Question 1

The phase of the moon on a particular night is determined by

Accepted Answer

A)  the season of the year. 
B)  the speed of the moon in is orbit. 
C)  the relative positions of the sun, Earth, and moon. 
D)  how the Earth's shadow hits the moon. 
E)  the distance from the Earth to the moon. 
A)  the season of the year. 
B)  the speed of the moon in is orbit. 
C)  the relative positions of the sun, Earth, and moon. 
D)  how the Earth's shadow hits the moon. 
E)  the distance from the Earth to the moon.

Question 2

Total lunar eclipses always occur

Accepted Answer

A)  at the time of new moon. 
B)  at the time of full moon. 
C)  during either equinox. 
D)  during either solstice. 
E)  at the time that the sun is directly overhead. 
A)  at the time of new moon. 
B)  at the time of full moon. 
C)  during either equinox. 
D)  during either solstice. 
E)  at the time that the sun is directly overhead.

Question 3

In which direction does the daily motion of the moon occur in the sky, against the background stars, when viewed from the Earth?

Accepted Answer

A)  toward the west 
B)  toward the east 
C)  toward the north celestial pole in the summer and the south celestial pole in the winter 
D)  No predictable pattern can be discerned. 
A)  toward the west 
B)  toward the east 
C)  toward the north celestial pole in the summer and the south celestial pole in the winter 
D)  No predictable pattern can be discerned.

Question 4

Why are penumbral eclipses less obvious than partial eclipses?

Accepted Answer

The answer of Why are penumbral eclipses less obvious than...

Question 5

The moon's angular diameter in our sky as observed from Earth is measured to be 0.5°. From this, we can find the diameter of the moon in kilometers if we also know the moon's

Accepted Answer

A)  distance from the Earth. 
B)  element composition 
C)  distance from the sun. 
A)  distance from the Earth. 
B)  element composition 
C)  distance from the sun.

Question 6

During a total lunar eclipse,

Accepted Answer

A)  the moon must be new. 
B)  the observer must be in the path of totality. 
C)  the moon's color will be affected by Earth's atmosphere. 
D)  the moon must be at about its greatest distance from Earth. 
E)  it must be near the time of one of the equinoxes. 
A)  the moon must be new. 
B)  the observer must be in the path of totality. 
C)  the moon's color will be affected by Earth's atmosphere. 
D)  the moon must be at about its greatest distance from Earth. 
E)  it must be near the time of one of the equinoxes.

Question 7

During a total lunar eclipse, which of the following are true?

Accepted Answer

A)  I, III 
B)  II, IV 
C)  I, II, III 
D)  II, III 
E)  I, II, III, IV 
A)  I, III 
B)  II, IV 
C)  I, II, III 
D)  II, III 
E)  I, II, III, IV

Question 8

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

Question 9

A lunar eclipse may occur

Accepted Answer

A)  when the moon is first quarter phase. 
B)  when the moon is 3rd quarter phase. 
C)  when the moon is full. 
D)  when the moon is new. 
A)  when the moon is first quarter phase. 
B)  when the moon is 3rd quarter phase. 
C)  when the moon is full. 
D)  when the moon is new.

Question 10

A dime is 1.8 cm in diameter. Earth's moon is 3.844*1010 cm from Earth and has a diameter of 3.76*108 cm. At what distance from your eye would you have to hold a dime so that it has the same angular diameter as the full moon?

Accepted Answer

A)  200 cm 
B)  2 cm 
C)  0.2 cm 
D)  2 AU 
E)  2 LY 
A)  200 cm 
B)  2 cm 
C)  0.2 cm 
D)  2 AU 
E)  2 LY

Question 11

A solar eclipse that occurs when the moon's umbra does not reach Earth's surface is called

Accepted Answer

A)  a total solar eclipse. 
B)  a partial solar eclipse. 
C)  an annular solar eclipse. 
D)  a penumbral solar eclipse. 
E)  an umbral solar eclipse. 
A)  a total solar eclipse. 
B)  a partial solar eclipse. 
C)  an annular solar eclipse. 
D)  a penumbral solar eclipse. 
E)  an umbral solar eclipse.

Question 12

A total lunar eclipse is visible only from the path of totality.

Accepted Answer

A) True 
 B)False

Question 13

A(n) ____________________ moon rises in the eastern sky approximately as sun sets.

Accepted Answer

The answer of A(n) ____________________ moon rises in the eastern...

Question 14

A third quarter moon is visible

Accepted Answer

A)  near the eastern horizon just before sunrise. 
B)  near the eastern horizon just after sunset. 
C)  in the southern sky at sunrise. 
D)  in the southern sky at sunset. 
E)  from sunset until sunrise. 
A)  near the eastern horizon just before sunrise. 
B)  near the eastern horizon just after sunset. 
C)  in the southern sky at sunrise. 
D)  in the southern sky at sunset. 
E)  from sunset until sunrise.

Question 15

For a Northern Hemisphere observer the ____________________ moon is visible in the south-eastern sky just after sunset.

Accepted Answer

The answer of For a Northern Hemisphere observer the ____________________...

Question 16

An eclipse season is the interval during which the sun crosses a node of the moon's orbit.

Accepted Answer

A) True 
 B)False

Question 17

An eclipse season is the period of time during which the

Accepted Answer

A)  moon crosses a node in its orbit. 
B)  sun crosses a node in the moon's orbit. 
C)  line of nodes crosses the moon's orbit. 
D)  moon is new or full. 
E)  moon is visible during the day. 
A)  moon crosses a node in its orbit. 
B)  sun crosses a node in the moon's orbit. 
C)  line of nodes crosses the moon's orbit. 
D)  moon is new or full. 
E)  moon is visible during the day.

