Question 1

When you touch a hot potato with your finger, energy flows

Accepted Answer

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

Question 2

The quantity of heat that a substance can transfer relates to its

Accepted Answer

A) mass 
B) specific heat capacity 
C) change in its temperature. 
D) all of the above 
A) mass 
B) specific heat capacity 
C) change in its temperature. 
D) all of the above

Question 3

Which of these is correct?

Accepted Answer

A) a piece of solid iron floats in molten iron. 
B) a piece of solid aluminum floats in molten aluminum. 
C) a piece of ice floats in water. 
D) all the above 
E) none of the above 
A) a piece of solid iron floats in molten iron. 
B) a piece of solid aluminum floats in molten aluminum. 
C) a piece of ice floats in water. 
D) all the above 
E) none of the above

Question 4

If the specific heat capacity of water were lower than it is, a watermelon in a picnic cooler would cool in a

Accepted Answer

A) shorter time. 
B) longer time. 
C) the same time anyway. 
A) shorter time. 
B) longer time. 
C) the same time anyway.

Question 5

When ice crystals collapse at the surface of ice, the result is a

Accepted Answer

A) thin film of water. 
B) slippery surface. 
C) both of these. 
D) none of the above 
A) thin film of water. 
B) slippery surface. 
C) both of these. 
D) none of the above

Question 6

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 7

Ice crystals in nearly frozen liquid water make up a

Accepted Answer

A) microscopic slush. 
B) region of lower density. 
C) both of these 
D) neither of these 
A) microscopic slush. 
B) region of lower density. 
C) both of these 
D) neither of these

Question 8

White-hot sparks from a 4th-of-July-type sparkler that strike your skin have relatively

Accepted Answer

A) high temperatures. 
B) few molecules per spark. 
C) low transfer of energy. 
D) all of the above 
E) none of the above 
A) high temperatures. 
B) few molecules per spark. 
C) low transfer of energy. 
D) all of the above 
E) none of the above

Question 9

Which temperature scale has the smallest sized degrees?

Accepted Answer

A) Fahrenheit 
B) Celsius 
C) Kelvin 
D) none of the above 
A) Fahrenheit 
B) Celsius 
C) Kelvin 
D) none of the above

Question 10

The fact that gasoline overflows a full tank on a hot day is evidence that

Accepted Answer

A) gasoline expands more with increasing temperature than its tank. 
B) the tank contracts while gasoline expands with temperature. 
C) both of these 
D) neither of these 
A) gasoline expands more with increasing temperature than its tank. 
B) the tank contracts while gasoline expands with temperature. 
C) both of these 
D) neither of these

Question 11

Heat energy is measured in units of

Accepted Answer

A) joules. 
B) calories. 
C) both of these 
D) neither of these 
A) joules. 
B) calories. 
C) both of these 
D) neither of these

Question 12

Temperature is most closely related to molecular

Accepted Answer

A) kinetic energy. 
B) potential energy. 
C) electrical energy. 
D) mechanical energy in general. 
A) kinetic energy. 
B) potential energy. 
C) electrical energy. 
D) mechanical energy in general.

Question 13

A body of water will be deeper when its

Accepted Answer

A) temperature rises. 
B) temperature drops. 
C) neither of these 
A) temperature rises. 
B) temperature drops. 
C) neither of these

Question 14

Microscopic slush in ice water tends to make water density

Accepted Answer

A) lower. 
B) higher. 
C) sustain at one value. 
A) lower. 
B) higher. 
C) sustain at one value.

Question 15

Which of the following expands more 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 16

Due to the presence of ice crystals in nearly frozen liquid water, the density of water is

Accepted Answer

A) lower. 
B) unaffected. 
C) higher. 
A) lower. 
B) unaffected. 
C) higher.

Question 17

Ice has a lower density than water because ice

Accepted Answer

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

Question 18

If you measure the width of an outdoor barn with a steel tape on a very cold day, your measured width will be

Accepted Answer

A) a bit short. 
B) a bit long. 
C) the same as on an average-temperature day. 
A) a bit short. 
B) a bit long. 
C) the same as on an average-temperature day.

Question 19

Ice tends to form first at the

Accepted Answer

A) surface of bodies of water. 
B) bottom of bodies of water. 
C) either depending on water depth. 
A) surface of bodies of water. 
B) bottom of bodies of water. 
C) either depending on water depth.

Exam 15: Temperature, Heat, and Expansion

When you touch a hot potato with your finger, energy flows

The quantity of heat that a substance can transfer relates to its

Which of these is correct?

If the specific heat capacity of water were lower than it is, a watermelon in a picnic cooler would cool in a

When ice crystals collapse at the surface of ice, the result is a

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

Ice crystals in nearly frozen liquid water make up a

White-hot sparks from a 4th-of-July-type sparkler that strike your skin have relatively

Which temperature scale has the smallest sized degrees?

The fact that gasoline overflows a full tank on a hot day is evidence that

Heat energy is measured in units of

Temperature is most closely related to molecular

A body of water will be deeper when its

Microscopic slush in ice water tends to make water density

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

Due to the presence of ice crystals in nearly frozen liquid water, the density of water is

Ice has a lower density than water because ice

If you measure the width of an outdoor barn with a steel tape on a very cold day, your measured width will be

Ice tends to form first at the

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