Question 1

The chromosphere is often marked by eruptions on the solar surface called ____.

Accepted Answer

A)  solar flares 
B)  prominences 
C)  solar nodes 
D)  diamond rings 
E)  coronal mass ejections 
A)  solar flares 
B)  prominences 
C)  solar nodes 
D)  diamond rings 
E)  coronal mass ejections

Question 2

How would you explain to your friend, who knows nothing about astronomy, the way to predict the next eclipse of the Sun?

Accepted Answer

There are two conditions for an eclipse

Question 3

What is the safest way or method to observe a solar eclipse?

Accepted Answer

A)  using a telescope 
B)  wearing  sunglasses 
C)  by observing with your naked eyes 
D)  through a pinhole projection 
E)  through a UV filter held up to the sky 
A)  using a telescope 
B)  wearing  sunglasses 
C)  by observing with your naked eyes 
D)  through a pinhole projection 
E)  through a UV filter held up to the sky

Question 4

What does a waning crescent moon mean?

Accepted Answer

A)  The changing Moon between full moon and third quarter 
B)  The changing Moon between third quarter and new moon 
C)  The changing Moon between first quarter and full moon 
D)  The changing Moon between new moon and first quarter 
E)  The changing Moon between first and third quarters 
A)  The changing Moon between full moon and third quarter 
B)  The changing Moon between third quarter and new moon 
C)  The changing Moon between first quarter and full moon 
D)  The changing Moon between new moon and first quarter 
E)  The changing Moon between first and third quarters

Question 5

What is the length of time half of the Moon stays in sunlight per full rotation?

Accepted Answer

A)  29.53 days 
B)  27.3 days 
C)  two weeks 
D)  one month 
E)  two months 
A)  29.53 days 
B)  27.3 days 
C)  two weeks 
D)  one month 
E)  two months

Question 6

A lunar eclipse can only occur when the Moon is ____

Accepted Answer

A)  full 
B)  new 
C)  waxing 
D)  waning 
E)  rising 
A)  full 
B)  new 
C)  waxing 
D)  waning 
E)  rising

Question 7

What are the two parts of a shadow during an eclipse?

Accepted Answer

A)  total and partial 
B)  apogee and perigee 
C)  sidereal and synodic 
D)  waxing and waning 
E)  umbra and penumbra 
A)  total and partial 
B)  apogee and perigee 
C)  sidereal and synodic 
D)  waxing and waning 
E)  umbra and penumbra

Question 8

When the Moon is totally eclipsed, the Moon is illuminated by some sunlight reflected by Earth's atmosphere.

Accepted Answer

A) True 
 B)False

Question 9

In most months, there are no eclipses.

Accepted Answer

A) True 
 B)False

Question 10

What creates a total lunar eclipse?

Accepted Answer

A)  The Sun passes completely through Earth's umbra. 
B)  The Moon passes completely through Earth's umbra. 
C)  The Moon passes through some of Earth's penumbra. 
D)  The Earth passes completely through the Moon's umbra. 
E)  The Earth passes through some of the Moon's penumbra. 
A)  The Sun passes completely through Earth's umbra. 
B)  The Moon passes completely through Earth's umbra. 
C)  The Moon passes through some of Earth's penumbra. 
D)  The Earth passes completely through the Moon's umbra. 
E)  The Earth passes through some of the Moon's penumbra.

Question 11

To see a solar eclipse, you have to be in Earth's shadow.

Accepted Answer

A) True 
 B)False

Question 12

Eclipses can occur only when, viewed from Earth, the Sun is near one of the _______________. of the Moon's orbit.

Accepted Answer

The answer of Eclipses can occur only when, viewed from...

Question 13

The Moon moves slowly against the background of the constellations.

Accepted Answer

A) True 
 B)False

Question 14

If eclipses occur in repeatable patterns, then explain why an eclipse is not visible from the same place on Earth after one Saros cycle.

Accepted Answer

Although the eclipse geometry repeats al

Question 15

A(n) _______________ can occur only at a full Moon if the Moon's path carries it through the shadow of Earth.

Accepted Answer

The answer of A(n) _______________ can occur only at a...

Question 16

What are the two conditions for an eclipse?

Accepted Answer

The Sun must be near one of th

Question 17

What are three common misconceptions about the Moon and how would you provide the correct explanation for those misconceptions?

Accepted Answer

Misconception: the "dark side of the Moo

Question 18

Explain why "the dark side of the Moon" is an incorrect statement.

Accepted Answer

As the Moon orbits Earth, it rotates to

Question 19

A solar eclipse can only occur when the Moon is ____

Accepted Answer

A)  full 
B)  new 
C)  waning 
D)  waxing 
E)  rising 
A)  full 
B)  new 
C)  waning 
D)  waxing 
E)  rising

Question 20

What astronomical period takes 18 years 11 1/3 days to complete?

Accepted Answer

A)  synodic cycle 
B)  lunar phase cycle 
C)  eclipse season 
D)  sidereal period 
E)  Saros cycle 
A)  synodic cycle 
B)  lunar phase cycle 
C)  eclipse season 
D)  sidereal period 
E)  Saros cycle

Exam 3: Moon Phases and Eclipses

The chromosphere is often marked by eruptions on the solar surface called ____.

How would you explain to your friend, who knows nothing about astronomy, the way to predict the next eclipse of the Sun?

What is the safest way or method to observe a solar eclipse?

What does a waning crescent moon mean?

What is the length of time half of the Moon stays in sunlight per full rotation?

A lunar eclipse can only occur when the Moon is ____

What are the two parts of a shadow during an eclipse?

When the Moon is totally eclipsed, the Moon is illuminated by some sunlight reflected by Earth's atmosphere.

In most months, there are no eclipses.

What creates a total lunar eclipse?

To see a solar eclipse, you have to be in Earth's shadow.

Eclipses can occur only when, viewed from Earth, the Sun is near one of the _______________. of the Moon's orbit.

The Moon moves slowly against the background of the constellations.

If eclipses occur in repeatable patterns, then explain why an eclipse is not visible from the same place on Earth after one Saros cycle.

A(n) _______________ can occur only at a full Moon if the Moon's path carries it through the shadow of Earth.

What are the two conditions for an eclipse?

What are three common misconceptions about the Moon and how would you provide the correct explanation for those misconceptions?

Explain why "the dark side of the Moon" is an incorrect statement.

A solar eclipse can only occur when the Moon is ____

What astronomical period takes 18 years 11 1/3 days to complete?

Here and Now

A Users Guide to the Sky

Origins of Modern Astronomy

Gravity

Light and Telescopes

Atoms and Spectra

The Sun

The Family of Stars

The Interstellar Medium

Formation and Structure of Stars

Stellar Evolution

Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies

Supermassive Black Holes and Active Galaxies

Modern Cosmology

Origin of the Solar System and Extrasolar Planets

Earth the Active Planet

The Moon and Mercury

Venus and Mars

Jupiter and Saturn

Uranus Neptune Pluto and the Kuiper Belt

Meteorites Asteroids and Comets

Astrobiology

Filters