Question 1

A scuba tank of volume 40 L is filled with 200 moles of compressed air at a pressure of 100 atm. What is the value of an2/V2 due to O2?

Accepted Answer

A)  1.52 atm 
B)  34.6 atm 
C)  21.6 atm 
D)  3.23 atm 
E)  10.4 atm 
A)  1.52 atm 
B)  34.6 atm 
C)  21.6 atm 
D)  3.23 atm 
E)  10.4 atm

Question 2

Mountaineers say that you cannot hardboil an egg on the top of Mount Rainier. This is true because

Accepted Answer

A)  the air is too cold to boil water. 
B)  the air pressure is too low for stoves to burn. 
C)  boiling water is not hot enough to hardboil the egg. 
D)  the oxygen content of the air is too low. 
E)  eggs always break in their backpacks. 
A)  the air is too cold to boil water. 
B)  the air pressure is too low for stoves to burn. 
C)  boiling water is not hot enough to hardboil the egg. 
D)  the oxygen content of the air is too low. 
E)  eggs always break in their backpacks.

Question 3

Which of the following statements about electromagnetic radiation is NOT true?

Accepted Answer

A)  Electromagnetic radiation occurs for all objects at all temperatures. 
B)  Electromagnetic radiation can travel in vacuum. 
C)  Electromagnetic radiation can travel through glass. 
D)  A medium is needed for electromagnetic radiation. 
E)  Electromagnetic radiation transfers energy. 
A)  Electromagnetic radiation occurs for all objects at all temperatures. 
B)  Electromagnetic radiation can travel in vacuum. 
C)  Electromagnetic radiation can travel through glass. 
D)  A medium is needed for electromagnetic radiation. 
E)  Electromagnetic radiation transfers energy.

Question 4

In operation an aluminum flywheel within an engine gearbox increases its temperature by 40S1U1P1$\circ$S1S1P0C. Assuming the flywheel to be a uniform circular disk, calculate the percentage change in the moment of inertia of the flywheel.
(Coefficient of linear expansion for Al = 24 $\times$ 10-6/K.)

Accepted Answer

A)  0.002% 
B)  0.2% 
C)  0.1% 
D)  0.001% 
E)  1.0% 
A)  0.002% 
B)  0.2% 
C)  0.1% 
D)  0.001% 
E)  1.0%

Question 5

A common trick to open the lid of a jar that is stuck is to put the lid under hot running water. Suppose the diameter of the lid of a jar of strawberry jam is 6 cm, by how much does the circumference change if the temperature is increased by 30S1U1P1$\circ$S1S1P0C? Assume the lid is made of steel.

Accepted Answer

A)  2.0$\times$ 10 -3 cm 
B)  3.1$\times$ 10 -3 cm 
C)  4.1$\times$ 10 -3 cm 
D)  6.2$\times$ 10 -3 cm 
E)  5.2$\times$ 10 -3 cm 
A)  2.0$\times$ 10 -3 cm 
B)  3.1$\times$ 10 -3 cm 
C)  4.1$\times$ 10 -3 cm 
D)  6.2$\times$ 10 -3 cm 
E)  5.2$\times$ 10 -3 cm

Question 6

During the evening the partial pressure of water vapor in the air remains constant. As the temperature decreases, the relative humidity

Accepted Answer

A)  stays the same. 
B)  increases. 
C)  decreases. 
D)  increases or decreases depending on the temperature. 
E)  More information is needed to answer this question. 
A)  stays the same. 
B)  increases. 
C)  decreases. 
D)  increases or decreases depending on the temperature. 
E)  More information is needed to answer this question.

Question 7

If the absolute temperature of the filament of a lamp were doubled, the energy radiated per second by the filament would

Accepted Answer

A)  remain the same. 
B)  increase by a factor of 2. 
C)  increase by a factor of 4. 
D)  increase by a factor of 8. 
E)  increase by a factor of 16. 
A)  remain the same. 
B)  increase by a factor of 2. 
C)  increase by a factor of 4. 
D)  increase by a factor of 8. 
E)  increase by a factor of 16.

Question 8

The graph shows the volume occupied by 1 g of water as a function of temperature. The graph shows that

Accepted Answer

A)  for temperatures greater than 4ºC, the volume decreases with temperature. 
B)  the volume of the water is a minimum at 4ºC. 
C)  for temperatures less than 4ºC, the volume increases as the temperature decreases. 
D)  for temperatures greater than 4ºC, water becomes denser as it cools. 
E)  All of these statements are true. 
A)  for temperatures greater than 4ºC, the volume decreases with temperature. 
B)  the volume of the water is a minimum at 4ºC. 
C)  for temperatures less than 4ºC, the volume increases as the temperature decreases. 
D)  for temperatures greater than 4ºC, water becomes denser as it cools. 
E)  All of these statements are true.

