Question 1

During an annular eclipse,the moon's umbral shadow is too

Accepted Answer

A)  bright to produce a total solar eclipse. 
B)  faint to produce a total solar eclipse. 
C)  wide to produce a total solar eclipse. 
D)  long to produce a total solar eclipse. 
E)  short to produce a total solar eclipse. 
A)  bright to produce a total solar eclipse. 
B)  faint to produce a total solar eclipse. 
C)  wide to produce a total solar eclipse. 
D)  long to produce a total solar eclipse. 
E)  short to produce a total solar eclipse.

Question 2

A lunar eclipse occurs when

Accepted Answer

A)  the sun passes between Earth and Earth's moon. 
B)  Earth passes between the Earth's moon and the sun. 
C)  the Earth's moon passes between Earth and the sun. 
A)  the sun passes between Earth and Earth's moon. 
B)  Earth passes between the Earth's moon and the sun. 
C)  the Earth's moon passes between Earth and the sun.

Question 3

A lunar eclipse can only occur during the full phase.

Accepted Answer

A) True 
 B)False

Question 4

A dime is 1.8 cm in diameter.Earth's moon is 3.844*1010 cm from Earth and has a diameter of 3.76*108 cm.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)  200 cm 
B)  2 cm 
C)  0.2 cm 
D)  2 AU 
E)  2 LY 
A)  200 cm 
B)  2 cm 
C)  0.2 cm 
D)  2 AU 
E)  2 LY

Question 5

During a total lunar eclipse

Accepted Answer

A)  the moon must be new. 
B)  the observer must be in the path of totality. 
C)  the moon will glow a coppery red. 
D)  the moon must be at its greatest distance from Earth. 
E)  the date must be near the date of one of the equinoxes. 
A)  the moon must be new. 
B)  the observer must be in the path of totality. 
C)  the moon will glow a coppery red. 
D)  the moon must be at its greatest distance from Earth. 
E)  the date must be near the date of one of the equinoxes.

Question 6

The full Moon always occurs

Accepted Answer

A)  on the 15th of ever month. 
B)  when the Moon is at right angles to the direction of the Sun. 
C)  when the Moon is closer to Sun than the Earth is. 
D)  when the Moon is directly opposite the position of the Sun. 
A)  on the 15th of ever month. 
B)  when the Moon is at right angles to the direction of the Sun. 
C)  when the Moon is closer to Sun than the Earth is. 
D)  when the Moon is directly opposite the position of the Sun.

Question 7

The ________ cycle of the phases of the moon is due to its spherical shape and the ______ shining on it from different directions..

Accepted Answer

A)  monthly; Earth 
B)  yearly; Earth 
C)  monthly; sun 
D)  yearly; sun 
A)  monthly; Earth 
B)  yearly; Earth 
C)  monthly; sun 
D)  yearly; sun

Question 8

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 9

A solar eclipse that occurs when the moon's umbra does not reach Earth's surface is called

Accepted Answer

A)  a total solar eclipse. 
B)  a partial solar eclipse. 
C)  an annular solar eclipse. 
D)  a penumbral solar eclipse. 
E)  an umbral solar eclipse. 
A)  a total solar eclipse. 
B)  a partial solar eclipse. 
C)  an annular solar eclipse. 
D)  a penumbral solar eclipse. 
E)  an umbral solar eclipse.

Question 10

A solar eclipse occurs when

Accepted Answer

A)  the sun passes between Earth and Earth's moon. 
B)  Earth passes between the Earth's moon and the sun. 
C)  the Earth's moon passes between Earth and the sun. 
A)  the sun passes between Earth and Earth's moon. 
B)  Earth passes between the Earth's moon and the sun. 
C)  the Earth's moon passes between Earth and the sun.

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

If the Moon's orbital plane was aligned with the celestial equator we could

Accepted Answer

A)  have eclipses every month. 
B)  never have eclipses. 
C)  have eclipses only at solstice. 
D)  have eclipses only at the equinoxes. 
A)  have eclipses every month. 
B)  never have eclipses. 
C)  have eclipses only at solstice. 
D)  have eclipses only at the equinoxes.

Question 13

An eclipse of the moon (lunar eclipse)as seen from the earth,happens when ...

Accepted Answer

A)  the hot luminous moon suddenly cools and stops emitting light. 
B)  the moon passes between the earth and the sun. 
C)  the earth is between the moon and the sun. 
D)  the moon is 90 degrees from the direction of the sun. 
A)  the hot luminous moon suddenly cools and stops emitting light. 
B)  the moon passes between the earth and the sun. 
C)  the earth is between the moon and the sun. 
D)  the moon is 90 degrees from the direction of the sun.

Question 14

If the moon enters Earth's shadow but does not reach the umbra,the eclipse is termed

Accepted Answer

A)  partial. 
B)  umbral. 
C)  penumbral. 
D)  total. 
E)  annular. 
A)  partial. 
B)  umbral. 
C)  penumbral. 
D)  total. 
E)  annular.

Question 15

The figure shows the ______ and _____ moon phases..

Accepted Answer

A)  crescent; first quarter 
B)  new; new 
C)  crescent; full 
D)  first quarter; full 
A)  crescent; first quarter 
B)  new; new 
C)  crescent; full 
D)  first quarter; full

Question 16

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.

Exam 3: Cycles of the Moon

During an annular eclipse,the moon's umbral shadow is too

A lunar eclipse occurs when

A lunar eclipse can only occur during the full phase.

A dime is 1.8 cm in diameter.Earth's moon is 3.844*1010 cm from Earth and has a diameter of 3.76*108 cm.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?

During a total lunar eclipse

The full Moon always occurs

The ________ cycle of the phases of the moon is due to its spherical shape and the ______ shining on it from different directions..

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

A solar eclipse that occurs when the moon's umbra does not reach Earth's surface is called

A solar eclipse occurs when

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

If the Moon's orbital plane was aligned with the celestial equator we could

An eclipse of the moon (lunar eclipse)as seen from the earth,happens when ...

If the moon enters Earth's shadow but does not reach the umbra,the eclipse is termed

The figure shows the ______ and _____ moon phases..

A solar or lunar eclipse will occur

Here and Now

A Users Guide to the Sky

The Origin of Modern Astronomy

Gravity

Light and Telescopes

Atoms and Spectra

The Sun

The Family of Stars

The Interstellar Medium

The Formation and Structure of Stars

Stellar Evolution

The Deaths of Stars

Neutron Stars and Black Holes

The Milky Way Galaxy

Galaxies

Active Galaxies and Supermassive Black Holes

Modern Cosmology

The Origin of the Solar System

Earth: the Standard of Comparative Planetology

The Moon and Mercury: Comparing Airless Worlds

Venus and Mars

Jupiter and Saturn

Uranus,neptune,and the Kuiper Belt

Meteorites,asteroids,and Comets

Astrobiology: Life on Other Worlds

Filters

A dime is 1.8 cm in diameter.Earth's moon is 3.84410¹⁰ cm from Earth and has a diameter of 3.7610⁸ cm.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 __ cycle of the phases of the moon is due to its spherical shape and the shining on it from different directions..

The figure shows the __ and _ moon phases..