Question 1

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 2

The celestial equator always passes directly overhead.

Accepted Answer

A) True 
 B)False

Question 3

Earth s rotation axis ____________________ slowly so that in a few thousand years Polaris will no longer be the North Star.

Accepted Answer

The answer of Earth s rotation axis ____________________ slowly so...

Question 4

What would you see if you were on the moon and facing Earth when people on Earth saw a total lunar eclipse?

Accepted Answer

If you were on the moon facing Earth dur

Question 5

Navigators can find their latitude in the northern hemisphere by measuring the angle from the northern horizon to the north celestial pole.

Accepted Answer

A) True 
 B)False

Question 6

If the Earth s period of rotation doubled, but the period of revolution stayed the same

Accepted Answer

A)  the night would be twice as long. 
B)  the night would be half as long. 
C)  the year would be half as long. 
D)  the year would be twice as long. 
E)  the length of the day would be unchanged 
A)  the night would be twice as long. 
B)  the night would be half as long. 
C)  the year would be half as long. 
D)  the year would be twice as long. 
E)  the length of the day would be unchanged

Question 7

You live at a latitude of 73 N. What is the angle between the northern horizon and the north celestial pole?

Accepted Answer

A)  73 
B)  27 
C)  17 
D)  23.5 
E)  5 
A)  73 
B)  27 
C)  17 
D)  23.5 
E)  5

Question 8

If you point toward the zenith right now and then point there again 6 hours later, you will have pointed twice in the same direction relative to

Accepted Answer

A)  your horizon. 
B)  the Sun. 
C)  the Moon. 
D)  the fixed stars. 
A)  your horizon. 
B)  the Sun. 
C)  the Moon. 
D)  the fixed stars.

Question 9

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 10

Precession of the rotation axis of Earth is caused by

Accepted Answer

A)  the force of gravity from the sun and moon on Earth s equatorial bulge. 
B)  the force of gravity from the sun and Jupiter on the Earth-moon system. 
C)  the magnetic field of Earth. 
D)  the formation and subsequent melting of glaciers during the ice-ages. 
E)  the impact of asteroids. 
A)  the force of gravity from the sun and moon on Earth s equatorial bulge. 
B)  the force of gravity from the sun and Jupiter on the Earth-moon system. 
C)  the magnetic field of Earth. 
D)  the formation and subsequent melting of glaciers during the ice-ages. 
E)  the impact of asteroids.

Question 11

Star A has an apparent visual magnitude of 6.3 and star B has an apparent visual magnitude of 5.3. Star A is ____________________ times ____________________ than star B.

Accepted Answer

The answer of Star A has an apparent visual magnitude...

Question 12

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 13

How much of the night sky is north of the celestial equator?

Accepted Answer

A)  Less than one-half, because of the tilt of the equator to the ecliptic plane. 
B)  More than one-half, because of the precession of the poles. 
C)  Exactly one-half. 
D)  All of the night sky. 
A)  Less than one-half, because of the tilt of the equator to the ecliptic plane. 
B)  More than one-half, because of the precession of the poles. 
C)  Exactly one-half. 
D)  All of the night sky.

Question 14

The diagram below shows three approximate locations of the sun along the western horizon. Which number indicates the location of the sun at sunset on autumnal equinox for an observer at a latitude of 45 N?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  The sun will set in the east for an observer in the northern hemisphere. 
E)  The sun will not set on autumnal equinox at this latitude. 
A)  1 
B)  2 
C)  3 
D)  The sun will set in the east for an observer in the northern hemisphere. 
E)  The sun will not set on autumnal equinox at this latitude.

Question 15

Why are penumbral eclipses less obvious than partial eclipses?

Accepted Answer

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

Question 16

For an observer at 30 N latitude, what is the maximum angle between the observer s southern horizon and the moon?

Accepted Answer

A)  30 
B)  53.5 
C)  58.5 
D)  83.5 
E)  88.5 
A)  30 
B)  53.5 
C)  58.5 
D)  83.5 
E)  88.5

Question 17

Stars in the same constellation

Accepted Answer

A)  probably formed at the same time. 
B)  must be part of the same cluster of stars in space. 
C)  must have been discovered at about the same time at the same location in space. 
D)  may actually be very different distances away from the observer and from each other. 
A)  probably formed at the same time. 
B)  must be part of the same cluster of stars in space. 
C)  must have been discovered at about the same time at the same location in space. 
D)  may actually be very different distances away from the observer and from each other.