Question 9

The temperature gradient in a wall is 80º C/cm, and the thermal conductivity of this wall is 4.0 $\times$ 10-3 cal/s · cm · Cº. The amount of heat conducted per minute per square centimeter through this wall is approximately

Accepted Answer

A)  19 cal 
B)  27 cal 
C)  35 cal 
D)  42 cal 
E)  0.42 kcal 
A)  19 cal 
B)  27 cal 
C)  35 cal 
D)  42 cal 
E)  0.42 kcal

Question 10

The main process by which heat is transferred to your home when it is heated by solar energy is

Accepted Answer

A)  conduction. 
B)  convection. 
C)  radiation. 
D)  latent heat transfer. 
E)  insulation. 
A)  conduction. 
B)  convection. 
C)  radiation. 
D)  latent heat transfer. 
E)  insulation.

Question 11

If a piece of iron is exposed to the sun, its temperature rises until

Accepted Answer

A)  it is hot enough to reflect all the energy that strikes it. 
B)  the heat absorbed exceeds its thermal capacity. 
C)  the heat absorbed equals its thermal capacity. 
D)  it loses and gains heat at the same rate. 
E)  its temperature equals the temperature of its surroundings. 
A)  it is hot enough to reflect all the energy that strikes it. 
B)  the heat absorbed exceeds its thermal capacity. 
C)  the heat absorbed equals its thermal capacity. 
D)  it loses and gains heat at the same rate. 
E)  its temperature equals the temperature of its surroundings.

Question 12

A glass rod that is 1.0 m long at 0ºC increases its length by 0.68 mm when heated to 80ºC. The coefficient of linear expansion of this glass is approximately

Accepted Answer

A)  8.5 $\times$ 10-6/Cº 
B)  6.8 $\times$ 10-4/Cº 
C)  0.013/Cº 
D)  1.0/Cº 
E)  80/Cº 
A)  8.5 $\times$ 10-6/Cº 
B)  6.8 $\times$ 10-4/Cº 
C)  0.013/Cº 
D)  1.0/Cº 
E)  80/Cº

Question 13

The length of an object varies with temperature according to
L = 6 + 2T + 5T2
The coefficient of linear expansion of this object is

Accepted Answer

A)  2 + 10T 
B)  2/L 
C)  10T/L 
D)  T/L 
E)  (2 + 10T)/L 
A)  2 + 10T 
B)  2/L 
C)  10T/L 
D)  T/L 
E)  (2 + 10T)/L

Question 14

Earth receives approximately 1.7 $\times$ 1017 J of energy from the sun each second through a process called

Accepted Answer

A)  conduction. 
B)  convection. 
C)  radiation. 
D)  sublimation. 
E)  evaporation. 
A)  conduction. 
B)  convection. 
C)  radiation. 
D)  sublimation. 
E)  evaporation.

A scuba tank of volume 40 L is filled with 200 moles of compressed air at a pressure of 100 atm. What is the value of an²/V² due to O₂?

Mountaineers say that you cannot hardboil an egg on the top of Mount Rainier. This is true because

Which of the following statements about electromagnetic radiation is NOT true?

In operation an aluminum flywheel within an engine gearbox increases its temperature by 40^$\circ$C. Assuming the flywheel to be a uniform circular disk, calculate the percentage change in the moment of inertia of the flywheel. (Coefficient of linear expansion for Al = 24 $\times$ 10^-6/K.)

A common trick to open the lid of a jar that is stuck is to put the lid under hot running water. Suppose the diameter of the lid of a jar of strawberry jam is 6 cm, by how much does the circumference change if the temperature is increased by 30^$\circ$C? Assume the lid is made of steel.

