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WorksheetsStars
Total questions: 45
Worksheet time: 13mins
What are the two things that a star's magnitude is affected by? (Select two)
distance from Earth
amount of light the star gives off (absolute magnitude)
the amount of helium in the star
how much light we see from Earth (apparent magnitude)
If a scientist knows the color of a star they can often estimate it's _______________.
volume
mass
temperature
size
How many constellations are there?
81
88
98
95
The most prominant star would be named ____________ using Bayer's system and the second prominant would be labeled ___________.
alpha, beta
beta, alpha
alpha, omega
beta, omega
What is the distance light travels in one year called?
light-year
starlight
light-century
lightometer
What are three of the four types of galaxies? Select all that apply.
elliptical
spiral
irregular
circular
What type of galaxy is our Milky Way?
barred spiral
elliptical
irregular
What telescope replaced the Hubble Space Telescope when it was launched in 2021?
Galileo Space Telescope
James Webb Space Telescope
Newtonian Space Telescope
Optical One Space Telescope
What is called when a starlight shifts toward the red end of the visible spectrum with increasing distance from Earth?
parallax
blue shift
red shift
parsec
What is a unit of astronomical distance equal to 3.26 light-years?
parsec
ly
9.5 trillion km
parallax
How many galaxies do scientists think exist?
1 billion
2 billion
1 trillion
2 trillion
Bright stars have ___________ numbers and dimmer stars have __________ numbers.
positive, negative
positive, no
negative, positive
negative, no
What is the name of a high mass star that has exploded leaving behind either a neutron star or black hole?
white dwarf
black dwarf
supernova
red giant
What is the definition of a galaxy?
group of suns in space
group of billions of stars, dust, and gases rotating in space
group of a lot of planets, asteroids, and a few stars
group of black holes and planetary nebulas
What is the name for two stars that orbit each other causing us to see a varying brightness?
cepheid variable
pulsars
eclipsing binary
supernova
A(n)___________ cluster of stars looks like one star, but a(n) ____________ cluster of stars looks like many individual stars.
Open, globular
Globular, open
Open, group
Globular, empty
____________ is the brightest star in our sky according to absolute magnitude, but ____________ is the brightest besides our sun according to apparent magnitude.
Rigel, Sirius
Sirius, Rigel
Rigel, Alpha Centauri
Sirius, Betelguese
Are all stars moving away from us?
Yes
No, stars don't move
No, some stars move toward us and some stars move away
No, stars only move toward us
Hot stars are ____________ and cool stars are _____________.
red, blue
blue, red
blue, yellow
yellow, red
Normally, the hotter the star the _______________ it is and the cooler the star the ______________ it is.
brighter, dimmer
dimmer, brighter
redder, bluer
dimmer, bluer
What are Orion, Centaurus, and Canis major examples of?
constellations
galaxies
white dwarfs
cepheid variable
Why did God create the stars? Choose all that apply.
for seasons
to be beautiful
for signs
to show off
What do astronomers think is at the center of all galaxies?
super massive black hole
red super giant
pulsars
a binary system
How did classifying stars help the ancient people? Choose all that apply.
to keep records
to keep a good system and to amaze them
to help navigate
to keep track of time
Which is true about the photo? Select all that apply.
The hotter the star the brighter the star.
The cooler stars are dimmer.
Most are in the main sequence section
White dwarfs are hot but dimmer.
What is the measure of the brightness of a star as we see on earth?
apparent magnitude
absolute magnitude
cepheid variable
H-R diagram
What is a star that changes in brightness because it expands and contracts regularly?
pulsar
cepheid variable
eclipsing binary
white dwarf
What is a a spinning neutron star that gives out strong, rapidly changing radio signals?
black hole
supernova
pulsars
nebula
The stage our sun is in right now due to hydrogen fusing to make helium (nuclear fusion)?
protostar
red giant
main sequence
white dwarf
What is an extremely dense, small, dark star in which atomic particles have combined to form neutrons?
neutron star
pulsar
white dwarf
blackhole
What is a large mass of dust and gases in space?
nebulae
pulsars
white dwarf
protostar
What is a very hot, small star that is very dense, near the end of a low or medium mass star?
white dwarf
black dwarf
neutron star
black dwarf
What is an extremely dense object with gravity so intense light can’t escape it?
supernova
blackhole
nebulae
neutron star
What is a chart that compares a star’s brightness with its temperature? (Select all that apply)
H-R Diagram
Hertzsprung-Russel Diagram
R-E Diagram
REI Diagram
What is a star's light we see from Earth called?
absolute magnitude
earth's luminosity
apparent magnitude
space luminosity
What is the most common type of galaxy?
spiral
barred spiral
irregular
elliptical
Which type of galaxy has a center that is horizontal in the middle with 2 or more arms coming off the middle?
spiral
barred spiral
elliptical
irregular
Which galaxy is described as a sphere of glowing stars?
spiral
barred spiral
elliptical
irregular
What type of galaxy has no regular shape or pattern?
spiral
barred spiral
elliptical
irregular
Which type of galaxy has 2 or more arms that twist away from the center?
spiral
barred spiral
elliptical
irregular
What is the Milky Way galaxy's diameter?
10,000 ly across
1,000 ly across
100,000 ly across
1,000,000 ly across
What two elements make up most stars?
hydrogen and helium
hydrogen and nitrogen
helium and nitrogen
iron and uranium
What process fuels stars?
nuclear fission
nuclear fusion
star fusion
celestial fission
Pick which stages are the beginning of a star's life.
white dwarf
proto-star
neutron star
nebula
Choose any option below that is part of the later stage of a star.
planetary nebula
nebula
white dwarf
neutron star
