Question 1

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

Question 2

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

Question 3

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 these 
A) Fahrenheit scale. 
B) Kelvin scale. 
C) both of these 
D) neither of these B

Question 4

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. 
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.

Question 5

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 these 
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 these

Question 6

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

Question 7

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

Question 8

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. 
A) more likely to freeze. 
B) less likely to freeze. 
C) neither more nor less likely to freeze.

Question 9

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. 
A) becomes narrower. 
B) becomes wider. 
C) retains its size.

Question 10

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

Question 11

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

Question 12

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

Question 13

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

Question 14

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

Question 15

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 same 
A) copper. 
B) aluminum. 
C) both the same

Question 16

Microscopic slush in water tends to make the water density

Accepted Answer

A) greater. 
B) less. 
C) no change 
A) greater. 
B) less. 
C) no change

Question 17

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

Question 18

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. 
A) below 4 degrees C. 
B) 4 degrees C. 
C) above 4 degrees C. 
D) uncertain.

Question 19

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

Question 20

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 these 
A) increases. 
B) decreases. 
C) neither of these

Exam 15: Temperature,heat,and Expansion

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Microscopic slush in water tends to make the water density

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

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

When an iron ring is heated,the hole becomes

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

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