WorksheetsAstronomy Chapter 1
Total questions: 36
Worksheet time: 18mins
Name
Class
Date
1.
Tides are caused mainly by.....
a)
Earth's rotation on its axis
b)
differences in how much the sun pulls on different parts of Earth
c)
strong winds blowing water onto coasts
d)
differences in how much the moon pulls on different parts of Earth
2.
Maria on the moon's surface were formed by ancient ...
a)
oceans
b)
lava flows
c)
ice flows
d)
meteoroid impacts
3.
Galileo saw that much of the moon's surface is covered with round pits called...
a)
highlands
b)
seas
c)
craters
d)
maria
4.
How large is the moon compared to Earth?
a)
about the same diameter as Earth
b)
about one-half the diameter of Earth
c)
about one-fourth the diameter of Earth
d)
about one-eighth the diameter of Earth
5.
Scientists think the moon was formed when...
a)
a large object struck Earth, and ejected material from collision combined
b)
gravitational forces attracted a moon formed elsewhere in space
c)
meteoroids collected and solidified within the pull of Earth's gravity
d)
gases from Earth escaped from the atmosphere and condensed in space
6.
An equinox occurs when..
a)
neither end of Earth's axis is tilted toward or away from the sun
b)
the north end of Earth's axis is tilted away from the sun
c)
the north end of Earth's axis is tilted toward the sun
d)
Earth's axis is parallel to the sun's rays
7.
Because the moon rotates once for each revolution around Earth...
a)
you see some phases more than others
b)
a different side of the moon faces Earth each day
c)
you never see the far side of the moon from Earth
d)
the far side of the moon is visible only during the full moon phase
8.
You are less likely to see a total solar eclipse than a total lunar eclipse because...
a)
the moon's shadow covers all of Earth during a solar eclipse
b)
new moon phases occur less often than full moon phases
c)
only people on the daytime side of Earth can see a solar eclipse
d)
the moon's umbra only covers a small area on Earth's surface
9.
When do neap tides occur?
a)
at new moon
b)
when the sun's pull is in the same direction as the moon's
c)
when the sun's pull is at right angles to the moon's
d)
at full moon
10.
Earth's rotation takes about..
a)
365 days
b)
6 months
c)
24 hours
d)
1 month
11.
Day and night are caused by...
a)
the tilt of Earth's axis
b)
Earth's revolution around the sun
c)
eclipses
d)
Earth's rotation on its axis
12.
One complete revolution of Earth around the sun takes about....
a)
one rotation
b)
one season
c)
one year
d)
one eclipse
13.
Earth has seasons because
a)
it rotates on its axis
b)
the distance between Earth and the sun changes
c)
its axis is tilted as it moves around the sun
d)
the temperature of the sun changes
14.
When the north end of Earth's axis is tilted toward the sun, North America will experience...
a)
more indirect rays and shorter days
b)
more indirect rays and longer days
c)
more direct rays and shorter days
d)
more direct rays and longer days
15.
For a solar eclipse to occur,
a)
the sun must be directly between Earth and the moon
b)
the moon must be directly between Earth and the sun
c)
the moon must be directly behind Earth
d)
Earth must be directly between the sun and the moon
16.
During what phase of the moon can a lunar eclipse occur?
a)
new moon
b)
first quarter
c)
waxing gibbous
d)
full moon
17.
When are tides highest?
a)
during the moon's first quarter phase
b)
when the sun, Earth, and the moon are nearly in a line
c)
during the moon's third quarter phase
d)
when the moon is at a right angle to the sun
18.
The two factors that combine to keep Earth and the moon in their orbits are..
a)
gravity and orbital speed
b)
orbital speed and mass
c)
mass and inertia
d)
gravity and inertia
19.
All objects are attracted to each other by the force of....
a)
weight
b)
mass
c)
inertia
d)
gravity
20.
The strength of the force of gravity depends on....
a)
the masses of the objects and their speeds
b)
the masses of the objects and the distance between them
c)
the weight of the objects and their speeds
d)
the masses of the objects and their weights
21.
The temperature of the moon's surface varies greatly from day to night because the moon has...
a)
maria
b)
no atmosphere
c)
many craters
d)
highlands
22.
A total solar eclipse is visible from
a)
all over Earth
b)
only within the moon's umbra
c)
only within the moon's penumbra
d)
only the dark side of Earth
23.
Day and night are caused by Earth's revolution on its axis.
a)
True
b)
False
24.
The phases of the moon depend on how much of the lighted side of the moon can be seen from Earth.
a)
True
b)
False
25.
A solar eclipse occurs when the moon moves directly between the sun and Earth.
a)
True
b)
False
26.
A tide with the greatest difference between low and high tides is called a neap tide.
a)
True
b)
False
27.
Maria are flat areas, once flooded with lava, on the moon's surface.
a)
True
b)
False
28.
During a solar eclipse, Earth blocks sunlight from reaching the moon.
a)
True
b)
False
29.
The moon formed after a planet-sized object collided with the sun.
a)
True
b)
False
30.
You can see the solar corona from Earth during a _________ eclipse.
a)
Solar
b)
Lunar
c)
big
d)
small
31.
The moon rotates once on its axis in the same amount of time that it ____________ once around Earth.
a)
rotates
b)
revolves
c)
tilts
d)
craters
32.
The tendency for an object in motion to remain in motion is called......
a)
gravity
b)
tilt
c)
inertia
d)
rotation
33.
Earth rotates on its axis about once every______ hours.
a)
36
b)
24
c)
12
d)
48
34.
The moon can be seen from Earth because _______ reflects off the moon's surface.
a)
light
b)
shadows
c)
rays
35.
The darkest part of the moon's shadow is called the.....
a)
penumbra
b)
umbra
c)
lunar
d)
rotation
36.
The times when day and night are of equal length are called...
a)
equinox
b)
penumbra
c)
umbra
d)
rotation
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