During the evening the partial pressure of water vapor in the air remains constant. As the temperature decreases, the relative humidity

If the absolute temperature of the filament of a lamp were doubled, the energy radiated per second by the filament would

The graph shows the volume occupied by 1 g of water as a function of temperature. The graph shows that

The temperature gradient in a wall is 80º C/cm, and the thermal conductivity of this wall is 4.0 $\times$ 10^-3 cal/s · cm · Cº. The amount of heat conducted per minute per square centimeter through this wall is approximately

The main process by which heat is transferred to your home when it is heated by solar energy is

If a piece of iron is exposed to the sun, its temperature rises until

A glass rod that is 1.0 m long at 0ºC increases its length by 0.68 mm when heated to 80ºC. The coefficient of linear expansion of this glass is approximately

The length of an object varies with temperature according to L = 6 + 2T + 5T² The coefficient of linear expansion of this object is

Earth receives approximately 1.7 $\times$ 10¹⁷ J of energy from the sun each second through a process called

Systems of Measurement

Motion in One Dimension

Motion in Two and Three Dimensions

Newtons Laws

Applications of Newtons Laws

Work and Energy

Conservation of Energy

Systems of Particles and Conservation of Linear Momentum

Rotation

Conservation of Angular Momentum

Gravity

Static Equilibrium and Elasticity

Fluids

Oscillations

Wave Motion

Superposition and Standing Waves

Temperature and the Kinetic Theory of Gases

Heat and the First Law of Thermodynamics

The Second Law of Thermodynamics

Filters

Exam 20: Thermal Properties and Processes

A scuba tank of volume 40 L is filled with 200 moles of compressed air at a pressure of 100 atm. What is the value of an2/V2 due to O2?

Mountaineers say that you cannot hardboil an egg on the top of Mount Rainier. This is true because

Which of the following statements about electromagnetic radiation is NOT true?

In operation an aluminum flywheel within an engine gearbox increases its temperature by 40 ∘\circ∘ C. Assuming the flywheel to be a uniform circular disk, calculate the percentage change in the moment of inertia of the flywheel. (Coefficient of linear expansion for Al = 24 ×\times× 10-6/K.)

A common trick to open the lid of a jar that is stuck is to put the lid under hot running water. Suppose the diameter of the lid of a jar of strawberry jam is 6 cm, by how much does the circumference change if the temperature is increased by 30 ∘\circ∘ C? Assume the lid is made of steel.

During the evening the partial pressure of water vapor in the air remains constant. As the temperature decreases, the relative humidity

If the absolute temperature of the filament of a lamp were doubled, the energy radiated per second by the filament would

The graph shows the volume occupied by 1 g of water as a function of temperature. The graph shows that

The temperature gradient in a wall is 80º C/cm, and the thermal conductivity of this wall is 4.0 ×\times× 10-3 cal/s · cm · Cº. The amount of heat conducted per minute per square centimeter through this wall is approximately

The main process by which heat is transferred to your home when it is heated by solar energy is

If a piece of iron is exposed to the sun, its temperature rises until

A glass rod that is 1.0 m long at 0ºC increases its length by 0.68 mm when heated to 80ºC. The coefficient of linear expansion of this glass is approximately

The length of an object varies with temperature according to L = 6 + 2T + 5T2 The coefficient of linear expansion of this object is

Earth receives approximately 1.7 ×\times× 1017 J of energy from the sun each second through a process called

Systems of Measurement

Motion in One Dimension

Motion in Two and Three Dimensions

Newtons Laws

Applications of Newtons Laws

Work and Energy

Conservation of Energy

Systems of Particles and Conservation of Linear Momentum

Rotation

Conservation of Angular Momentum

Gravity

Static Equilibrium and Elasticity

Fluids

Oscillations

Wave Motion

Superposition and Standing Waves

Temperature and the Kinetic Theory of Gases

Heat and the First Law of Thermodynamics

The Second Law of Thermodynamics

Filters

A scuba tank of volume 40 L is filled with 200 moles of compressed air at a pressure of 100 atm. What is the value of an²/V² due to O₂?

In operation an aluminum flywheel within an engine gearbox increases its temperature by 40^$\circ$C. Assuming the flywheel to be a uniform circular disk, calculate the percentage change in the moment of inertia of the flywheel. (Coefficient of linear expansion for Al = 24 $\times$ 10^-6/K.)

A common trick to open the lid of a jar that is stuck is to put the lid under hot running water. Suppose the diameter of the lid of a jar of strawberry jam is 6 cm, by how much does the circumference change if the temperature is increased by 30^$\circ$C? Assume the lid is made of steel.

The temperature gradient in a wall is 80º C/cm, and the thermal conductivity of this wall is 4.0 $\times$ 10^-3 cal/s · cm · Cº. The amount of heat conducted per minute per square centimeter through this wall is approximately

The length of an object varies with temperature according to L = 6 + 2T + 5T² The coefficient of linear expansion of this object is

Earth receives approximately 1.7 $\times$ 10¹⁷ J of energy from the sun each second through a process called