Question 1

The temperature scale where the numerical value is proportional to the average kinetic energy of the atoms or molecules is

Accepted Answer

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

Question 2

The specific heat capacity of a substance is the amount of energy required to raise 1 kg of the substance by a temperature of

Accepted Answer

A)  1°F. 
B)  10 °C. 
C)  10 °F. 
D)  1°C.

Question 3

A steam turbine is an example of a heat mover.

Accepted Answer

A) True 
 B)False

Question 4

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

Accepted Answer

The answer of A wood stove in the corner of...

Question 5

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 6

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

Accepted Answer

The answer of As the air cools at night the...

Question 7

When ice melts, its temperature increases.

Accepted Answer

A) True 
 B)False

Question 8

A bimetallic strip is formed from two materials that have different heat capacities.

Accepted Answer

A) True 
 B)False

Question 9

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 10

You can increase the temperature of a gas by compressing it.

Accepted Answer

A) True 
 B)False

Question 11

Which mechanism(s) of heat transfer will work in a vacuum?

Accepted Answer

A)  conduction 
B)  convection 
C)  radiation 
D)  none of the above

Question 12

The total kinetic and potential energies of all the atoms and molecules of a substance is its

Accepted Answer

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

Question 13

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 
The 1 kg block of ice melts into water. The amount of heat absorbed by the ice as it melts is 334,000 J.

Accepted Answer

A) True 
 B)False

Question 14

The specific heat capacity of water is about twice the specific heat capacity of ice. The amount of heat required to boil 1 kg of water is twice the amount of heat required to melt 1 kg of ice.

Accepted Answer

A) True 
 B)False

Question 15

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 16

A bimetallic strip is usable in a thermometer because of its heat capacity.

Accepted Answer

A) True 
 B)False

Question 17

A piece of chocolate melts in your mouth. 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 18

In a steam engine, steam at 140°C in a turbine does work on an external system, and the steam leaves the turbine at 100°C. The efficiency of the steam engine is 5%. The relevant physical principle is

Accepted Answer

A)  the first law of thermodynamics. 
B)  the second law of thermodynamics. 
C)  specific heat capacity. 
D)  operation of a heat pump. 
E)  none of the above.

Question 19

Three examples of a heat mover are __________, __________, and __________.

Accepted Answer

The answer of Three examples of a heat mover are...

Question 20

The warmth you feel from the Sun at the beach is an example of

Accepted Answer

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

Exam 5: Temperature and Heat

The temperature scale where the numerical value is proportional to the average kinetic energy of the atoms or molecules is

The specific heat capacity of a substance is the amount of energy required to raise 1 kg of the substance by a temperature of

A steam turbine is an example of a heat mover.

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

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

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

When ice melts, its temperature increases.

A bimetallic strip is formed from two materials that have different heat capacities.

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.

You can increase the temperature of a gas by compressing it.

Which mechanism(s) of heat transfer will work in a vacuum?

The total kinetic and potential energies of all the atoms and molecules of a substance is its

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 The 1 kg block of ice melts into water. The amount of heat absorbed by the ice as it melts is 334,000 J.

The specific heat capacity of water is about twice the specific heat capacity of ice. The amount of heat required to boil 1 kg of water is twice the amount of heat required to melt 1 kg of ice.

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.

A bimetallic strip is usable in a thermometer because of its heat capacity.

A piece of chocolate melts in your mouth. This is an example of

In a steam engine, steam at 140°C in a turbine does work on an external system, and the steam leaves the turbine at 100°C. The efficiency of the steam engine is 5%. The relevant physical principle is

Three examples of a heat mover are , , and __.

The warmth you feel from the Sun at the beach is an example of