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WorksheetsComponents of the Universe
Total questions: 50
Worksheet time: 42mins
Name
Class
Date
1.
A collection of stars, dust, and gas bound together by gravity is...
a)
Universe
b)
Solar System
c)
Planet
d)
Galaxy
2.
What is a large spherical body that orbits a star?
a)
Meteorite
b)
Black hole
c)
Planet
d)
Nebula
3.
A large cloud of gas and dust in interstellar space; the predecessor to stars...
a)
Constellation
b)
Black hole
c)
Nebula
d)
Galaxy
4.
What is the graph that shows the relations between a star's surface temperature and absolute magnitude?
a)
H-R Diagram
b)
Star Cluster Map
c)
Einstein's Diagram
d)
Newton's Chart of Stars
5.
Space and all the matter and energy in it is...
a)
Universe
b)
Galaxy
c)
Solar System
d)
Ecosystem
6.
What is a large celestial body that is composed of gas and that emits light?
a)
Nebula
b)
Star
c)
Galaxy
d)
Planet
7.
Put the star colors in order from hottest to coolest.
a)
Blue, Red, White, Yellow, Orange,
b)
Red, White, Yellow, Orange, Blue
c)
Blue, White, Yellow, Red, Orange
d)
Blue, White, Yellow, Orange, Red
8.
A galaxy is a large collection of stars, gas and dust. What is responsible for holding the stars, gas, and dust together in a galaxy?
a)
heat
b)
light
c)
gravity
d)
friction
9.
What are the the 3 types of galaxies?
a)
Spiral Galaxies, Regular Galaxies, and Lliptical Galaxies
b)
Spiral Galaxies, Irregular Galaxies, and Elliptical Galaxies
c)
Milky Way, Elliptical Galaxies, and Spiral Galaxies
d)
Milky Way, Elliptical Galaxies, and Irregular Galaxies
10.
What type of galaxy has no defined pattern or shape?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Constellation
11.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Orbital
12.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Irrational
13.
Place these objects in order from smallest to largest.
a)
Planets, solar system, universe, galaxy
b)
Solar system, planets, galaxy, universe
c)
Planets, solar system, galaxy, universe
d)
Galaxy, solar system, planets, universe
14.
What is the name of our galaxy?
a)
Our galaxy is called the Milky Way galaxy
b)
Our galaxy is called the Andromeda galaxy
c)
Our galaxy is called the Grand Spiral galaxy.
d)
Our galaxy is called the Whirlpool galaxy.
15.
How many stars are in a galaxy?
a)
millions or billions
b)
thousands
c)
hundreds
d)
Ten
16.
What are in galaxies?
a)
ice and rock
b)
dust, gas, and stars
c)
stars and ice
d)
water and dust
17.
The Milky Way galaxy is an example of an irregular galaxy
a)
true
b)
false
18.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Orbital
19.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Orbital
20.
Which choice is not a type of galaxy?
a)
Orbital Galaxy
b)
Spiral Galaxy
c)
Elliptical Galaxy
d)
Irregular Galaxy
21.
All stars begin as a __________.
a)
giant
b)
black hole
c)
white dwarf
d)
nebula
22.
Which of the following is the largest?
a)
star
b)
universe
c)
cluster
d)
galaxy
23.
What color is the hottest color of star?
a)
blue
b)
red
c)
purple
d)
black
24.
What is the color of the coolest stars?
a)
Blue
b)
Yellow
c)
Red
d)
Orange
25.
What is the process which causes stars to give off heat?
a)
Blowy gas
b)
Helium conversion
c)
Convection
d)
Nuclear fusion
26.
How many stars do we have in our solar system?
a)
1
b)
Millions
c)
it is impossible to know
d)
Billions
27.
Our Sun is average-sized, average temperature, and middle aged.
a)
False
b)
True
28.
Which category is our Sun located in?
a)
White Dwarfs
b)
Supergiants
c)
Main Sequence
d)
Giants
29.
Compared to the rest of the stars, our sun is considered...
a)
Extremely Large and Cold
b)
Small with a medium temperature
c)
Medium size with medium temperature
d)
Small with a cool temperature
30.
As a whole, Red Giants are considered hotter than White Dwarfs.
a)
True
b)
False
31.
Nebulae are considered "Stellar Nurseries" because...
a)
Planets are created from them
b)
Stars are formed from them
c)
Asteroids are formed from them
d)
Galaxies are created from them
32.
The Hertzprung Russell Diagram consists of two axis that are labelled...
a)
Luminosity and Size
b)
Luminosity and Temperature
c)
Temperature and Age
d)
Temperature and Size
33.
In the diagram given, what happens as we move to the left?
a)
Stars get dimmer
b)
Stars get colder
c)
Stars get hotter
d)
Stars get brighter
34.
In the diagram given, what happens as we move upward?
a)
Stars get dimmer
b)
Stars get colder
c)
Stars get hotter
d)
Stars get brighter
35.
Which star is the coolest?
a)
Yellow Star
b)
Red Star
c)
Orange Star
d)
Blue Star
36.
Which star is the hottest?
a)
Yellow Star
b)
Red Star
c)
Orange Star
d)
Blue Star
37.
What else does the H-R Diagram tell us besides the luminosity and temperature?
a)
Size and color
b)
Location and distance from Earth
c)
Constellation structures
d)
Age
38.
The category that contains the most stars is...
a)
Main Sequence
b)
Supergiants
c)
Giants
d)
White Dwarfs
39.
What is the trend for stars on the Main Sequence on the HR diagram?
a)
As temperature increases, luminosity decreases.
b)
As temperature increases, luminosity increases.
40.
Where is our solar system located within the Milky Way galaxy?
a)
in the center
b)
on the outer edge of an arm
41.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Orbital
42.
Which star has the lowest temperature?
a)
A
b)
B
c)
C
d)
D
43.
About 90 percent of stars on the H-R diagram are ____ stars.
a)
red giant
b)
main sequence
c)
luminosity
d)
supergiants
44.
Use the Hertzsprung-Russell Diagram to answer the following question. Betelgeuse is a _____
a)
Hot and Bright Star
b)
Cool and Bright Star
c)
Hot and Dim Star
d)
Cool and Dim Star
45.
Use the Hertzsprung-Russell Diagram to answer the following question. Sirius B is a _____
a)
Hot and Bright Star
b)
Cool and Bright Star
c)
Hot and Dim Star
d)
Cool and Dim Star
46.
Use the Hertzsprung-Russell Diagram to answer the following question. Spica is a _____
a)
Hot and Bright Star
b)
Cool and Bright Star
c)
Hot and Dim Star
d)
Cool and Dim Star
47.
A Hertzsprung-Russell diagram is shown below.
Based on this diagram, which type of stars would belong to spectral class M and have the highest luminosity?
Based on this diagram, which type of stars would belong to spectral class M and have the highest luminosity?
a)
Main-sequence stars
b)
Giants
c)
White dwarfs
d)
Supergiants
48.
The Milky Way galaxy is described as a disk of stars orbiting a central point on the disk. Which of these best explains why people on Earth cannot see the entire shape of the Milky Way?
a)
Earth is a part of this galaxy
b)
Many more stars exist outside the galaxy
c)
The stars in the center of the galaxy are extremely small.
d)
The center of the galaxy consists of a dense cluster of stars.
49.
Using the HR Diagram: Which star emits the most light?
a)
Rigel
b)
Sirius
c)
The Sun
d)
Alpha Centauri B
50.
Using the HR Diagram: Which of the following stars are not on the Main Sequence?
a)
The sun
b)
Altair
c)
Alpha Centauri B
d)
Sirius B
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