Question 1

As the air cools at night the relative humidity usually drops.

Accepted Answer

A) True 
 B)False

Question 2

You hold one end of a solid rod in a fire,and the other end becomes hot.This is an example of __________.

Accepted Answer

The answer of You hold one end of a solid...

Question 3

A hot pizza contains heat.

Accepted Answer

A) True 
 B)False

Question 4

A hot pizza contains __________.

Accepted Answer

The answer of A hot pizza contains __________....

Question 5

A piston compresses a gas,while at the same time heat is lost to the surroundings.The temperature of the gas rises.This is governed by the second law of thermodynamics.

Accepted Answer

A) True 
 B)False

Question 6

A material through which heat conducts slowly is called a __________.

Accepted Answer

The answer of A material through which heat conducts slowly...

Question 7

​Match each item with the correct statement below.
-the density of water vapor in the air

Accepted Answer

A)  ​bimetallic strip
B)  ​Carnot efficiency
C)  ​conduction
D)  ​convection
E)  ​entropyF) ​evaporationG) ​heatH) ​heat engineI) ​heat moverJ) humidityK) ​internal energyL) radiationM) ​saturation densityN) temperatureO) ​dew point

Question 8

​Match each item with the correct statement below.
-can be increased by doing work on a substance or by adding heat to it

Accepted Answer

A)  ​bimetallic strip
B)  ​Carnot efficiency
C)  ​conduction
D)  ​convection
E)  ​entropyF) ​evaporationG) ​heatH) ​heat engineI) ​heat moverJ) humidityK) ​internal energyL) radiationM) ​saturation densityN) temperatureO) ​dew point

Question 9

The Eiffel tower in Paris is made primarily of iron,whose coefficient of linear expansion is about 10 × 10−6/°C.On a cold day when the temperature is −10°C the Eiffel tower is 300 meters tall.Its height on a hot day when the temperature is 40°C is 300.15 m.

Accepted Answer

A) True 
 B)False

Question 10

When droplets of condensation form on the outside of a glass of ice water,it must be that in the air right next to the glass

Accepted Answer

A)  the temperature is near the dew point.
B)  the humidity is near the saturation density.
C)  the relative humidity is near 100%.
D)  all of the above

Question 11

The latent heat of vaporization of water is roughly 10 times the latent heat of fusion of water.The amount of heat required to boil away 1 kg of water is __________ the amount of heat required to melt 1 kg of ice.

Accepted Answer

A)  one tenth
B)  equal to
C)  10 times
D)  unrelated to

Question 12

A hot pizza contains

Accepted Answer

A)  heat.
B)  internal energy.
C)  temperature.
D)  work.
E)  none of the above.

Question 13

Match each item with the correct statement below.
-the maximum possible humidity

Accepted Answer

A)  bimetallic strip
B)  Carnot efficiency
C)  conduction
D)  convection
E)  entropyF) evaporationG) heatH) heat engineI) heat moverJ) humidityK) internal energyL) radiationM) saturation densityN) temperature

Question 14

In the first law of thermodynamics,the work can be

Accepted Answer

A)  only positive.
B)  only negative.
C)  neither.
D)  either positive or negative.

Question 15

The efficiency of a heat engine

Accepted Answer

A)  can never exceed the Carnot efficiency.
B)  can be improved by lowering the temperature of the cool reservoir.
C)  can be improved by raising the temperature of the hot reservoir.
D)  all of the above

Question 16

specific heat capacity of ice = 2,000 J/kg-°C
latent heat of fusion of water = 334,000 J/kg
specific heat capacity of water = 4,000 J/kg-°C
-As the ice is melting,the temperature of the ice-water mixture rises by 10°C.

Accepted Answer

A) True 
 B)False

Question 17

The temperature of a gas can be increased by

Accepted Answer

A)  compressing it.
B)  adding heat to it.
C)  doing work on it.
D)  all of the above.
E)  none of the above.

Question 18

An object transfers heat when its temperature is lowered by contact with

Accepted Answer

The answer of An object transfers heat when its temperature...

Question 19

A wood stove in the corner of a cabin causes the entire cabin to become heated.This is an example of

Accepted Answer

A)  heat conduction.
B)  heat convection.
C)  heat radiation.
D)  thermal expansion.
E)  none of the above.

Question 20

When a substance is exposed to something that has a lower temperature,

Accepted Answer

A)  work is done on it.
B)  work is done by it.
C)  heat is transferred from it.
D)  heat is transferred to it.
E)  none of the above.

Exam 5: Temperature and Heat

A hot pizza contains __________.

Correct AnswerverifiedShow Answer

The efficiency of a heat engine

Correct AnswerverifiedShow Answer

Match each item with the correct statement below. -the maximum possible humidity

Correct AnswerverifiedShow Answer

When droplets of condensation form on the outside of a glass of ice water,it must be that in the air right next to the glass

Correct AnswerverifiedShow Answer

A hot pizza contains heat.

Correct AnswerverifiedShow Answer

In the first law of thermodynamics,the work can be

Correct AnswerverifiedShow Answer

​Match each item with the correct statement below. -can be increased by doing work on a substance or by adding heat to it

Correct AnswerverifiedShow Answer

A wood stove in the corner of a cabin causes the entire cabin to become heated.This is an example of

Correct AnswerverifiedShow Answer

The latent heat of vaporization of water is roughly 10 times the latent heat of fusion of water.The amount of heat required to boil away 1 kg of water is __________ the amount of heat required to melt 1 kg of ice.

Correct AnswerverifiedShow Answer

When a substance is exposed to something that has a lower temperature,

Correct AnswerverifiedShow Answer

​Match each item with the correct statement below. -the density of water vapor in the air

Correct AnswerverifiedShow Answer

You hold one end of a solid rod in a fire,and the other end becomes hot.This is an example of __________.

Correct AnswerverifiedShow Answer

As the air cools at night the relative humidity usually drops.

Correct AnswerverifiedShow Answer

A material through which heat conducts slowly is called a __________.

Correct AnswerverifiedShow Answer

The Eiffel tower in Paris is made primarily of iron,whose coefficient of linear expansion is about 10 × 10−6/°C.On a cold day when the temperature is −10°C the Eiffel tower is 300 meters tall.Its height on a hot day when the temperature is 40°C is 300.15 m.

Correct AnswerverifiedShow Answer

A hot pizza contains

Correct AnswerverifiedShow Answer

The temperature of a gas can be increased by

Correct AnswerverifiedShow Answer

An object transfers heat when its temperature is lowered by contact with

Correct AnswerverifiedShow Answer

specific heat capacity of ice = 2,000 J/kg-°C latent heat of fusion of water = 334,000 J/kg specific heat capacity of water = 4,000 J/kg-°C -As the ice is melting,the temperature of the ice-water mixture rises by 10°C.

Correct AnswerverifiedShow Answer

A piston compresses a gas,while at the same time heat is lost to the surroundings.The temperature of the gas rises.This is governed by the second law of thermodynamics.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Match each item with the correct statement below. -can be increased by doing work on a substance or by adding heat to it

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Match each item with the correct statement below. -the density of water vapor in the air

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The Eiffel tower in Paris is made primarily of iron,whose coefficient of linear expansion is about 10 × 10−⁶/°C.On a cold day when the temperature is −10°C the Eiffel tower is 300 meters tall.Its height on a hot day when the temperature is 40°C is 300.15 m.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified