AnswersAZ-Earth and Space Science AThe Earth-Sun-Moon System

The Earth-Sun-Moon System Answers

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1
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Study the image.

Question illustration
A
3 and 5
B
5 and 9
C
6 and 12
D
9 and 12
2
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Why do lunar and solar eclipses not happen every month?

A
Eclipses only occur during full and new moons.
B
Earth rotates around its axis faster than the moon.
C
The moon and Earth only travel through the penumbras.
D
The tilt of the moon’s axis does not allow for monthly alignment.
3

During which phase of the moon does a lunar eclipse occur?

A
full moon
B
third quarter
C
waxing gibbous
D
waning crescent
4

During which moon phase do spring tides occur?

A
new moon and full moon
B
first quarter and third quarter
C
waxing gibbous and waning gibbous
D
waxing crescent and waning crescent
5

During which phase does Earth see more than half of the moon’s surface?

A
first quarter
B
third quarter
C
waxing gibbous
D
waning crescent
6

How often do spring and neap tides occur?

A
twice a day
B
twice a month
C
every 27.3 days
D
every 24 hours
7

How long does it take for the moon to complete one revolution around Earth?

A
14 days
B
24 hours
C
365 days
D
27.3 days
8

Look at the diagram of a solar eclipse.

Question illustration
A
1
B
2
C
3
D
4
9

In which direction does the Sun appear to move across the sky?

A
from west to east
B
from east to west
C
from north to south
D
from south to north
10

During which phase of the moon do neap tides occur?

A
full
B
gibbous
C
new
D
quarter

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