Question 1

The sidereal period of the Moon is

Accepted Answer

A)  about 27.32 days long.
B)  the period of time for the Moon to orbit Earth once with respect to the stars.
C)  the period of time between successive eclipses at a given location on Earth.
D)  the period of time from when the Moon rises until the Moon rises again the next night.
E)  about 27.32 days long and the period of time for the Moon to orbit Earth once with respect to the stars.F) B) and D)
G) B) and C)

Question 2

Relative to the stars, the Moon moves about ____ eastward in the sky each night.

Accepted Answer

A)  1°
B)  5°
C)  13°
D)  27.3°
E)  29.5°F) A) and B)
G) A) and C)

Question 3

The time for the Moon to repeat its cycle of phases is equal to

Accepted Answer

A)  its sidereal period.
B)  one day.
C)  one hour.
D)  one year.
E)  its synodic period.F) A) and E)
G) A) and D)

Question 4

What is the phase of the Moon shown in the following image

Accepted Answer

A)  waxing gibbous
B)  third quarter
C)  waning gibbous
D)  first quarterE) None of the above
F) A) and B)

Question 5

An eclipse of the Moon (lunar eclipse)  as seen from Earth, happens when

Accepted Answer

A)  the hot luminous Moon suddenly cools and stops emitting light.
B)  the Moon passes between Earth and the Sun.
C)  the Earth is between the Moon and the Sun.
D)  the Moon is 90 degrees from the direction of the Sun.E) C) and D)
F) All of the above

Question 6

The first-quarter Moon rises

Accepted Answer

A)  at about noon.
B)  at sunset.
C)  at sunrise.
D)  at about midnight.
E)  during the second week of each calendar month.F) B) and C)
G) A) and E)

Question 7

In the picture shown, in which hemisphere is the person located and the location of the Sun is above what geographic point on Earth

Accepted Answer

A)  northern, north of the equator
B)  southern, south of the equator
C)  northern, south of the equator
D)  southern, north of the equatorE) All of the above
F) A) and B)

Question 8

The most distant point in the Moon's orbit is called _________________.

Accepted Answer

A)  apogee
B)  perigee
C)  perihelion
D)  aphelionE) A) and D)
F) A) and C)

Question 9

The time is 9 pm and the Moon is setting in the west. The Moon phase is third quarter.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following is not visible during totality of a total solar eclipse

Accepted Answer

A)  the corona of the Sun
B)  the chromosphere of the Sun
C)  prominences
D)  the photosphere of the Sun
E)  All of the other choices are correct.F) B) and D)
G) All of the above

Question 11

-Diagram 3-1 shows three approximate locations of the setting Sun along the western horizon. Which number indicates the location of the Sun at sunset on December 21 (winter Sun)  for an observer at a latitude of 48° north of the equator Choose the best answer.

Accepted Answer

A)  1
B)  2
C)  3
D)  The Sun will set in the east for an observer in the southern hemisphere.
E)  The Sun will not set on December 21 at this latitude.F) B) and D)
G) C) and D)

Question 12

The figure shows the ______ and _____ Moon phases.

Accepted Answer

A)  crescent; first-quarter
B)  new; new
C)  crescent; full
D)  first-quarter; fullE) C) and D)
F) A) and B)

Question 13

The ____ Moon is visible above the western horizon a couple of hours before sunrise.

Accepted Answer

A)  waning gibbous
B)  waxing gibbous
C)  waxing crescent
D)  waning crescent
E)  newF) C) and D)
G) B) and E)

Question 14

In Brazil, the longest period of daylight and the start of summer occurs during the month of

Accepted Answer

A)  December.
B)  March.
C)  September.
D)  June.E) A) and C)
F) C) and D)

Question 15

The Moon and visible planets are always within a few degrees of the ecliptic.

Accepted Answer

A) True 
 B)False

Question 16

The ____ of the Moon is the period of time for the Moon to complete a cycle of the lunar phases and is approximately 29.5 days long.

Accepted Answer

A)  sidereal period
B)  Saros cycle
C)  synodic period
D)  eclipse season
E)  umbral periodF) A) and B)
G) B) and C)

Question 17

If the Moon's orbital plane was aligned with the celestial equator we could

Accepted Answer

A)  have eclipses every month.
B)  never have eclipses.
C)  have eclipses only at solstice.
D)  have eclipses only at the equinoxes.E) A) and B)
F) B) and D)

Question 18

Earth is closest to the Sun during the month of January. Explain then why we do not experience our hottest weather in January in the northern hemisphere.

Accepted Answer

It is the tilt of the Earth on its rotat...

Question 19

Earth doesn't experience a solar eclipse every month because

Accepted Answer

A)  of unpredictable weather patterns.
B)  the Moon always keeps its same side toward the Earth.
C)  the Moon's orbit plane is not aligned with the Earth's orbit plane.
D)  its sometimes nighttime when the eclipse occurs.
E)  sometimes the Moon is too far away.F) A) and C)
G) A) and E)

Question 20

A(n) ____________________ eclipse occurs when the Moon is at its greatest distance from Earth and the Moon is new and at a node in its orbit.

Accepted Answer

The answer of A(n) ____________________ eclipse occurs when the Moon...

Exam 3: Cycles of the Sun and Moon

The figure shows the ______ and _____ Moon phases.

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Earth doesn't experience a solar eclipse every month because

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A(n) ____________________ eclipse occurs when the Moon is at its greatest distance from Earth and the Moon is new and at a node in its orbit.

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The most distant point in the Moon's orbit is called _________________.

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The ____ of the Moon is the period of time for the Moon to complete a cycle of the lunar phases and is approximately 29.5 days long.

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Relative to the stars, the Moon moves about ____ eastward in the sky each night.

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The first-quarter Moon rises

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In Brazil, the longest period of daylight and the start of summer occurs during the month of

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The Moon and visible planets are always within a few degrees of the ecliptic.

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The time for the Moon to repeat its cycle of phases is equal to

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Earth is closest to the Sun during the month of January. Explain then why we do not experience our hottest weather in January in the northern hemisphere.

Correct AnswerverifiedIt is the tilt of the Earth on its rotat...View AnswerShow Answer

If the Moon's orbital plane was aligned with the celestial equator we could

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Which of the following is not visible during totality of a total solar eclipse

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An eclipse of the Moon (lunar eclipse) as seen from Earth, happens when

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The ____ Moon is visible above the western horizon a couple of hours before sunrise.

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The sidereal period of the Moon is

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-Diagram 3-1 shows three approximate locations of the setting Sun along the western horizon. Which number indicates the location of the Sun at sunset on December 21 (winter Sun) for an observer at a latitude of 48° north of the equator Choose the best answer.

Correct AnswerverifiedShow Answer

The time is 9 pm and the Moon is setting in the west. The Moon phase is third quarter.

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What is the phase of the Moon shown in the following image

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In the picture shown, in which hemisphere is the person located and the location of the Sun is above what geographic point on Earth

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The figure shows the __ and _ Moon phases.

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It is the tilt of the Earth on its rotat...
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