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WorksheetsAstronomy Review
Total questions: 46
Worksheet time: 44mins
Name
Class
Date
1.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Irrational
2.
Which star is the coldest?
a)
yellow star
b)
red star
c)
orange star
d)
blue star
3.
Our sun is currently in this star stage.
a)
Protostar
b)
Super Red Giant
c)
Main Sequence
d)
Red Giant
4.
In the diagram given, what happens as we move to the left?
a)
Stars Get Larger
b)
Stars get Colder
c)
Stars get hotter
5.
A supernova is the explosion of a dying
a)
high-mass star.
b)
low-mass star.
c)
medium-mass star.
d)
protostar.
6.
A star is born when
a)
a nebula expands.
b)
helium and oxygen combine.
c)
nuclear fusion starts.
d)
a protostar begins to cool.
7.
All stars begin as part of a large cloud of gas and dust called
a)
a nebula.
b)
a black hole.
c)
a protostar.
d)
elliptical galaxy.
8.
Our solar system is located in the
a)
Milky Way galaxy.
b)
Andromeda galaxy.
9.
A(n) _____ galaxy has a characteristic pinwheel shape.
a)
spiral
b)
elliptical
c)
open cluster
d)
globular
10.
A galaxy that does not have a regular shape is classified as a(n) _____ galaxy.
a)
spiral
b)
open cluster
c)
globular
d)
irregular
11.
Characteristics used to classify stars include
a)
distance, size, and color.
b)
size, distance, and brightness.
c)
color, brightness, and distance.
d)
size, brightness, and temperature.
12.
The lifetime of a star depends on its
a)
temperature.
b)
absolute brightness.
c)
mass.
d)
apparent brightness.
13.
The Hertzsprung-Russell diagram shows that main-sequence stars
a)
are mostly hot and dim.
b)
are mostly cool and bright.
c)
increase in brightness as they increase in temperature.
d)
decrease in brightness as they increase in temperature.
14.
Astronomers typically measure distances to stars in units called
a)
kilometers.
b)
light-years.
c)
parallax.
d)
electromagnetic spectrum.
15.
The brightness of a star as seen from Earth is its
a)
apparent brightness.
b)
absolute brightness.
c)
parallax.
d)
reflective brightness.
16.
What are very large stars called ?
a)
supergiant stars
b)
big stars
c)
white dwarfs
17.
A star's ___________________ is the brightness the star would have if it were at a standard distance from Earth.
a)
apparent brightness
b)
absolute brightness
18.
A graph relating the surface temperatures and absolute brightness of stars.
a)
spectrograph
b)
Hertzsprung-Russell diagram
19.
True or False:
A star is born when gas and dust from a nebula become so dense and hot that nuclear fusion starts.
A star is born when gas and dust from a nebula become so dense and hot that nuclear fusion starts.
a)
True
b)
False
20.
A collection of stars, dust, and gas bound together by gravity
a)
galaxy
b)
milky way
c)
solar system
d)
universe
21.
the average distance between the Earth and the sun; approximately 150 million kilometers
a)
astronomical unit
b)
light year
c)
parsec
d)
electromagnetic spectrum
22.
Process in which lighter element like hydrogen are forced to combine or fuse together to form heavier elements like helium
a)
nuclear fusion
b)
zenith
c)
galaxy
d)
luminosity
23.
What are light years used for in space?
a)
to measure time in takes to get to a star
b)
to measure distance between objects
c)
to measure the temperature of stars
d)
to measure time it takes for our solar system to spin
24.
At which stage does a star swell up many times larger than its normal size?
a)
Protostar
b)
Nebula
c)
Main Sequence
d)
Red Giant
25.
As a whole, Giants are considered hotter than White Dwarfs.
a)
True
b)
False
26.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Irrational
27.
The distance between the Earth and the Sun one ______________
a)
astronomical unit.
b)
Light-year
c)
kilometer
d)
meter
28.
What is Apparent Magnitude?
a)
The magnitude of a celestial object as it is actually measured from the earth.
b)
The magnitude (brightness) of a celestial object as it would be seen at a standard distance of 10 parsecs
29.
What is absolute Magnitude?
a)
The magnitude (brightness) of a celestial object as it would be seen at a standard distance of 10 parsecs
b)
The magnitude of a celestial object as it is actually measured from the earth.
30.
What are the reasons for the season?
a)
Earth's tilt & rotation
b)
Earth's tilt & revolution
c)
Earth's rotation & rovolution
d)
Earth's tilt & resolution
31.
The hemisphere where you live
a)
equator
b)
southern
c)
northern
d)
eastern
32.
What causes there to be longer number of hours of light during the summer
a)
Earth tilt's away from the sun in summer
b)
Earth's revolves slower in summer
c)
Earth tilts toward the sun in summer
d)
Earth is closer to the sun
33.
Why is it warmer in the summer?
a)
Closer to the sun
b)
More direct light from Earth's tilt
c)
Stronger light from the sun
d)
Earth spins slower
34.
Why is the Equator warmest?
a)
Because it is closest to the sun.
b)
Because it receives the most direct sunlight
c)
Because no clouds form here.
d)
Because it is far from the sun
35.
If its ____ in the Northern hemisphere, then its fall in the Southern hemisphere.
a)
spring
b)
summer
c)
fall
d)
winter
36.
What causes more heat, indirect sunlight or direct sunlight?
a)
indirect
b)
direct
37.
What does the rotation of the earth cause us to experience?
a)
seasons
b)
year
c)
day & night
d)
eclipse
38.
How long does it take the earth to revolve once around the sun?
a)
12 hours
b)
24 hours
c)
30 days
d)
365.25 days
39.
What is the longest day of the year?
a)
winter solstice
b)
summer solstice
c)
fall equinox
d)
spring equinox
40.
When are the equinoxes?
a)
June & December
b)
July & January
c)
April & October
d)
March & September
41.
Earth's axis is tilted at -
a)
23.5 degrees
b)
33.5 degrees
c)
28 degrees
d)
90 degrees
42.
Why is the Equator warmest?
a)
Because it is closest to the sun.
b)
Because it receives the most direct sunlight
c)
Because no clouds form here.
d)
Because it is far from the sun
43.
In the summer many people enjoy going to the beach. There is a beautiful beach in Argentina, which is located in the Southern Hemisphere. Which diagram shows the position of Earth when it is summer in Argentina?
a)
A
b)
B
c)
C
d)
D
44.
What two main things keep the Moon and the Earth in orbit?
a)
gravity and Newton's law
b)
gravity and distance
c)
gravity and inertia
d)
mass and volume
45.
Which season is taking place in the Southern Hemisphere in Position 1?
a)
Winter
b)
Spring
c)
Summer
d)
Fall
46.
Which season would occur 7 months after position 2?
a)
Winter
b)
Spring
c)
Summer
d)
Fall
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