Question 1

The Earth's atmosphere gets most of its heat

Accepted Answer

A) near the surface of the Earth. 
B) at high altitudes closer to the sun. 
C) from the Earth's core. 
A) near the surface of the Earth. 
B) at high altitudes closer to the sun. 
C) from the Earth's core. A

Question 2

Consider a cup of tea at room temperature,24 degrees C.If it is heated until it has twice the internal energy,unlike a piece of metal,its temperature will be

Accepted Answer

A) 48 degrees C. 
B) 100 degrees C. 
C) 321 degrees C. 
D) 594 degrees C. 
E) none of these 
A) 48 degrees C. 
B) 100 degrees C. 
C) 321 degrees C. 
D) 594 degrees C. 
E) none of these B

Question 3

Entropy is closely related to the

Accepted Answer

A) 1st law of thermodynamics. 
B) 2nd law of thermodynamics. 
C) both of these 
D) neither of these 
A) 1st law of thermodynamics. 
B) 2nd law of thermodynamics. 
C) both of these 
D) neither of these B

Question 4

To wholly convert a given amount of heat energy into mechanical energy is

Accepted Answer

A) possible using a steam engine. 
B) possible using an atomic reactor. 
C) possible using a simple machine. 
D) impossible regardless of the technique used. 
A) possible using a steam engine. 
B) possible using an atomic reactor. 
C) possible using a simple machine. 
D) impossible regardless of the technique used.

Question 5

When a system does work and no heat is added to the system,its temperature

Accepted Answer

A) increases. 
B) decreases. 
C) remains unchanged. 
A) increases. 
B) decreases. 
C) remains unchanged.

Question 6

As a blob of air at a high elevation sinks to a lower elevation with no heat input or output,its temperature

Accepted Answer

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

Question 7

Sue's refrigerator is built into the wall of her kitchen,so that it exhausts heat to the outdoors rather than into the room.If Sue tries to cool her kitchen by leaving the refrigerator door open,the room temperature will

Accepted Answer

A) increase at least slightly. 
B) decrease at least slightly. 
C) remain unchanged. 
A) increase at least slightly. 
B) decrease at least slightly. 
C) remain unchanged.

Question 8

The greater the difference in temperature between the input reservoir and the output reservoir for a heat engine,the

Accepted Answer

A) greater the efficiency. 
B) less the efficiency. 
C) Neither - efficiency of a heat engine doesn't depend on temperature difference. 
A) greater the efficiency. 
B) less the efficiency. 
C) Neither - efficiency of a heat engine doesn't depend on temperature difference.

Question 9

Adiabatic processes occur

Accepted Answer

A) only in the atmosphere. 
B) only in the oceans 
C) only in the Earth's mantle. 
D) in both the atmosphere and the oceans 
E) in the atmosphere,oceans and the Earth's mantle. 
A) only in the atmosphere. 
B) only in the oceans 
C) only in the Earth's mantle. 
D) in both the atmosphere and the oceans 
E) in the atmosphere,oceans and the Earth's mantle.

Question 10

Consider a piece of metal that is at 5 degrees C.If it is heated until it has twice the internal energy,its temperature will be

Accepted Answer

A) 10 degrees C. 
B) 273 degrees C. 
C) 278 degrees C. 
D) 283 degrees C. 
E) 556 degrees C. 
A) 10 degrees C. 
B) 273 degrees C. 
C) 278 degrees C. 
D) 283 degrees C. 
E) 556 degrees C.

Question 11

During an adiabatic compression of an ideal gas

Accepted Answer

A) the internal energy of the gas remains constant. 
B) the temperature of the gas does not change. 
C) no heat is supplied to or removed from the gas. 
D) no work is done on the gas. 
E) None of the above choices are true. 
A) the internal energy of the gas remains constant. 
B) the temperature of the gas does not change. 
C) no heat is supplied to or removed from the gas. 
D) no work is done on the gas. 
E) None of the above choices are true.

Question 12

To totally convert a given amount of mechanical energy into heat is

Accepted Answer

A) possible. 
B) impossible. 
C) impossible to answer without additional information 
A) possible. 
B) impossible. 
C) impossible to answer without additional information

Question 13

A piece of iron and a cup of water both have the same temperature.If they are heated so the internal energy of each doubles

Accepted Answer

A) the water will have the higher temperature. 
B) the iron will have the higher temperature. 
C) both will have the same temperature. 
D) not enough information given to say 
A) the water will have the higher temperature. 
B) the iron will have the higher temperature. 
C) both will have the same temperature. 
D) not enough information given to say

Question 14

Chinook winds tend to

Accepted Answer

A) warm an environment. 
B) cool an environment. 
C) cool deserts at night. 
D) warm deserts at sunrise. 
A) warm an environment. 
B) cool an environment. 
C) cool deserts at night. 
D) warm deserts at sunrise.

