Question 1

As a block of ice at 0°C melts,the block absorbs energy

Accepted Answer

A) and decreases in temperature. 
B) and increases in temperature. 
C) without a temperature change. 
D) all of the above 
E) none of the above 
A) and decreases in temperature. 
B) and increases in temperature. 
C) without a temperature change. 
D) all of the above 
E) none of the above

Question 2

When snow falls,the surrounding air is normally

Accepted Answer

A) cooled. 
B) warmed. 
C) both of these 
D) none of the above 
A) cooled. 
B) warmed. 
C) both of these 
D) none of the above

Question 3

A soda can with a small amount of water is on a hot stove.Soon steam comes from its opening.When the can is quickly inverted into a pan of water,the can is crushed by

Accepted Answer

A) suction of the can interior. 
B) condensation. 
C) atmospheric pressure. 
D) a drop in temperature. 
A) suction of the can interior. 
B) condensation. 
C) atmospheric pressure. 
D) a drop in temperature.

Question 4

When salt is introduced to water,the temperature at which freezing occurs is

Accepted Answer

A) quite unaffected. 
B) lowered. 
C) increased. 
D) dependent on the shape of salt and ice crystals 
A) quite unaffected. 
B) lowered. 
C) increased. 
D) dependent on the shape of salt and ice crystals

Question 5

Glass is largely opaque to

Accepted Answer

A) infrared light. 
B) visible light. 
C) ultraviolet light. 
A) infrared light. 
B) visible light. 
C) ultraviolet light.

Question 6

If a volume of air is warmed,it expands.If a volume of air expands,it

Accepted Answer

A) warms. 
B) cools. 
C) neither of these 
A) warms. 
B) cools. 
C) neither of these

Question 7

Glass in a florist's greenhouse acts as a one-way valve by

Accepted Answer

A) blocking the flow of light energy. 
B) blocking unwanted radiation. 
C) being transparent only to lower-frequency waves. 
D) allowing high-frequency waves to enter and blocking low-frequency waves from exiting. 
A) blocking the flow of light energy. 
B) blocking unwanted radiation. 
C) being transparent only to lower-frequency waves. 
D) allowing high-frequency waves to enter and blocking low-frequency waves from exiting.

Question 8

A good heat conductor is a

Accepted Answer

A) poor insulator. 
B) good insulator. 
C) neither of these 
A) poor insulator. 
B) good insulator. 
C) neither of these

Question 9

Glass in a florist's greenhouse blocks radiation of relatively

Accepted Answer

A) high frequencies. 
B) low frequencies. 
C) all frequencies. 
A) high frequencies. 
B) low frequencies. 
C) all frequencies.

Question 10

When evaporation occurs in a dish of water,the molecules remaining in the water

Accepted Answer

A) are less energetic. 
B) have decreased average speeds. 
C) are at a lower temperature. 
D) all of the above 
A) are less energetic. 
B) have decreased average speeds. 
C) are at a lower temperature. 
D) all of the above

Question 11

If you keep decreasing the kinetic energy of atoms in a liquid,the liquid may

Accepted Answer

A) melt. 
B) condense. 
C) solidify. 
A) melt. 
B) condense. 
C) solidify.

Question 12

A bare roof of a warmly heated home on a snowy day indicates

Accepted Answer

A) an unwanted flow of heat. 
B) good insulation. 
C) a change of phase. 
D) all of the above 
A) an unwanted flow of heat. 
B) good insulation. 
C) a change of phase. 
D) all of the above

Question 13

Foreign ions introduced to water

Accepted Answer

A) lower the freezing point of water. 
B) raise the freezing point of water. 
C) do not affect water's freezing point. 
A) lower the freezing point of water. 
B) raise the freezing point of water. 
C) do not affect water's freezing point.

Question 14

To say you can never change only one thing means that when you change something,

Accepted Answer

A) some other thing or things change. 
B) only one other thing will change. 
C) you can't reverse it. 
A) some other thing or things change. 
B) only one other thing will change. 
C) you can't reverse it.

Question 15

A piece of iron and a cup of water both at room temperature are heated such that the thermal energy of each doubles.Which has the higher temperature?

Accepted Answer

A) the water,because of its higher specific heat capacity 
B) the iron,because it doesn't change phase 
C) both the same 
D) none of the above 
A) the water,because of its higher specific heat capacity 
B) the iron,because it doesn't change phase 
C) both the same 
D) none of the above

Question 16

Which emits radiation of the highest frequency?

Accepted Answer

A) a red-hot star 
B) the Sun 
C) a blue-hot star 
D) all the same 
A) a red-hot star 
B) the Sun 
C) a blue-hot star 
D) all the same

Question 17

We feel uncomfortably warm on a muggy day because water molecules are

Accepted Answer

A) evaporating from our moist bodies. 
B) condensing on our bodies. 
C) preventing the evaporation from our moist bodies. 
A) evaporating from our moist bodies. 
B) condensing on our bodies. 
C) preventing the evaporation from our moist bodies.

Question 18

To say that evaporation is a cooling process is to say that the

Accepted Answer

A) water left behind is cool. 
B) air cools as water warms. 
C) condensation is minimum. 
A) water left behind is cool. 
B) air cools as water warms. 
C) condensation is minimum.

Question 19

The main reason you can walk barefoot on red-hot coals of wood without burning your feet involves

Accepted Answer

A) low temperature of the coals. 
B) low conductivity of the coals. 
C) mind over matter techniques. 
A) low temperature of the coals. 
B) low conductivity of the coals. 
C) mind over matter techniques.

Question 20

Which of these are good conductors?

Accepted Answer

A) feathers 
B) wood 
C) snow 
D) all the above 
E) none of the above 
A) feathers 
B) wood 
C) snow 
D) all the above 
E) none of the above

Exam 7: Heat Transfer and Change of Phase

As a block of ice at 0°C melts,the block absorbs energy

When snow falls,the surrounding air is normally

A soda can with a small amount of water is on a hot stove.Soon steam comes from its opening.When the can is quickly inverted into a pan of water,the can is crushed by

When salt is introduced to water,the temperature at which freezing occurs is

Glass is largely opaque to

If a volume of air is warmed,it expands.If a volume of air expands,it

Glass in a florist's greenhouse acts as a one-way valve by

A good heat conductor is a

Glass in a florist's greenhouse blocks radiation of relatively

When evaporation occurs in a dish of water,the molecules remaining in the water

If you keep decreasing the kinetic energy of atoms in a liquid,the liquid may

A bare roof of a warmly heated home on a snowy day indicates

Foreign ions introduced to water

To say you can never change only one thing means that when you change something,

A piece of iron and a cup of water both at room temperature are heated such that the thermal energy of each doubles.Which has the higher temperature?

Which emits radiation of the highest frequency?

We feel uncomfortably warm on a muggy day because water molecules are

To say that evaporation is a cooling process is to say that the

The main reason you can walk barefoot on red-hot coals of wood without burning your feet involves

Which of these are good conductors?

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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