Question 1

Figure 2
-In Figure 2, at which position must the moon be located in order for a lunar eclipse to occur?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 2

The ecliptic is defined by the motion of _________ in the sky.

Accepted Answer

A)  the Moon 
B)  the Sun 
C)  the planets 
D)  Polaris 
E)  the stars 
A)  the Moon 
B)  the Sun 
C)  the planets 
D)  Polaris 
E)  the stars

Question 3

The seasons on Earth are caused by the change in distance between the Sun and Earth.

Accepted Answer

A) True 
 B)False

Question 4

What time does a third-quarter Moon rise?

Accepted Answer

A)  12 midnight 
B)  12 noon 
C)  3 P.M. 
D)  6 A.M. 
E)  6 P.M. 
A)  12 midnight 
B)  12 noon 
C)  3 P.M. 
D)  6 A.M. 
E)  6 P.M.

Question 5

Consider an observer located on the equator. If the observer sees a star directly overhead at 8 P.M., where will that star be located in the night sky at midnight? How far above the horizon will it be or will it have set?

Accepted Answer

The star will move westward by

Question 6

How far away on average is the Earth from the Sun?

Accepted Answer

A)  1 light-second 
B)  1 light-minute 
C)  1 astronomical unit 
D)  1 light-hour 
E)  1 light-year 
A)  1 light-second 
B)  1 light-minute 
C)  1 astronomical unit 
D)  1 light-hour 
E)  1 light-year

Question 7

At what latitude is the north celestial pole located at your zenith?

Accepted Answer

A)  "0°" 
B)  "+30°" 
C)  "+60°" 
D)  "+90°" 
E)  "This occurs at every latitude." 
A)  "0°" 
B)  "+30°" 
C)  "+60°" 
D)  "+90°" 
E)  "This occurs at every latitude."

Question 8

Earth experiences seasons due to the tilt of its axis. What are two consequences of this tilt that contribute to the seasons?

Accepted Answer

(1) Variation in the

Question 9

Solar and lunar eclipses are rare because:

Accepted Answer

A)  the Moon's orbital plane is tipped by 5.2° relative to the plane defined by the Earth's equator 
B)  the Moon's orbital plane is tipped by 5.2° relative to the Earth's orbital plane 
C)  the Moon's orbital plane is tipped by 23.5° relative to the plane defined by the Earth's equator 
D)  the Moon's orbital plane is tipped by 23.5° relative to the Earth's orbital plane 
E)  the Moon's orbital plane is tipped by 5.2° relative to the galactic plane 
A)  the Moon's orbital plane is tipped by 5.2° relative to the plane defined by the Earth's equator 
B)  the Moon's orbital plane is tipped by 5.2° relative to the Earth's orbital plane 
C)  the Moon's orbital plane is tipped by 23.5° relative to the plane defined by the Earth's equator 
D)  the Moon's orbital plane is tipped by 23.5° relative to the Earth's orbital plane 
E)  the Moon's orbital plane is tipped by 5.2° relative to the galactic plane

Question 10

Approximately how often do lunar eclipses occur?

Accepted Answer

A)  twice every year 
B)  three times every year 
C)  once per month 
D)  twice every 11 months 
E)  once every 11 years 
A)  twice every year 
B)  three times every year 
C)  once per month 
D)  twice every 11 months 
E)  once every 11 years

Question 11

The apparent path of the Sun across the celestial sphere over the course of a year is called the:

Accepted Answer

A)  prime meridian 
B)  ecliptic 
C)  circumpolar plane 
D)  celestial equator 
E)  eclipse 
A)  prime meridian 
B)  ecliptic 
C)  circumpolar plane 
D)  celestial equator 
E)  eclipse

Question 12

For an observer in the Northern Hemisphere, as he or she looks north, stars travel in a clockwise direction around the north celestial pole over the course of the night.

Accepted Answer

A) True 
 B)False

Question 13

The position of the autumnal equinox lies at the intersection of which two great celestial circles on the celestial sphere?

Accepted Answer

The autumnal equinox

Question 14

How does today's Gregorian calendar differ from the calendars of more ancient civilizations, such as the Chinese, the Egyptians, and the Babylonians?

Accepted Answer

The Gregorian calendar is based on the t

Question 15

A solar-powered spacecraft is traveling through the Moon's shadow. Which part(s), if any, of the Moon's shadow will cause the spacecraft to completely lose power?

Accepted Answer

A)  umbra 
B)  penumbra 
C)  annulus 
D)  both umbra and penumbra 
E)  The spacecraft will never lose power. 
A)  umbra 
B)  penumbra 
C)  annulus 
D)  both umbra and penumbra 
E)  The spacecraft will never lose power.

