperature difference of 10 degrees Celsius is also equal to a temperature difference of 10 on the

Accepted Answer

A)  Fahrenheit scale.
B)  Kelvin scale.
C)  both of these
D)  neither of theseE) A) and D)
F) All of the above B

Question 18

When you touch a cold 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)  actually,both ways.D) A) and B)
E) A) and C)

Question 19

The white-hot sparks that strike your skin from a 4th-of-July-type sparkler don't harm you 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 little energy is transferred because of the few molecules in the spark.D) A) and B)
E) A) and C)

Question 20

Use the following figure to answer the question: 
-Consider a metal ring with a gap cut in it.When the ring is heated,the gap

Accepted Answer

A)  becomes narrower.
B)  becomes wider.
C)  retains its size.D) B) and C)
E) A) and C)

Exam 15: Temperature,heat,and Expansion

When a bimetallic bar made of copper and iron strips is heated,the bar bends toward the iron strip.The reason for this is

Correct AnswerverifiedShow Answer

If the specific heat of water were lower than it is,ponds in the cold of winter would be

Correct AnswerverifiedShow Answer

Consider a sample of water at 0 degrees C.If the temperature is slightly increased,the volume of the water

Correct AnswerverifiedShow Answer

Which of the following contracts most when the temperature is decreased? Equal volumes of

Correct AnswerverifiedShow Answer

The moderate temperatures of islands throughout the world has much to do with water's

Correct AnswerverifiedShow Answer

Microscopic slush in water tends to make the water density

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

On a very hot day the pendulum on a clock swings to and fro

Correct AnswerverifiedShow Answer

Place a kilogram block of iron at 40 degrees C into a kilogram of water at 20 degrees C and the final temperature of the two becomes

Correct AnswerverifiedA

Consider a sample of ice at 0 degrees C.If the temperature is decreased,the volume of the ice

Correct AnswerverifiedB

If glass expanded more than mercury,then the column of mercury in a mercury thermometer would rise when the temperature

Correct AnswerverifiedShow Answer

Which of the following normally warms up fastest when heat is applied?

Correct AnswerverifiedShow Answer

When an iron ring is heated,the hole becomes

Correct AnswerverifiedShow Answer

Aluminum has a specific heat capacity more than twice that of copper.Place equal masses of aluminum and copper wire in a flame and the one to undergo the fastest increase in temperature will be

Correct AnswerverifiedShow Answer

As a piece of metal with a hole in it cools,the diameter of the hole

Correct AnswerverifiedShow Answer

The temperature at the bottom of Lake Tahoe,high in the Sierra Nevada Mountains in California,at this moment is

Correct AnswerverifiedShow Answer

A temperature difference of 10 degrees Celsius is also equal to a temperature difference of 10 on the

Correct AnswerverifiedB

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

Correct AnswerverifiedShow Answer

The white-hot sparks that strike your skin from a 4th-of-July-type sparkler don't harm you because

Correct AnswerverifiedShow Answer

Use the following figure to answer the question: -Consider a metal ring with a gap cut in it.When the ring is heated,the gap

Correct AnswerverifiedShow Answer

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A

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B

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B

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