WorksheetsAstronomy & Stars Review
Total questions: 35
Worksheet time: 3hrs 51mins
Name
Class
Date
1.
How old is the universe?
a)
13.7 billion years
b)
2,017 years
c)
13.7 million years
d)
300 million years
2.
Which of the following is NOT true about the big bang theory?
a)
states the the universe began as a small, hot, dense particle
b)
states that the Earth formed in a single instant
c)
states that the particle began with an expansion
d)
it is the most widely believed theory by scientists
3.
What is the current motion of the universe?
a)
unmoving
b)
contracting
c)
expanding
d)
jumping
4.
Which of the following is NOT a piece of evidence that supports the big bang theory?
a)
the amount of hydrogen and helium in the universe
b)
the red shift
c)
cosmic background radiation
d)
global warming
5.
How does cosmic background radiation support the big bang theory?
a)
it is leftover thermal energy, proving that the beginning of the universe was hot
b)
it is light waves that have been stretched out from galaxies that are moving away from us, proving that the universe is expanding
c)
it is leftover thermal energy, proving that the universe was really cold
d)
it is light waves that have been compressed from galaxies that are moving towards us, proving that the universe is not expanding
6.
How does the red shift help support the big bang theory?
a)
it is leftover thermal energy, proving that the beginning of the universe was hot
b)
it is light waves that have been stretched out from galaxies that are moving away from us, proving that the universe is expanding
c)
it is leftover thermal energy, proving that the universe was really cold
d)
it is light waves that have been compressed from galaxies that are moving towards us, proving that the universe is not expanding
7.
How does the amount of hydrogen and helium in the universe help support the big bang theory?
a)
these are the two lightest elements, proving that it was really bright, so only light elements could form
b)
these formed randomly during the expansion of the universe
c)
these are the two lightest elements, proving that the universe was hot and dense for a short amount of time, before it expanded
d)
only these two elements can form in heat, proving it was hot in the beginning
8.
What is matter that does not give off electromagnetic radiation, but has a large gravitational pull?
a)
dark energy
b)
Earth
c)
light and heat
d)
dark matter
9.
What is the force that is causing the expansion of the universe to accelerate?
a)
dark energy
b)
dark matter
c)
gravity
d)
magic
10.
What theory states that if enough dark matter exists, gravity will stop the expansion of the universe, and it will contract until everything comes to a single point?
a)
the big bang
b)
the big freeze
c)
the big crunch
d)
the big rip
11.
The universe is...
a)
a large group of stars, gas and dust held together by gravity
b)
all matter, energy, and space; everything
c)
the Earth, planets, moons and sun
d)
a group of galaxies
12.
A galaxy is...
a)
a large group of stars, gas and dust held together by gravity
b)
all matter, energy, and space; everything
c)
the Earth, planets, moons and sun
d)
a group of galaxies
13.
Which of the following are three examples of different types of galaxies?
a)
regular, Milky Way, spiral
b)
spiral, elliptical, irregular
c)
giant, supergiant, white dwarf
d)
local group, supercluster, regular
14.
Which of the following is NOT true about our own galaxy?
a)
it is called the Milky Way
b)
there are about 200 billion stars in this galaxy
c)
it is a spiral galaxy
d)
it takes about 1 year for our sun to orbit the center of the galaxy
15.
Which is NOT true about a light-year?
a)
it is used to measure distances in space
b)
it is the distance that light travels in one year
c)
it is a unit of distance
d)
it is a unit of time
16.
Put the following in order from smallest to largest:
A. Milky Way galaxy
B. observable universe
C. local group
D. solar system
E. supercluster
F. Earth
G. interstellar neighborhood
A. Milky Way galaxy
B. observable universe
C. local group
D. solar system
E. supercluster
F. Earth
G. interstellar neighborhood
a)
F, D, C, A, E, G, B
b)
F, G, D, C, A, E, B
c)
F, D, G, A, C, E, B
d)
F, G, D, E, C, A, B
17.
What is a huge glowing ball of hot gas, made up of mainly hydrogen and helium?
a)
dark energy
b)
star
c)
dark matter
d)
galaxy
18.
What five characteristics do we use to classify stars?
a)
color, temperature, luminosity, brightness, size
b)
temperature, luminosity, size, age, color
c)
giant, supergiant, white dwarf, neutron star, black hole
d)
luminosity, texture, waves, temperature, shape
19.
What does the color of a star tell us about the star?
a)
the size of the star
b)
the luminosity of the star
c)
the age of the star
d)
the temperature of the star
20.
What does the luminosity of a star tell us about the star?
a)
the size of the star
b)
the luminosity of the star
c)
the age of the star
d)
the temperature of the star
21.
Which type of stars are high in luminosity and low in temperature?
a)
white dwarf
b)
giant
c)
supergiant
d)
main sequence
22.
What color would a star be with a luminosity of 10^-2 and a temperature of 20,000 K?
a)
red
b)
yellow
c)
white
d)
blue
23.
Which of the following statements is NOT true about an H-R diagram?
a)
it helps scientists classify stars
b)
is helps scientists learn how stars change over time
c)
it shows a relationship between the star's temperature and brightness
d)
it is a map that shows where different types of stars are located in the sky
24.
What is a large cloud of gas and dust where stars are made?
a)
galaxy
b)
protostar
c)
nebula
d)
black hole
25.
What is formed when gravity begins pulling some of the gas and dust in the cloud together?
a)
protostar
b)
nebula
c)
giant
d)
main sequence star
26.
When is a star "born"?
a)
after a supernova happens
b)
when a nebula forms
c)
when it reaches a certain age
d)
when nuclear fusion begins
27.
What is our sun classified as?
a)
giant
b)
supergiant
c)
main sequence
d)
white dwarf
28.
What is different about giant and supergiant stars?
a)
nothing, these words mean the same thing
b)
giants are formed from low-mass stars and supergiants are formed from high-mass stars
c)
a giant star is a younger version of a supergiant star
d)
they are made out of different elements
29.
What are stars classified as after they begin to give off heat and light during the process of nuclear fusion?
a)
protostar
b)
neutron star
c)
blackhole
d)
main sequence
30.
Choose the correct order for the life of a low-mass star.
a)
protostar, main sequence, giant, planetary nebula, white dwarf, black dwarf
b)
protostar, main sequence, giant, supergiant, supernova, black hole
c)
protostar, main sequence, giant, supergiant, white dwarf, black dwarf
d)
protostar, main sequence, planetary nebula, black dwarf, white dwarf
31.
Choose the correct order for the life of a high-mass star.
a)
protostar, main sequence, giant, planetary nebula, white dwarf, black dwarf
b)
protostar, main sequence, supergiant, supernova, neutron star OR black hole
c)
protostar, main sequence, supergiant, supernova, neutron star, black hole
d)
protostar, main sequence, giant, supergiant, supernova, black hole
32.
What is NOT true of nuclear fusion?
a)
hydrogen fuses together
b)
helium is created
c)
energy in the form of heat and light is produced
d)
energy is used in this process
33.
Where does the energy that a star produces come from?
a)
energy was in the star the whole time
b)
burning gases in the star
c)
the mass of the star
d)
we still do not know
34.
What does E=mc2 mean?
a)
efficiency = mass times the speed of light squared
b)
energy = medium times the constant squared
c)
energy = mass times the speed of light squared
d)
efficiency = medium times the constant squared
35.
Who is the best scientist ever?
a)
Neil deGrasse Tyson
b)
Bill Nye
c)
Albert Einstein
d)
Isaac Newton
100 %
