Question 1

Cold water will warm to room temperature faster in a

Accepted Answer

A) black pot. 
B) silver pot. 
C) depends on size,not color 
A) black pot. 
B) silver pot. 
C) depends on size,not color

Question 2

If an object absorbs more energy than it emits,its

Accepted Answer

A) thermal energy decreases. 
B) temperature decreases. 
C) both of these 
D) none of the above 
A) thermal energy decreases. 
B) temperature decreases. 
C) both of these 
D) none of the above

Question 3

Warm air rises because faster moving molecules tend to move to regions of less

Accepted Answer

A) density. 
B) pressure. 
C) both of these 
D) none of the above 
A) density. 
B) pressure. 
C) both of these 
D) none of the above

Question 4

The gush of steam that issues from the escape valve of a pressure cooker is relatively cool

Accepted Answer

A) close to the opening. 
B) above the opening where vapor is visible. 
C) both of these 
D) none of the above 
A) close to the opening. 
B) above the opening where vapor is visible. 
C) both of these 
D) none of the above

Question 5

When steam condenses to water,energy is

Accepted Answer

A) absorbed. 
B) released. 
C) conserved as the phase change occurs. 
D) transformed to a different form. 
A) absorbed. 
B) released. 
C) conserved as the phase change occurs. 
D) transformed to a different form.

Question 6

Explain why white clothing keeps us cool,whereas black clothing warms us.Which is the better reflector? Which is the better absorber?

Accepted Answer

White clothing reflects all colors of li

Question 7

Water can change phase to become ice by

Accepted Answer

A) extraction of energy. 
B) lowering the surrounding air pressure. 
C) both of these 
D) neither of these 
A) extraction of energy. 
B) lowering the surrounding air pressure. 
C) both of these 
D) neither of these

Question 8

The temperature at which a liquid freezes is

Accepted Answer

A) affected by foreign ions. 
B) the same temperature at which its solid form melts. 
C) both of these 
D) neither of these 
A) affected by foreign ions. 
B) the same temperature at which its solid form melts. 
C) both of these 
D) neither of these

Question 9

Blow on your hand 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) still warm. 
B) cool. 
C) neither of these 
A) still warm. 
B) cool. 
C) neither of these

Question 10

As ice is changed to water,energy is

Accepted Answer

A) given to the ice. 
B) taken from the ice. 
C) neither of these 
A) given to the ice. 
B) taken from the ice. 
C) neither of these

Question 11

If molecules in a sample of gas moved so they completely missed each other,with no other effects,the gas temperature would

Accepted Answer

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

Question 12

When bringing water to a boil in the mountains,the time needed to reach the boiling point is

Accepted Answer

A) less than at sea level. 
B) more than at sea level. 
C) the same as at sea level. 
A) less than at sea level. 
B) more than at sea level. 
C) the same as at sea level.

Question 13

Why does a good emitter of heat radiation appear black at room temperature?

Accepted Answer

A good absorber of radiation is,by desig

Question 14

In a muggy region,the extra warmth you often feel is mainly due to

Accepted Answer

A) evaporation. 
B) condensation. 
C) sublimation. 
D) none of the above 
A) evaporation. 
B) condensation. 
C) sublimation. 
D) none of the above

Question 15

Peak frequency as noted on a radiation curve is directly proportional to the

Accepted Answer

A) frequency of waves emitted. 
B) wavelength of waves emitted. 
C) temperature of emitted radiation. 
D) temperature of the emitter. 
E) none of the above 
A) frequency of waves emitted. 
B) wavelength of waves emitted. 
C) temperature of emitted radiation. 
D) temperature of the emitter. 
E) none of the above

Question 16

The toy dunking bird of Figure 7.28 operates by way of

Accepted Answer

A) evaporation. 
B) condensation. 
C) both of these 
D) none of the above 
A) evaporation. 
B) condensation. 
C) both of these 
D) none of the above

Question 17

The molecules in a room-temperature glass of water jostle around at

Accepted Answer

A) various speeds. 
B) much the same speed. 
C) constant speeds. 
A) various speeds. 
B) much the same speed. 
C) constant speeds.

Question 18

The number of grams of ice that can be melted by 1 g of 100°C steam is

Accepted Answer

A) 0.125 g. 
B) 0.148 g. 
C) 6.75 g. 
D) 8 g. 
E) none of the above 
A) 0.125 g. 
B) 0.148 g. 
C) 6.75 g. 
D) 8 g. 
E) none of the above

Exam 7: Heat Transfer and Change of Phase

Cold water will warm to room temperature faster in a

If an object absorbs more energy than it emits,its

Warm air rises because faster moving molecules tend to move to regions of less

The gush of steam that issues from the escape valve of a pressure cooker is relatively cool

When steam condenses to water,energy is

Explain why white clothing keeps us cool,whereas black clothing warms us.Which is the better reflector? Which is the better absorber?

Water can change phase to become ice by

The temperature at which a liquid freezes is

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

As ice is changed to water,energy is

If molecules in a sample of gas moved so they completely missed each other,with no other effects,the gas temperature would

When bringing water to a boil in the mountains,the time needed to reach the boiling point is

Why does a good emitter of heat radiation appear black at room temperature?

In a muggy region,the extra warmth you often feel is mainly due to

Peak frequency as noted on a radiation curve is directly proportional to the

The toy dunking bird of Figure 7.28 operates by way of

The molecules in a room-temperature glass of water jostle around at

The number of grams of ice that can be melted by 1 g of 100°C steam is

Patterns of Motion and Equilibrium

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

Thermal Energy and Thermodynamics

Static and Current Electricity

Magnetism and Electromagnetic Induction

Waves and Sound

Light

Atoms and the Periodic Table

The Atomic Nucleus and Radioactivity

Elements of Chemistry

How Atoms Bond and Molecules Attract

Mixtures

How Chemicals React

Two Classes of Chemical Reactions

Organic Compounds

Rocks and Minerals

Plate Tectonics and Earths Interior

Shaping Earths Surface

Geologic Time - Reading the Rock Record

The Oceans, Atmosphere, and Climatic Effects

Driving Forces of Weather

The Solar System

Stars and Galaxies

The Structure of Space and Time

Prologue: The Nature of Science

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