Question 1

The pupil of your eye is a net

Accepted Answer

A)  absorber of radiant energy.
B)  emitter of radiant energy.
C)  reflector of radiant energy.
D)  none of the above

Question 2

In terms of transferring heat, red-hot wooden coals

Accepted Answer

A)  conduct quite well.
B)  conduct poorly.
C)  radiate poorly.
D)  convect poorly.

Question 3

Both black and white road surfaces absorb sunlight. The warmer road surface at the end of a sunny day is the

Accepted Answer

A)  black surface.
B)  white surface.
C)  neither of these

Question 4

A region of expanding air tends to

Accepted Answer

A)  cool.
B)  warm.
C)  both of the these
D)  neither of these

Question 5

If a pizza absorbs more energy than it emits, its temperature

Accepted Answer

A)  decreases.
B)  is unaffected.
C)  increases.
D)  none of the above

Question 6

The amount of solar energy per square meter atop the atmosphere at right angles to the Sun's rays is about

Accepted Answer

A)  700 joules.
B)  1000 joules.
C)  1400 joules.
D)  much more than 1400 joules.

Question 7

If you release a single molecule in an evacuated region it will initially

Accepted Answer

A)  fall just as a baseball would.
B)  move in any direction.
C)  convect upward.
D)  be buoyed upward.
E)  none of the above

Question 8

Looking forward, common consensus will likely agree that the wisest use of fossil fuels is to

Accepted Answer

A)  convert them to heat and smoke.
B)  save them for tomorrow's materials.
C)  extract and sell them as quickly as possible.
D)  all of the above

Question 9

Newton's law of cooling applies to objects undergoing

Accepted Answer

A)  cooling.
B)  warming.
C)  both of these
D)  neither of these

Question 10

Long ago a runaway greenhouse effect transformed the planet

Accepted Answer

A)  Mercury.
B)  Venus.
C)  Mars.
D)  all of the above

Question 11

You can safely hold your fingers on both sides of a candle flame due mainly to

Accepted Answer

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

Question 12

To save energy while you leave your warm house for a half hour on a cold day, turn the thermostat

Accepted Answer

A)  down.
B)  up.
C)  to room temperature.

Question 13

A block of wood and a block of copper will feel neither hot nor cold to the touch when they each have

Accepted Answer

A)  equal temperatures.
B)  your temperature.
C)  equal conductivities.
D)  none of the above

Question 14

Which of these are good conductors?

Accepted Answer

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

Question 15

Heat normally flows from objects of high

Accepted Answer

A)  internal energy to objects of low internal energy.
B)  temperature to objects of low temperature.
C)  both of these
D)  neither of these

Question 16

Which is the most abundant greenhouse gas in Earth's atmosphere?

Accepted Answer

A)  nitrogen.
B)  water vapor.
C)  carbon dioxide.
D)  none of the above

Question 17

The heat we enjoy on a sunny day is due mainly to the Sun's

Accepted Answer

A)  high surface temperature.
B)  relatively close distance.
C)  enormous size.
D)  none of the above

Question 18

When a volume of air is compressed, air temperature

Accepted Answer

A)  increases.
B)  decreases.
C)  neither of these

Question 19

If there were no greenhouse effect, Earth's average temperature would likely be

Accepted Answer

A)  near absolute zero.
B)  a frigid -18°C.
C)  comfortably cooler.
D)  warmer than now.

Question 20

Molecules in a region of expanding air more often collide with neighboring molecules that are

Accepted Answer

A)  approaching.
B)  receding.
C)  nearly out of range.

Exam 16: Heat Transfer

If a pizza absorbs more energy than it emits, its temperature

Correct AnswerverifiedShow Answer

Molecules in a region of expanding air more often collide with neighboring molecules that are

Correct AnswerverifiedShow Answer

When a volume of air is compressed, air temperature

Correct AnswerverifiedShow Answer

You can safely hold your fingers on both sides of a candle flame due mainly to

Correct AnswerverifiedShow Answer

A block of wood and a block of copper will feel neither hot nor cold to the touch when they each have

Correct AnswerverifiedShow Answer

To save energy while you leave your warm house for a half hour on a cold day, turn the thermostat

Correct AnswerverifiedShow Answer

A region of expanding air tends to

Correct AnswerverifiedShow Answer

Which is the most abundant greenhouse gas in Earth's atmosphere?

Correct AnswerverifiedShow Answer

The amount of solar energy per square meter atop the atmosphere at right angles to the Sun's rays is about

Correct AnswerverifiedShow Answer

Which of these are good conductors?

Correct AnswerverifiedShow Answer

Newton's law of cooling applies to objects undergoing

Correct AnswerverifiedShow Answer

If you release a single molecule in an evacuated region it will initially

Correct AnswerverifiedShow Answer

Looking forward, common consensus will likely agree that the wisest use of fossil fuels is to

Correct AnswerverifiedShow Answer

Long ago a runaway greenhouse effect transformed the planet

Correct AnswerverifiedShow Answer

In terms of transferring heat, red-hot wooden coals

Correct AnswerverifiedShow Answer

The pupil of your eye is a net

Correct AnswerverifiedShow Answer

Heat normally flows from objects of high

Correct AnswerverifiedShow Answer

Both black and white road surfaces absorb sunlight. The warmer road surface at the end of a sunny day is the

Correct AnswerverifiedShow Answer

The heat we enjoy on a sunny day is due mainly to the Sun's

Correct AnswerverifiedShow Answer

If there were no greenhouse effect, Earth's average temperature would likely be

Correct AnswerverifiedShow Answer

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