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WorksheetsComponents of Universe
Total questions: 75
Worksheet time: 1hrs 5mins
Which type of galaxy is shaped like a pinwheel with spiral arms?
spiral galaxy
elliptical galaxy
irregular galaxy
Which type of galaxy has no definite shape?
spiral galaxy
elliptical galaxy
irregular galaxy
Which type of galaxy is shaped like an elongated sphere?
spiral galaxy
elliptical galaxy
irregular galaxy
What type of galaxy is the Milky Way Galaxy?
spiral barred galaxy
elliptical galaxy
irregular galaxy
What is a large celestial body that is composed of gas and emits light?
planet
comet
star
asteroid
What term correctly labels (a) on this diagram of a wave?
wavelength
crest
trough
amplitude
Which term correctly labels (d) on this diagram of a wave?
wavelength
crest
frequency
amplitude
High frequency waves are associated with which end of the electromagnetic spectrum?
red end
blue/violet end
middle
According to the H-R Diagram the hottest stars are represented by which color?
Blue
Red
Yellow
Orange
What type of star are the majority of the known stars classified as?
main sequence
giants
super giants
white dwarfs
Where are the hottest stars found on the H-R Diagram?
Right Side
Left Side
Top
Bottom
Where on the H-R Diagram are the coolest stars found?
Right Side
Left Side
Top
Bottom
Where on the H-R Diagram are the brightest stars found?
Right Side
Left Side
Top
Bottom
Where on the H-R Diagram are the dimmest stars found?
Right Side
Left Side
Top
Bottom
Which type of tool is most often used in astronomy to determine the composition of light arriving on Earth from other objects in the Universe?
pyschrometer
telescope
spectroscope
Which of the following are in the correct order from smallest to largest?
planets, nebulae, stars, galaxies
planets, stars, nebulae, galaxies
galaxies, nebulae, stars, planets
What happens over and over in a star to make it grow bigger?
convection currents
photosynthesis
nuclear fusion
At the end of the life cycle of a massive star if a lot of matter is left over it will end up being a ________________.
black hole
neutron star
white dwarf
red giant
At the end of the life cycle of an average star it will end up becoming a _______________________.
black hole
red giant
neutron star
white dwarf
Which of the following describes a nebula?
A cloud of gas and dust where new stars form
An oval-shaped cluster of densely packed stars
An explosion at the end of a giant star’s life
A star and all the planets that revolve around it
Elliptical, spiral, and irregular are all classifications of the overall shape of which of the following?
stars
galaxies
nebulae
comets
A spiral galaxy is best described as an extremely large group of stars -
arranged in arms encircling a dense center.
all packed into a spherical, dense center.
arranged in the shape of a flattened ball.
and gases arranged in no specific shape.
Which of the following best describes a star? A star is a celestial body -
composed of rock and metal with a very high density.
that is too big to be an asteroid, but too small to be a planet.
that rotates on an axis and revolves around the Sun.
composed of gases that emit light due to nuclear reactions.
Which of the following best describes a nebula? A nebula is -
a region in the solar system that is occupied by irregularly shaped bodies
a large and icy celestial body with an irregular orbit around the Sun.
a natural satellite created by the collision of two large asteroids.
an interstellar cloud of dust, hydrogen, helium and other gases.
Which of the following best describes a galaxy? A galaxy is -
a particle of debris in the solar system that does not act as a satellite of any planet.
a visible body of liquid or frozen crystal droplets suspended above a planetary surface
a massive system of stars, gas, dust and dark matter bound together by gravity.
the visible path of a meteoroid as it enters Earth’s atmosphere.
Stars are made mostly of which two elements?
hydrogen and helium
mercury and strontium
iron and potassium
krypton and bismuth
Use the Hertzsprung Russell Diagram to answer the following question. How do the characteristics of Vega and Rigel compare?
Vega is cooler and less bright than Rigel.
Vega is hotter and brighter than Rigel.
Vega is cooler and brighter than Rigel.
Vega is hotter and less bright than Rigel.
The explosion that sent the universe flying out is called _____.
The Big Bang
The Milky Way
The Solar System
The Sun
Since the Big Bang, and even today, the universe is still _____.
Expanding
Shrinking
Cooking
Spinning
Most scientists believe the Big Bang Theory explains which of the following questions?
How our planets and moons formed
How our universe began
How the sun turns hydrogen into helium
How fast light travels through space
Waves transfer
Matter
Energy
What word describes the distance over which a wave repeats?
Amplitude
Wave length
Wave height
Trough
The number of waves to pass a given point in a wave in a specific time is
speed
frequency
wavelength
amplitude
What term correctly labels (b) on this diagram of a wave?
wavelength
crest
trough
amplitude
More than half of all stars are members of groups of two or more stars called:
star clusters
eclipsing binaries
galaxies
star systems
The Hertzsprung-Russell diagram shows that main-sequence stars:
increase in brightness as they increase in temperature
are mostly hot and dim
decrease in brightness as they increase in temperature
are mostly cool and bright
Name the stars on the diagram that are blue or blue-white.
Algol, Van Maanen, and Deneb
Canopus, Procyon, and Sun
Mira, Betelgeuse, and Barnard's Star
Algol, Regulus, and Spica
Describe the features of the star Deneb.
Bright, white in color, 10,000 C
Dim, yellow in color, 6,000 C
Semi-bright, white in color, 8,000 C
Bright, blue-white in color, 20,000 C
When a star begins to run out of fuel, what two types of stars can it become?
Supernova or Neutron Star
White dwarf or Supernova
Red Giant or Supergiant
Supernova or Black Hole
Spinning nebula
main sequence star
white dwarf
red giant
protostar
Where would the Sun need to be in this diagram to cause these phases of the moon?
At the Bottom
At the Left
At the Top
At The Right
What would the moon look like 15 days after this one?
Full Moon
New Moon
Waning Crescent
Waxing Crescent
What moon phase will be observed after the waning crescent?
The image shows how the moon looks during the lunar cycle. The moon will look this way again in about -
one week
one month
one year
one century
First Quarter
Waxing Gibbous
Waning Crescent
What phase occurs on the designated part of the graph?
Waxing Crescent
Waxing Gibbous
Waning Crescent
Waning Gibbous
This image is from January 21st. What would the moon look like on February 4th?
Full Moon
New Moon
3rd Quarter
1st Quarter
