Question 1

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. 
A)  December. 
B)  March. 
C)  September. 
D)  June.

Question 2

Polaris has always been the star nearest the north celestial pole.

Accepted Answer

A) True 
 B)False

Question 3

A dime is 1.8 cm in diameter. 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)  2 m 
B)  2 cm 
C)  2 km 
D)  2 inches 
E)  2 ft 
A)  2 m 
B)  2 cm 
C)  2 km 
D)  2 inches 
E)  2 ft

Question 4

The lowest amount of solar energy per square meter is incident upon the surface of Earth in the northern hemisphere on or about

Accepted Answer

A)  December 21, the winter solstice. 
B)  March 21, the vernal equinox. 
C)  September 21, the autumnal equinox. 
D)  June 21, the summer solstice. 
A)  December 21, the winter solstice. 
B)  March 21, the vernal equinox. 
C)  September 21, the autumnal equinox. 
D)  June 21, the summer solstice.

Question 5

What two pieces of information are needed to determine the diameter of a faraway object? Explain how that information is used to determine the diameter.

Accepted Answer

The answer of What two pieces of information are needed...

Question 6

In the summer in the northern hemisphere,

Accepted Answer

A)  the Earth is closer to the sun. 
B)  the Earth's northern hemisphere is tilted toward the sun. 
C)  the Earth's northern hemisphere is tilted away from the sun. 
A)  the Earth is closer to the sun. 
B)  the Earth's northern hemisphere is tilted toward the sun. 
C)  the Earth's northern hemisphere is tilted away from the sun.

Question 7

Typically, the new moon's shadow _______ a solar eclipse

Accepted Answer

A)  passes north of Earth so as NOT to produce 
B)  passes south of Earth so as NOT to produce 
C)  passes either north or south of Earth so as NOT to produce 
D)  touches the sun so as to produce 
E)  touches Earth so as to produce 
A)  passes north of Earth so as NOT to produce 
B)  passes south of Earth so as NOT to produce 
C)  passes either north or south of Earth so as NOT to produce 
D)  touches the sun so as to produce 
E)  touches Earth so as to produce

Question 8

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)  new moon 
A)  waning gibbous 
B)  waxing gibbous 
C)  waxing crescent 
D)  waning crescent 
E)  new moon

Question 9

Why isn't the winter solstice the coldest day of the year?

Accepted Answer

The winter solstice, which occurs around

Question 10

Explain why a crescent moon can never be seen in the sky at midnight.

Accepted Answer

A crescent moon can never be seen in the

Question 11

If the plane of the Earth's equator were not tilted with respect to the ecliptic plane,

Accepted Answer

A)  the daylight period of Earth would be the same year-round. 
B)  there would be no seasonal changes. 
C)  Earth's poles would not experience six-month-long nights. 
D)  All of the above. 
A)  the daylight period of Earth would be the same year-round. 
B)  there would be no seasonal changes. 
C)  Earth's poles would not experience six-month-long nights. 
D)  All of the above.

Question 12

The ____________________ of the sun is not visible during a total solar eclipse.

Accepted Answer

The answer of The ____________________ of the sun is not...

Question 13

Why is the eclipse year shorter than 365.25 days?

Accepted Answer

The answer of Why is the eclipse year shorter than...

Question 14

If you were on the moon during a total lunar eclipse, the sun would be hidden behind Earth.

Accepted Answer

A) True 
 B)False

Question 15

____________________ is the point in Earth's orbit when Earth is closest to the sun.

Accepted Answer

The answer of ____________________ is the point in Earth's orbit...

Question 16

The synodic 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)  none of the 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)  none of the above.

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

Polaris has always been the star nearest the north celestial pole.

A dime is 1.8 cm in diameter. 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?

The lowest amount of solar energy per square meter is incident upon the surface of Earth in the northern hemisphere on or about

What two pieces of information are needed to determine the diameter of a faraway object? Explain how that information is used to determine the diameter.

In the summer in the northern hemisphere,

Typically, the new moon's shadow _______ a solar eclipse

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

Why isn't the winter solstice the coldest day of the year?

Explain why a crescent moon can never be seen in the sky at midnight.

If the plane of the Earth's equator were not tilted with respect to the ecliptic plane,

The ____________________ of the sun is not visible during a total solar eclipse.

Why is the eclipse year shorter than 365.25 days?

If you were on the moon during a total lunar eclipse, the sun would be hidden behind Earth.

____________________ is the point in Earth's orbit when Earth is closest to the sun.

The synodic period of the moon is

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

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Exam 3: Cycles of the Sun and Moon

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

Polaris has always been the star nearest the north celestial pole.

A dime is 1.8 cm in diameter. 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?

The lowest amount of solar energy per square meter is incident upon the surface of Earth in the northern hemisphere on or about

What two pieces of information are needed to determine the diameter of a faraway object? Explain how that information is used to determine the diameter.

In the summer in the northern hemisphere,

Typically, the new moon's shadow _______ a solar eclipse

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

Why isn't the winter solstice the coldest day of the year?

Explain why a crescent moon can never be seen in the sky at midnight.

If the plane of the Earth's equator were not tilted with respect to the ecliptic plane,

The ____________________ of the sun is not visible during a total solar eclipse.

Why is the eclipse year shorter than 365.25 days?

If you were on the moon during a total lunar eclipse, the sun would be hidden behind Earth.

____________________ is the point in Earth's orbit when Earth is closest to the sun.

The synodic period of the moon is

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