Question 18

You live at a latitude of 28 N. What is the angle between the northern horizon and the north celestial pole?

Accepted Answer

A)  62 
B)  28 
C)  40 
D)  23.5 
E)  5 
A)  62 
B)  28 
C)  40 
D)  23.5 
E)  5

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 apparent visual magnitude of a star is a measure of the star s

Accepted Answer

A)  size. 
B)  intensity. 
C)  distance. 
D)  color. 
E)  temperature. 
A)  size. 
B)  intensity. 
C)  distance. 
D)  color. 
E)  temperature.

A third quarter moon is visible

The celestial equator always passes directly overhead.

Earth s rotation axis ____________________ slowly so that in a few thousand years Polaris will no longer be the North Star.

What would you see if you were on the moon and facing Earth when people on Earth saw a total lunar eclipse?

Navigators can find their latitude in the northern hemisphere by measuring the angle from the northern horizon to the north celestial pole.

If the Earth s period of rotation doubled, but the period of revolution stayed the same

You live at a latitude of 73 N. What is the angle between the northern horizon and the north celestial pole?

If you point toward the zenith right now and then point there again 6 hours later, you will have pointed twice in the same direction relative to

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

Precession of the rotation axis of Earth is caused by

Star A has an apparent visual magnitude of 6.3 and star B has an apparent visual magnitude of 5.3. Star A is times than star B.

Total lunar eclipses always occur

How much of the night sky is north of the celestial equator?

The diagram below shows three approximate locations of the sun along the western horizon. Which number indicates the location of the sun at sunset on autumnal equinox for an observer at a latitude of 45 N?

Why are penumbral eclipses less obvious than partial eclipses?

For an observer at 30 N latitude, what is the maximum angle between the observer s southern horizon and the moon?

Stars in the same constellation

You live at a latitude of 28 N. What is the angle between the northern horizon and the north celestial pole?

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

The apparent visual magnitude of a star is a measure of the star s

Here and Now

The Origin of Modern Astronomy

Light and Telescopes

Sun Light and Sun Atoms

The Terrestrial Planets

The Outer Solar System

Origins of the Solar System and Extrasolar Planets

The Family of Stars

Structure and Formation of Stars

The Deaths of Stars

The Milky Way Galaxy

Galaxies: Normal and Active

Modern Cosmology

Life on Other Worlds

Filters

Exam 2: Users Guide to the Sky: Patterns and Cycles

A third quarter moon is visible

The celestial equator always passes directly overhead.

Earth s rotation axis ____________________ slowly so that in a few thousand years Polaris will no longer be the North Star.

What would you see if you were on the moon and facing Earth when people on Earth saw a total lunar eclipse?

Navigators can find their latitude in the northern hemisphere by measuring the angle from the northern horizon to the north celestial pole.

If the Earth s period of rotation doubled, but the period of revolution stayed the same

You live at a latitude of 73 N. What is the angle between the northern horizon and the north celestial pole?

If you point toward the zenith right now and then point there again 6 hours later, you will have pointed twice in the same direction relative to

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

Precession of the rotation axis of Earth is caused by

Star A has an apparent visual magnitude of 6.3 and star B has an apparent visual magnitude of 5.3. Star A is ____________________ times ____________________ than star B.

Total lunar eclipses always occur

How much of the night sky is north of the celestial equator?

The diagram below shows three approximate locations of the sun along the western horizon. Which number indicates the location of the sun at sunset on autumnal equinox for an observer at a latitude of 45 N?

Why are penumbral eclipses less obvious than partial eclipses?

For an observer at 30 N latitude, what is the maximum angle between the observer s southern horizon and the moon?

Stars in the same constellation

You live at a latitude of 28 N. What is the angle between the northern horizon and the north celestial pole?

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

The apparent visual magnitude of a star is a measure of the star s

Here and Now

The Origin of Modern Astronomy

Light and Telescopes

Sun Light and Sun Atoms

The Terrestrial Planets

The Outer Solar System

Origins of the Solar System and Extrasolar Planets

The Family of Stars

Structure and Formation of Stars

The Deaths of Stars

The Milky Way Galaxy

Galaxies: Normal and Active

Modern Cosmology

Life on Other Worlds

Filters

Star A has an apparent visual magnitude of 6.3 and star B has an apparent visual magnitude of 5.3. Star A is times than star B.