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Worksheets8.8 A Components of the Universe
Total questions: 25
Worksheet time: 21mins
Name
Class
Date
1.
Which celestial body is know for its intense pull of gravity?
a)
nebula
b)
black hole
c)
Super Giant
d)
A Galaxy
2.
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.
3.
The universe has may different components. Which list places four components of the universe in the most likely order from smallest to largest.
a)
Planets, Stars, Galaxies, Nebulae
b)
Nebulae, Stars, Planets, Galaxies
c)
Galaxies, Stars, Planets, Nebulae
d)
Planets, Stars, Nebulae, Galaxies
4.
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.
5.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Irrational
6.
A system of stars, gas, dust, and dark matter bound together by gravity is called ---
a)
an asteroid
b)
a nebula
c)
a galaxy
d)
a moon
7.
Stars are made up mostly of which two elements?
a)
Hydrogen and Helium
b)
Mercury and Strontium
c)
Iron and Potassium
d)
Krypton and Bismuth
8.
The stars and all the other matter in a galaxy are held together by which of the following?
a)
Dark Matter
b)
Inertia
c)
gravity
d)
magnetism
9.
Galaxies are classified by their shapes into all of the following types except
a)
spiral galaxy
b)
irregular galaxy
c)
oblong galaxy
d)
elliptical galaxy
10.
Which of the following is an accurate description of the relationship between components of the universe?
a)
Stars always contain galaxies
b)
Galaxies contain many stars
c)
Stars contain several nebulae
d)
Nebulae contain many galaxies
11.
Which of the following best describes a star? A star is a celestial body ---
a)
composed of rock and metal with a very high density
b)
that is too big to be an asteroid, but too small to be a planet.
c)
that rotates on an axis and revolves around the Sun
d)
composed of gases that emit light due to nuclear reactions
12.
Which of the following best describes a nebula. A nebula is
a)
a region in the solar system that is occupied by irregularly shaped bodies
b)
a large and icy celestial body with an irregular orbit around the Sun
c)
a natural satellite created by the collision of two large asteroids
d)
an interstellar cloud of dust, hydrogen, helium and other gases
13.
Which of the following best describes a galaxy? A galaxy is ---
a)
A particle of debris in the solar system that does not act as a satellite of any planet
b)
a visible body of liquid or frozen crystal droplets suspended above a planetary surface
c)
a massive system of stars, gas, dust and dark matter bound together by gravity.
d)
the visible path of a meteoroid as it enters Earth's atmosphere
14.
An interstellar cloud of dust and gases that serves as a location for the formation of new stars is
a)
a meteor
b)
a planet
c)
a galaxy
d)
a nebula
15.
Galaxies are classified into all of the following types by their shapes except --
a)
spiral
b)
elliptical
c)
lenticular
d)
crescent
16.
A characteristic of a nebula is that it
a)
is at the center of the solar system
b)
is a region where stars are born
c)
forms halfway through a star's life cycle
d)
has the coolest temperature in space
17.
Which of the following components of the universe is best described as a system of stars, gases, and dust held together by gravity.
a)
a nebula
b)
a planet
c)
a meteor
d)
a galaxy
18.
Which of the following components of the universe is best described as an interstellar cloud of dust and gases where stars are formed?
a)
a nebula
b)
a planet
c)
a meteor
d)
a galaxy
19.
Why does Earth get more energy from the sun than from all the other stars in the universe combined?
a)
The sun is much larger than other stars.
b)
The sun is much hotter than the other stars.
c)
The sun is much more dense
d)
The sun is much closer than the other stars.
20.
Which of these correctly compares the masses of different objects in the universe?
a)
A moon has less mass than a star and more mass than the planet it orbits.
b)
A planet has less mass than a galaxy and more mass than the star it orbits.
c)
A galaxy has less mass than a moon and more mass than a planet.
d)
A star has less mass than a galaxy and more mass than a planet.
21.
Which term would be considered the smallest object?
a)
Sun
b)
Supercluster
c)
Galaxy
d)
Universe
22.
A large cloud of dust and gas
a)
black hole
b)
nebula
c)
Galaxy
d)
Supercluster
23.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Irrational
24.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Irrational
25.
What type of galaxy is the Milky Way?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Irrational
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