Question 1

If the sun passes directly overhead on at least one day per year, then

Accepted Answer

A)  you are within 23° latitude of the equator. 
B)  you are within 66° latitude of the equator. 
C)  you must be exactly on the equator. 
D)  you could be anywhere because this occurs at least once per year at any location on the Earth. 
A)  you are within 23° latitude of the equator. 
B)  you are within 66° latitude of the equator. 
C)  you must be exactly on the equator. 
D)  you could be anywhere because this occurs at least once per year at any location on the Earth. A

Question 2

A total solar eclipse will be visible from the same location on Earth one Saros cycle later.

Accepted Answer

A) True 
 B)False  False

Question 3

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)  a and b above. 
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)  a and b above. E

Question 4

For a first quarter moon, approximately 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 5

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

Accepted Answer

A) True 
 B)False

Question 6

A solar or lunar eclipse will occur

Accepted Answer

A)  when the sun is near the line of nodes of the moon, and the moon is new or full. 
B)  any time the moon is new or full. 
C)  when the sun is near the solstice, and the moon is new or full. 
D)  half-way through an eclipse year. 
E)  when the sun is near the equinox, and the moon is new or full. 
A)  when the sun is near the line of nodes of the moon, and the moon is new or full. 
B)  any time the moon is new or full. 
C)  when the sun is near the solstice, and the moon is new or full. 
D)  half-way through an eclipse year. 
E)  when the sun is near the equinox, and the moon is new or full.

Question 7

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

Question 8

A total solar eclipse occurred in Wolf Point, Montana, on Feb. 26, 1979. When was (will) an eclipse like this eclipse next (be) visible again in Montana? Hint: A Saros is 18 years and 11 1/3 days. Twice a Saros is 36 years 22 2/3 days. Three times a Saros is 56 years 34 days. So the best choice answer of these listed will be late ______.

Accepted Answer

A)  August of 1979 
B)  March of 2033 
C)  March of 1997 
D)  March of 1979 
E)  January of 2000 
A)  August of 1979 
B)  March of 2033 
C)  March of 1997 
D)  March of 1979 
E)  January of 2000

Question 9

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 10

Give two reasons why summer days are warmer than winter days.

Accepted Answer

The answer of Give two reasons why summer days are...

Question 11

At sunset, the ____ moon phase will be highest above the southern horizon for an observer in the Northern Hemisphere.

Accepted Answer

A)  new 
B)  waxing crescent 
C)  first quarter 
D)  full 
E)  third quarter 
A)  new 
B)  waxing crescent 
C)  first quarter 
D)  full 
E)  third quarter

Question 12

The moon's synodic period is longer than its sidereal period.

Accepted Answer

A) True 
 B)False

Question 13

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 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 14

A lunar eclipse can only occur during the full phase.

Accepted Answer

A) True 
 B)False

Question 15

Describe how a small change in the relative distance of Earth from the sun at perihelion could affect the formation of glaciers on Earth.

Accepted Answer

A small change in the relative distance

Question 16

A total lunar eclipse is

Accepted Answer

A)  visible only from the path of totality. 
B)  visible only during a new moon. 
C)  visible to all observers on the side of Earth from which the moon would be visible at that time. 
D)  an opportunity to study the corona of the sun. 
E)  none of the above. 
A)  visible only from the path of totality. 
B)  visible only during a new moon. 
C)  visible to all observers on the side of Earth from which the moon would be visible at that time. 
D)  an opportunity to study the corona of the sun. 
E)  none of the above.

Question 17

In the Milankovitch theory, the elliptical shape of the Earth's orbit, its axis tilt, and axis precession vary with time. These combined at times to create ____ on Earth.

Accepted Answer

A)  day and night 
B)  seasonal temperature variations 
C)  daily temperature variations 
D)  ice ages 
E)  the constellations 
A)  day and night 
B)  seasonal temperature variations 
C)  daily temperature variations 
D)  ice ages 
E)  the constellations

Question 18

Relative to the stars in the sky, the sun moves

Accepted Answer

A)  about one degree westward each day. 
B)  about one degree eastward each day. 
C)  about 360 degrees westward each day. 
D)  about 360 degrees eastward each day. 
E)  along the celestial equator. 
A)  about one degree westward each day. 
B)  about one degree eastward each day. 
C)  about 360 degrees westward each day. 
D)  about 360 degrees eastward each day. 
E)  along the celestial equator.

Question 19

A solar 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 20

Which of the following causes seasons on Earth?

Accepted Answer

A)  Earth being closer to the sun during our summer and farther during our winter 
B)  the sun's varying light output 
C)  the tilt of Earth's axis 
D)  the eleven-year sunspot cycle 
A)  Earth being closer to the sun during our summer and farther during our winter 
B)  the sun's varying light output 
C)  the tilt of Earth's axis 
D)  the eleven-year sunspot cycle

If the sun passes directly overhead on at least one day per year, then

A total solar eclipse will be visible from the same location on Earth one Saros cycle later.

The sidereal period of the moon is

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

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

A solar or lunar eclipse will occur

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

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

Give two reasons why summer days are warmer than winter days.

At sunset, the ____ moon phase will be highest above the southern horizon for an observer in the Northern Hemisphere.

The moon's synodic period is longer than its sidereal period.

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

A lunar eclipse can only occur during the full phase.

Describe how a small change in the relative distance of Earth from the sun at perihelion could affect the formation of glaciers on Earth.

A total lunar eclipse is

In the Milankovitch theory, the elliptical shape of the Earth's orbit, its axis tilt, and axis precession vary with time. These combined at times to create ____ on Earth.

Relative to the stars in the sky, the sun moves

A solar eclipse may occur

Which of the following causes seasons on Earth?

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

If the sun passes directly overhead on at least one day per year, then

A total solar eclipse will be visible from the same location on Earth one Saros cycle later.

The sidereal period of the moon is

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

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

A solar or lunar eclipse will occur

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

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

Give two reasons why summer days are warmer than winter days.

At sunset, the ____ moon phase will be highest above the southern horizon for an observer in the Northern Hemisphere.

The moon's synodic period is longer than its sidereal period.

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

A lunar eclipse can only occur during the full phase.

Describe how a small change in the relative distance of Earth from the sun at perihelion could affect the formation of glaciers on Earth.

A total lunar eclipse is

In the Milankovitch theory, the elliptical shape of the Earth's orbit, its axis tilt, and axis precession vary with time. These combined at times to create ____ on Earth.

Relative to the stars in the sky, the sun moves

A solar eclipse may occur

Which of the following causes seasons on Earth?

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