Question 18

The ecliptic can be defined as

Accepted Answer

A)  the plane that is perpendicular to the Earth's axis of rotation. 
B)  the projection of the Earth's equator onto the sky. 
C)  the path traced out by the moon in our sky in one month against the background stars. 
D)  the path traced out by the sun in our sky over one year against the background stars. 
A)  the plane that is perpendicular to the Earth's axis of rotation. 
B)  the projection of the Earth's equator onto the sky. 
C)  the path traced out by the moon in our sky in one month against the background stars. 
D)  the path traced out by the sun in our sky over one year against the background stars.

Question 19

A totally eclipsed moon glows coppery red because

Accepted Answer

A)  the moon's surface is made of iron ore which is red in color. 
B)  red light is cooler than blue light. 
C)  during a lunar eclipse the sun is cooler than normal and its light is more red. 
D)  only red light is able to pass completely through Earth's atmosphere and reach the moon. 
E)  the moon appears red during a total solar eclipse, not a total lunar eclipse. 
A)  the moon's surface is made of iron ore which is red in color. 
B)  red light is cooler than blue light. 
C)  during a lunar eclipse the sun is cooler than normal and its light is more red. 
D)  only red light is able to pass completely through Earth's atmosphere and reach the moon. 
E)  the moon appears red during a total solar eclipse, not a total lunar eclipse.

Question 20

At the time of the winter solstice (the start of winter) the sunlight is at a lower angle and thus is ____ than(as) in the start of summer.

Accepted Answer

A)  less intense 
B)  more intense 
C)  the same intensity 
A)  less intense 
B)  more intense 
C)  the same intensity

The phase of the moon on a particular night is determined by

Total lunar eclipses always occur

In which direction does the daily motion of the moon occur in the sky, against the background stars, when viewed from the Earth?

Why are penumbral eclipses less obvious than partial eclipses?

The moon's angular diameter in our sky as observed from Earth is measured to be 0.5°. From this, we can find the diameter of the moon in kilometers if we also know the moon's

During a total lunar eclipse,

During a total lunar eclipse, which of the following are true?

The first quarter moon rises

A lunar eclipse may occur

A dime is 1.8 cm in diameter. Earth's moon is 3.84410¹⁰ cm from Earth and has a diameter of 3.7610⁸ cm. At what distance from your eye would you have to hold a dime so that it has the same angular diameter as the full moon?

A solar eclipse that occurs when the moon's umbra does not reach Earth's surface is called

A total lunar eclipse is visible only from the path of totality.

A(n) ____________________ moon rises in the eastern sky approximately as sun sets.

A third quarter moon is visible

For a Northern Hemisphere observer the ____________________ moon is visible in the south-eastern sky just after sunset.

An eclipse season is the interval during which the sun crosses a node of the moon's orbit.

An eclipse season is the period of time during which the

The ecliptic can be defined as

A totally eclipsed moon glows coppery red because

At the time of the winter solstice (the start of winter) the sunlight is at a lower angle and thus is ____ than(as) in the start of summer.

Here and Now

A Users Guide to the Sky

The Origin of Modern Astronomy

Light and Telescopes

Atoms and Spectra

The Sun

The Family of Stars

The Formation and Structure of Stars

The Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies: Normal and Active

Modern Cosmology

The Origin of the Solar System

Earth and Moon: Bases for Comparative Planetology

Mercury, Venus and Mars

The Outer Solar System

Meteorites, Asteroids, and Comets

Astrobiology: Life on Other Worlds

Filters

Exam 3: Cycles of the Sun and Moon

The phase of the moon on a particular night is determined by

Total lunar eclipses always occur

In which direction does the daily motion of the moon occur in the sky, against the background stars, when viewed from the Earth?

Why are penumbral eclipses less obvious than partial eclipses?

The moon's angular diameter in our sky as observed from Earth is measured to be 0.5°. From this, we can find the diameter of the moon in kilometers if we also know the moon's

During a total lunar eclipse,

During a total lunar eclipse, which of the following are true?

The first quarter moon rises

A lunar eclipse may occur

A dime is 1.8 cm in diameter. Earth's moon is 3.844*1010 cm from Earth and has a diameter of 3.76*108 cm. At what distance from your eye would you have to hold a dime so that it has the same angular diameter as the full moon?

A solar eclipse that occurs when the moon's umbra does not reach Earth's surface is called

A total lunar eclipse is visible only from the path of totality.

A(n) ____________________ moon rises in the eastern sky approximately as sun sets.

A third quarter moon is visible

For a Northern Hemisphere observer the ____________________ moon is visible in the south-eastern sky just after sunset.

An eclipse season is the interval during which the sun crosses a node of the moon's orbit.

An eclipse season is the period of time during which the

The ecliptic can be defined as

A totally eclipsed moon glows coppery red because

At the time of the winter solstice (the start of winter) the sunlight is at a lower angle and thus is ____ than(as) in the start of summer.

Here and Now

A Users Guide to the Sky

The Origin of Modern Astronomy

Light and Telescopes

Atoms and Spectra

The Sun

The Family of Stars

The Formation and Structure of Stars

The Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies: Normal and Active

Modern Cosmology

The Origin of the Solar System

Earth and Moon: Bases for Comparative Planetology

Mercury, Venus and Mars

The Outer Solar System

Meteorites, Asteroids, and Comets

Astrobiology: Life on Other Worlds

Filters

A dime is 1.8 cm in diameter. Earth's moon is 3.84410¹⁰ cm from Earth and has a diameter of 3.7610⁸ cm. At what distance from your eye would you have to hold a dime so that it has the same angular diameter as the full moon?