Question 16

If the Earth's axis were tilted by 5°, instead of its actual tilt, how would the seasons be different than they are currently?

Accepted Answer

A)  The seasons would remain the same. 
B)  Summers would be warmer. 
C)  Winters would last longer. 
D)  Winters would be warmer. 
E)  Summers would last longer. 
A)  The seasons would remain the same. 
B)  Summers would be warmer. 
C)  Winters would last longer. 
D)  Winters would be warmer. 
E)  Summers would last longer.

Question 17

As the month passes, the Moon appears to rise later in the day or night when compared to the previous day. Explain why this happens.

Accepted Answer

In general, objects appear to rise and s

Question 18

No matter where you are on Earth, stars appear to rotate about a point called the:

Accepted Answer

A)  zenith 
B)  celestial pole 
C)  nadir 
D)  meridian 
E)  equinox 
A)  zenith 
B)  celestial pole 
C)  nadir 
D)  meridian 
E)  equinox

Question 19

A partial lunar eclipse occurs when:

Accepted Answer

A)  the Sun appears to go behind the Moon 
B)  the Moon passes through part of the Earth's shadow 
C)  the Moon shadows part of the Sun 
D)  the Earth passes through part of the Moon's shadow 
E)  the Moon passes through part of the Sun's shadow 
A)  the Sun appears to go behind the Moon 
B)  the Moon passes through part of the Earth's shadow 
C)  the Moon shadows part of the Sun 
D)  the Earth passes through part of the Moon's shadow 
E)  the Moon passes through part of the Sun's shadow

Question 20

Earth has an average radius of approximately 6.4 *103 km. What is the average speed, in units of km/s, of the ground at the Earth's equator due to the daily rotation of Earth if there are 8.64 *104 seconds per day?

Accepted Answer

Here the students need to convert the ra

Exam 2: Patterns in the Skymotions of Earth

Figure 2 -In Figure 2, at which position must the moon be located in order for a lunar eclipse to occur?

The ecliptic is defined by the motion of _________ in the sky.

The seasons on Earth are caused by the change in distance between the Sun and Earth.

What time does a third-quarter Moon rise?

Consider an observer located on the equator. If the observer sees a star directly overhead at 8 P.M., where will that star be located in the night sky at midnight? How far above the horizon will it be or will it have set?

How far away on average is the Earth from the Sun?

At what latitude is the north celestial pole located at your zenith?

Earth experiences seasons due to the tilt of its axis. What are two consequences of this tilt that contribute to the seasons?

Solar and lunar eclipses are rare because:

Approximately how often do lunar eclipses occur?

The apparent path of the Sun across the celestial sphere over the course of a year is called the:

For an observer in the Northern Hemisphere, as he or she looks north, stars travel in a clockwise direction around the north celestial pole over the course of the night.

The position of the autumnal equinox lies at the intersection of which two great celestial circles on the celestial sphere?

How does today's Gregorian calendar differ from the calendars of more ancient civilizations, such as the Chinese, the Egyptians, and the Babylonians?

A solar-powered spacecraft is traveling through the Moon's shadow. Which part(s), if any, of the Moon's shadow will cause the spacecraft to completely lose power?

If the Earth's axis were tilted by 5°, instead of its actual tilt, how would the seasons be different than they are currently?

As the month passes, the Moon appears to rise later in the day or night when compared to the previous day. Explain why this happens.

No matter where you are on Earth, stars appear to rotate about a point called the:

A partial lunar eclipse occurs when:

Earth has an average radius of approximately 6.4 *103 km. What is the average speed, in units of km/s, of the ground at the Earth's equator due to the daily rotation of Earth if there are 8.64 *104 seconds per day?

Why Learn Astronomy

Motion of Astronomical Bodies

Gravity and Orbits

Light

The Tools of the Astronomer

The Birth and Evolution of Planetary Systems

The Terrestrial Planets and Earths Moon

Atmospheres of the Terrestrial Planets

Worlds of Gas and Liquid the Giant Planets

Planetary Adornmentsmoons and Rings

Dwarf Planets and Small Solar System Bodies

Taking the Measure of Stars

Our Starthe Sun

Star Formation and the Interstellar Medium

Evolution of Low-Mass Stars

Evolution of High-Mass Stars

Relativity and Black Holes

The Expanding Universe

Galaxies

The Milky Waya Normal Spiral Galaxy

Modern Cosmology

Large-Scale Structure in the Universe

Life

Filters

Earth has an average radius of approximately 6.4 10³ km. What is the average speed, in units of km/s, of the ground at the Earth's equator due to the daily rotation of Earth if there are 8.64 10⁴ seconds per day?