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WorksheetsAstronomy Unit Test Review
Total questions: 28
Worksheet time: 9mins
Name
Class
Date
1.
What is inertia?
a)
The tendency of an object to be attracted to another object
b)
The tendency of an object to resist a change in motion
c)
The tendency for an object to revolve in a circle
d)
The tendency of an object to revolve in an oval shape
2.
Which of these best describes the concept of inertia?
a)
A force that attracts objects with mass
b)
the tendency of an object to float in water
c)
a force created when surfaces are in contact
d)
The tendency of an object to resist a change in motion
3.
What changes when the pull of gravity changes?
a)
Mass
b)
weight
c)
Volume
d)
nothing changes
4.
What affects the force of gravity between two objects?
a)
Their mass and the distance between them
b)
The distance between them
c)
The sum of their masses
d)
The mass of the large object
5.
Which choice shows the objects in order from LARGEST to smallest
a)
solar system, galaxy, sun, universe, planet
b)
planet, galaxy, universe, solar system, sun
c)
universe, galaxy, solar system, sun, planet
d)
galaxy, universe, solar system, sun, planet
6.
Edwin Hubble discovered the the universe is expanding. Which scientific theory does this fact support?
a)
Geocentric Model
b)
Gravitational Pull
c)
Heliocentric Model
d)
The Big Bang
7.
How long does the Earth take to orbit or revolve once around the sun?
a)
day
b)
month
c)
week
d)
year
8.
Which of these would be shorter if the Earth rotated faster?
a)
day
b)
month
c)
week
d)
year
9.
What is the effect of the gravitational attraction between the sun and the Earth on Earth's orbit?
a)
It makes the orbit follow a straight path
b)
It makes the orbit follow a curved path
c)
It has no effect on the Earth's orbit
d)
It destroys the orbit
10.
To what degree is the Earth's axis tilted?
a)
90
b)
45.5
c)
23.5
d)
0
11.
What does the tilt of the Earth's axis cause?
a)
Seasons
b)
Phases of the moon
c)
Solar Eclipse
d)
Lunar Eclipse
12.
What is the shape of the Earth's orbit around the sun?
a)
sphere
b)
ellipse
c)
circular
d)
crescent
13.
The position of the sun in the sky changes during the YEAR because of
a)
The Earth's rotation on its tilted axis
b)
The Earth's revolution on its tilted axis
c)
Both choices are correct
d)
Both choices are not correct
14.
When the northern hemisphere is tilted AWAY from the sun, what season is it in North America?
a)
summer
b)
winter
c)
spring
d)
fall
15.
The idea that the Solar System revolved around the EARTH is called the
a)
heliocentric theory
b)
suncentric theory
c)
geocentric theory
d)
astrbcentric theory
16.
The CURRENT theory about the central point of the solar system states that all planets revolve around the SUN. We call this the
a)
heliocentric theory
b)
suncentric theory
c)
geocentric theory
d)
astrocentric theory
17.
If the force of gravity between Earth and the Sun was greater than Earth's inertia, what would happen to Earth?
a)
Earth would fall into the sun
b)
Earth would stop moving
c)
Earth would escape into space
d)
The sun would fall into the Earth
18.
About how long does the moon take to orbit the Earth?
a)
a day
b)
a week
c)
a year
d)
a month
19.
What is the difference between a meteor and a meteorite?
a)
Meteors are faster than meteorites
b)
Meteorites only exists in other galaxies
c)
Meteors fall to Earth, but meteorites burn up in the atmosphere
d)
Meteors burn up in the atmosphere, but meteorites fall to Earth
20.
To have an eclipse, the sun, moon, and Earth must be
a)
at right angles
b)
in direct alignment
c)
with the sun always in the middle
d)
with the Earth always in the middle
21.
Solar eclipses only happen during which moon phase?
a)
full moon
b)
new moon
c)
waxing gibbous
d)
waning crescent
22.
Eclipses do not happen each month because of
a)
the asteroid belt
b)
the full moon
c)
the Earth's rotation
d)
the tilt of the moon's orbit
23.
Waning gibbous is a time when the moon's light appears to be
a)
getting bigger and more than 1/2 lit
b)
getting smaller and more than 1/2 lit
c)
getting bigger and less than 1/2 lit
d)
getting smaller and less than 1/2 lit
24.
________ is the waxing moon phase in which 1/2 of the moon's surface can be seen from Earth.
a)
first quarter
b)
waxing gibbous
c)
last or third quarter
d)
waxing crescent
25.
Which word describes the moon phases where the bright part of the moon decreases as time passes?
a)
waxing
b)
gibbous
c)
waning
d)
crescent
26.
The terrestrial planets are
a)
Jupiter, Saturn, Uranus, Neptune
b)
Mercury, Uranus, Earth, Mars
c)
Venus, Earth, Mars, Jupiter
d)
Mercury, Venus, Mars, Earth
27.
The gas giants are the outer planets. Which planets are the outer planets?
a)
Jupiter, Saturn, Uranus, Earth
b)
Jupiter, Venus, Saturn, Neptune
c)
Saturn, Uranus, Neptune, Jupiter
d)
Neptune, Pluto, Mars, Jupiter
28.
What keeps Earth in orbit around the Sun?
a)
The Sun’s gravity and Earth’s inertia
b)
The Sun’s mass and Earth’s gravity
c)
The Earth’s gravity and Sun’s inertia
d)
The Earth’s mass and Sun’s gravity
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