Question 15

Systems that are left alone,tend to move toward a state of

Accepted Answer

A) less entropy. 
B) more entropy. 
C) no entropy. 
A) less entropy. 
B) more entropy. 
C) no entropy.

Question 16

Suppose the temperature of the input reservoir in a heat engine doesn't change.As the sink temperature is lowered,the efficiency of the engine

Accepted Answer

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

Question 17

Blow on your hand with your open mouth and you feel the warmth of your breath.Pucker your lips so your breath expands as you blow and your breath is

Accepted Answer

A) warmer still. 
B) cooler. 
C) neither warmer nor cooler. 
A) warmer still. 
B) cooler. 
C) neither warmer nor cooler.

Question 18

Entropy measures

Accepted Answer

A) temperature at constant pressure. 
B) temperature at constant volume. 
C) temperature as pressure increases. 
D) temperature as volume increases. 
E) messiness. 
A) temperature at constant pressure. 
B) temperature at constant volume. 
C) temperature as pressure increases. 
D) temperature as volume increases. 
E) messiness.

Question 19

A temperature inversion occurs when the upper layers of air are

Accepted Answer

A) warmer than the lower regions of air. 
B) cooler than the lower regions of air. 
C) at the same temperature as lower regions of air. 
A) warmer than the lower regions of air. 
B) cooler than the lower regions of air. 
C) at the same temperature as lower regions of air.

Question 20

If you run a refrigerator in a closed room with the refrigerator door open,the room temperature will

Accepted Answer

A) increase. 
B) decrease. 
C) remain unchanged. 
A) increase. 
B) decrease. 
C) remain unchanged.

Exam 18: Thermodynamics

The Earth's atmosphere gets most of its heat

Consider a cup of tea at room temperature,24 degrees C.If it is heated until it has twice the internal energy,unlike a piece of metal,its temperature will be

Entropy is closely related to the

To wholly convert a given amount of heat energy into mechanical energy is

When a system does work and no heat is added to the system,its temperature

As a blob of air at a high elevation sinks to a lower elevation with no heat input or output,its temperature

Sue's refrigerator is built into the wall of her kitchen,so that it exhausts heat to the outdoors rather than into the room.If Sue tries to cool her kitchen by leaving the refrigerator door open,the room temperature will

The greater the difference in temperature between the input reservoir and the output reservoir for a heat engine,the

Adiabatic processes occur

Consider a piece of metal that is at 5 degrees C.If it is heated until it has twice the internal energy,its temperature will be

During an adiabatic compression of an ideal gas

To totally convert a given amount of mechanical energy into heat is

A piece of iron and a cup of water both have the same temperature.If they are heated so the internal energy of each doubles

Chinook winds tend to

Systems that are left alone,tend to move toward a state of

Suppose the temperature of the input reservoir in a heat engine doesn't change.As the sink temperature is lowered,the efficiency of the engine

Blow on your hand with your open mouth and you feel the warmth of your breath.Pucker your lips so your breath expands as you blow and your breath is

Entropy measures

A temperature inversion occurs when the upper layers of air are

If you run a refrigerator in a closed room with the refrigerator door open,the room temperature will

About Science

Newtons First Law of Motion: Inertia

Linear Motion

Newtons Second Law of Motion: Force and Acceleration

Newtons Third Law of Motion: Action and Reaction

Momentum

Energy

Rotational Motion

Gravity

Projectile and Satellite Motion

Atomic Nature of Matter

Solids

Liquids

Gases and Plasmas

Temperature,heat,and Expansion

Heat Transfer

Change of Phase

Vibrations and Waves

Sound

Musical Sounds

Electrostatics

Electric Current

Magnetism

Electromagnetic Induction

Properties of Light

Color

Reflection and Refraction

Light Waves

Light Emission

Light Quanta

The Atom and the Quantum

Atomic Nucleus and Radioactivity

Nuclear Fission and Fusion

Special Theory of Relativity

General Theory of Relativity

Filters