Question 1

As the Earth's moon orbits around the Earth,the tip of the moon's umbra which touches the Earth sweeps out the path for observers to see a total solar eclipse..

Accepted Answer

A) True 
 B)False

Question 2

For a first quarter moon,apoximately what is the angle eastward from the sun to the moon?

Accepted Answer

A)  30$\degree$ 
B)  90$\degree$ 
C)  180$\degree$ 
D)  360$\degree$ 
E)  0$\degree$ 
A)  30$\degree$ 
B)  90$\degree$ 
C)  180$\degree$ 
D)  360$\degree$ 
E)  0$\degree$

Question 3

During a month,in which direction does the 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

A total lunar eclipse is visible only from the path of totality where the shadow touches the Earth..

Accepted Answer

A) True 
 B)False

Question 5

A total solar eclipse occurred in Wolf Point,Montana,on Feb.26,1979.When would this eclipse again be visible in Montana?

Accepted Answer

A)  within 3 days of August 26,1979 
B)  within 3 days of March 29,2033 
C)  within 3 days of March 9.1997 
D)  within 3 days of March 13,1979 
E)  within 3 days of Jan.1,2000 
A)  within 3 days of August 26,1979 
B)  within 3 days of March 29,2033 
C)  within 3 days of March 9.1997 
D)  within 3 days of March 13,1979 
E)  within 3 days of Jan.1,2000

Question 6

The totally eclipsed moon may glow coppery red because sunlight reaches the moon's surface after passing through Earth's atmosphere.

Accepted Answer

A) True 
 B)False

Question 7

Total lunar eclipses always occur

Accepted Answer

A)  during the time of new moon. 
B)  during the time of full moon. 
C)  on either the vernal or autumnal equinox. 
D)  on either the summer or winter solstice. 
E)  when the moon is near one of the solstice points. 
A)  during the time of new moon. 
B)  during the time of full moon. 
C)  on either the vernal or autumnal equinox. 
D)  on either the summer or winter solstice. 
E)  when the moon is near one of the solstice points.

Question 8

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 9

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 10

A(n)____________________ moon is visible in the southeastern sky just after sunset.

Accepted Answer

The answer of A(n)____________________ moon is visible in the southeastern...

Question 11

A totally eclipsed moon glows coppery red because

Accepted Answer

A)  the moon' 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)  red light is better 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' 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)  red light is better 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 12

The phases of the moon are caused by its _____ and _____.

Accepted Answer

A)  spherical shape; orbital motion around the sun 
B)  cubical shape; orbital motion around the sun 
C)  cubical shape; orbital motion around Earth 
D)  spherical shape; orbital motion around Earth 
A)  spherical shape; orbital motion around the sun 
B)  cubical shape; orbital motion around the sun 
C)  cubical shape; orbital motion around Earth 
D)  spherical shape; orbital motion around Earth

Question 13

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

Question 14

The umbra of the moon's shadow is the region from which no part of the photosphere of the Sun is visible.

Accepted Answer

A) True 
 B)False

Question 15

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 16

The complete cycle of lunar phases takes 29.53 days,also known as the Moon's ____________________ period.

Accepted Answer

The answer of The complete cycle of lunar phases takes...

Question 17

Which of the following is not visible during the 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 above 
A)  the corona of the sun 
B)  the chromosphere of the sun 
C)  prominences 
D)  the photosphere of the sun 
E)  all of the above

Question 18

The synodic period of the moon

Accepted Answer

A)  is about 27.32 days long. 
B)  is the period of time for the moon to orbit Earth once with respect to the stars. 
C)  is the period of time between successive eclipses at a given location on Earth. 
D)  is the period of time from when the moon rises until the moon rises again the next night. 
E)  none of the above 
A)  is about 27.32 days long. 
B)  is the period of time for the moon to orbit Earth once with respect to the stars. 
C)  is the period of time between successive eclipses at a given location on Earth. 
D)  is the period of time from when the moon rises until the moon rises again the next night. 
E)  none of the above

Question 19

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 20

The Moon's angular diameter in our sky is measured to be 0.5$\degree$.From this,we can find

Accepted Answer

A)  the mass density of the Moon if we know its distance from the Earth. 
B)  diameter of the Moon if we know the Moon's distance. 
C)  diameter of the Moon with no other information about the Moon. 
D)  distance to the Moon with no other information about the Moon. 
A)  the mass density of the Moon if we know its distance from the Earth. 
B)  diameter of the Moon if we know the Moon's distance. 
C)  diameter of the Moon with no other information about the Moon. 
D)  distance to the Moon with no other information about the Moon.

Exam 3: Cycles of the Moon

As the Earth's moon orbits around the Earth,the tip of the moon's umbra which touches the Earth sweeps out the path for observers to see a total solar eclipse..

For a first quarter moon,apoximately what is the angle eastward from the sun to the moon?

During a month,in which direction does the motion of the Moon occur in the sky,against the background stars,when viewed from the Earth?

A total lunar eclipse is visible only from the path of totality where the shadow touches the Earth..

A total solar eclipse occurred in Wolf Point,Montana,on Feb.26,1979.When would this eclipse again be visible in Montana?

The totally eclipsed moon may glow coppery red because sunlight reaches the moon's surface after passing through Earth's atmosphere.

Total lunar eclipses always occur

The ecliptic can be defined as

The first quarter moon rises

A(n)____________________ moon is visible in the southeastern sky just after sunset.

A totally eclipsed moon glows coppery red because

The phases of the moon are caused by its _____ and _____.

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

The umbra of the moon's shadow is the region from which no part of the photosphere of the Sun is visible.

An eclipse season is the period of time during which the

The complete cycle of lunar phases takes 29.53 days,also known as the Moon's ____________________ period.

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

The synodic period of the moon

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

The Moon's angular diameter in our sky is measured to be 0.5 °\degree° .From this,we can find

Here and Now

A Users Guide to the Sky

The Origin of Modern Astronomy

Gravity

Light and Telescopes

Atoms and Spectra

The Sun

The Family of Stars

The Interstellar Medium

The Formation and Structure of Stars

Stellar Evolution

The Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies

Active Galaxies and Supermassive Black Holes

Modern Cosmology

The Origin of the Solar System

Earth: the Standard of Comparative Planetology

The Moon and Mercury: Comparing Airless Worlds

Venus and Mars

Jupiter and Saturn

Uranus,neptune,and the Kuiper Belt

Meteorites,asteroids,and Comets

Astrobiology: Life on Other Worlds

Filters

The phases of the moon are caused by its _ and _.

The Moon's angular diameter in our sky is measured to be 0.5 $\degree$ .From this,we can find