Question 1

Why is the light year a useful unit of measurement for astronomical distances?

Accepted Answer

The size of the universe is va...

Question 2

For where you live, how do daylength and the Sun's altitude vary throughout the year?

Accepted Answer

Answers will vary de...

Question 3

All points on Earth's surface experience the subsolar point at some moment during the year.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following is true of the September equinox?

Accepted Answer

A)   All latitudes on Earth, except the Equator, experience unequal daylengths.
B)   The subsolar point is at the Tropic of Cancer (23.5° N) .
C)   The sun rises at the South Pole, where it will remain over the horizon for the following six months.
D)   The Northern Hemisphere spring officially begins.
E)   The subsolar point is at the Tropic of Capricorn (23.5° S) .F) A) and E)
G) C) and D)

Question 5

Which of the following is not true regarding rotational velocities at different latitudes?

Accepted Answer

A)   At 90° latitude, the rotational velocity is 1452 kmph (902 mph) .
B)   At 0° latitude, the rotational velocity is 1675 kmph (1040 mph) .
C)   At 60° latitude, the rotational velocity is 838 kmph (521 mph) .
D)   At 30° latitude, the rotational velocity is 1452 kmph (902 mph) .E) A) and B)
F) B) and C)

Question 6

A light-year is an astronomical unit of length equal to approximately 9.5 trillion kilometers.

Accepted Answer

A) True 
 B)False

Question 7

The beginning of the Northern Hemisphere spring occurs when the subsolar point is at the Tropic of Cancer.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following is true for the December Solstice?

Accepted Answer

A)   The subsolar point is at the equator.
B)   The Arctic Circle is completely within the circle of illumination.
C)   The Antarctic Circle is completely within the circle of illumination.
D)   The subsolar point is at the Tropic of Cancer (23.5° N) .E) A) and B)
F) B) and D)

Question 9

What primary factors determine the seasons on Earth?

Accepted Answer

The Earth's revolution around ...

Question 10

Which of the following is true for the June Solstice?

Accepted Answer

A)   The subsolar point is at the equator.
B)   The Arctic Circle is completely within the circle of illumination.
C)   The Antarctic Circle is completely within the circle of illumination.
D)   The subsolar point is at the Tropic of Capricorn (23.5° S) .E) C) and D)
F) B) and D)

Question 11

Which of the following is true of the Sun's electromagnetic spectrum?

Accepted Answer

A)   It consists exclusively of radiant energy made of gamma ray, X-ray, and ultraviolet wavelengths.
B)   It consists exclusively of streams of charged particles.
C)   It consists of gamma ray, X-ray, ultraviolet, visible, and infrared wavelengths.
D)   It consists exclusively of visible light and infrared energy.E) All of the above
F) B) and D)

Question 12

Shorter wavelengths tend to have a lower frequency.

Accepted Answer

A) True 
 B)False

Question 13

The June solstice marks the beginning of the Southern Hemisphere's winter.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following is false?

Accepted Answer

A)   The Sun and Solar System are part of the Milky Way Galaxy.
B)   The Sun produces energy through fusion.
C)   The Sun is by far the largest star in the Milky Way Galaxy.
D)   The Sun is an average sized yellow star.E) A) and B)
F) B) and C)

Question 15

Astronauts deployed a solar wind measuring experiment on the Moon because

Accepted Answer

A)   the lunar surface is protected by an atmosphere.
B)   there is no electromagnetic energy arriving there.
C)   the solar wind does not reach the Earth's surface.
D)   no one else had attempted the experiment before and they wanted to be the first.E) A) and C)
F) A) and B)

Question 16

Which of the following cannot be attributed to the effects of Earth's rotation?

Accepted Answer

A)   daylength
B)   deflection of the winds
C)   deflection of the ocean currents
D)   rise and fall of tides
E)   latitudinal variations in net radiationF) B) and E)
G) B) and D)

Question 17

At all times during the year, the circle of illumination

Accepted Answer

A)   divides Earth between northern and southern hemispheres.
B)   divides Earth into eastern and western halves.
C)   separates winter from summer.
D)   divides Earth between equal halves of lightness and darkness.E) A) and C)
F) B) and C)

Question 18

The subsolar point's maximum latitude is 47° N/S.

Accepted Answer

A) True 
 B)False

Question 19

The dominant wavelength of energy emitted by the Sun is

Accepted Answer

A)   shorter than that emitted by Earth.
B)   longer than that emitted by Earth.
C)   the same length as that emitted by Earth.D) None of the above
E) All of the above

Question 20

Which of the following is true for the September Equinox?

Accepted Answer

A)   There is 24 hours of daylight at the North Pole.
B)   The Arctic Circle is completely within the circle of illumination.
C)   The Antarctic Circle is completely within the circle of illumination.
D)   The circle of illumination passes through both the poles.
E)   There is 24 hours of daylight at the South Pole.F) A) and B)
G) B) and E)

Exam 2: Solar Energy to Earth and the Seasons

The beginning of the Northern Hemisphere spring occurs when the subsolar point is at the Tropic of Cancer.

Correct AnswerverifiedShow Answer

The subsolar point's maximum latitude is 47° N/S.

Correct AnswerverifiedShow Answer

For where you live, how do daylength and the Sun's altitude vary throughout the year?

Correct AnswerverifiedAnswers will vary de...View AnswerShow Answer

Which of the following is not true regarding rotational velocities at different latitudes?

Correct AnswerverifiedShow Answer

Which of the following is true of the September equinox?

Correct AnswerverifiedShow Answer

A light-year is an astronomical unit of length equal to approximately 9.5 trillion kilometers.

Correct AnswerverifiedShow Answer

Which of the following is true of the Sun's electromagnetic spectrum?

Correct AnswerverifiedShow Answer

Which of the following is false?

Correct AnswerverifiedShow Answer

Why is the light year a useful unit of measurement for astronomical distances?

Correct AnswerverifiedThe size of the universe is va...View AnswerShow Answer

The June solstice marks the beginning of the Southern Hemisphere's winter.

Correct AnswerverifiedShow Answer

Which of the following is true for the June Solstice?

Correct AnswerverifiedShow Answer

Astronauts deployed a solar wind measuring experiment on the Moon because

Correct AnswerverifiedShow Answer

Which of the following is true for the September Equinox?

Correct AnswerverifiedShow Answer

Which of the following is true for the December Solstice?

Correct AnswerverifiedShow Answer

The dominant wavelength of energy emitted by the Sun is

Correct AnswerverifiedShow Answer

Shorter wavelengths tend to have a lower frequency.

Correct AnswerverifiedShow Answer

What primary factors determine the seasons on Earth?

Correct AnswerverifiedThe Earth's revolution around ...View AnswerShow Answer

Which of the following cannot be attributed to the effects of Earth's rotation?

Correct AnswerverifiedShow Answer

All points on Earth's surface experience the subsolar point at some moment during the year.

Correct AnswerverifiedShow Answer

At all times during the year, the circle of illumination

Correct AnswerverifiedShow Answer

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Answers will vary de...
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Correct Answer
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The size of the universe is va...
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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The Earth's revolution around ...
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Correct Answer
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