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Earth Science Chapter 30 Flashcards | StudBud
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Earth Science Chapter 30
What type of galaxy is this?
Dark Energy is the unknown cause of:
Earth Science Chapter 30
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1
Dark Energy is the unknown cause of:
black holes
the deceleration of the universe's expansion
the acceleration of the universe's expansion
the speed of galaxy rotation
2
What type of galaxy is this?
Eliiptical
Lenticular
Barred Spiral
Spiral
3
The value for Hubble's constant is ______ km/s/Mpc
700
7000
7
70
4
Which part of our galaxy is made of mostly older stars that are close together?
bulge
disc
halo
orion arm
5
How are variable stars used in astronomy?
to determine age
to determine size
to determine speed
to determine distance
6
A quasar is:
what galaxies turn into
a stellar mass black hole
a galaxy when it is forming
a star that emits radio waves
7
Which part of our galaxy is made of newer stars and nebulea?
bulge
orion arm
disc
halo
8
In what part of the Milky Way is the Sun?
disc
halo
bulge
globular clusters
9
What type of galaxy is this?
Eliiptical
Spiral
Barred Spiral
Lenticular
10
Over time galaxies become more:
spiraled and red
spiraled and blue
blue and irregular
irregular and red
11
What star population of the Milky Way is made of older redder stars
Population II
Population I
12
Which part of our galaxy is made of mostly older stars and dark matter?
disc
halo
bulge
orion arm
13
What star population of the Milky Way is made of a higher percentage of heavy elements
Population II
Population I
14
Two evidences supporting the Big Bang Theory are:
blue shifts , and cosmic background radiation
redshifts, and Hubble's constant
blue shifts, and Hubble's constant
red shifts, and cosmic background radiation
15
Galaxies that are ______ move ______ the fastest
farther away, away
closest, away
farther away, toward us
16
Which type of star is a variable star?
Pulsar
White Dwarf
Binary Star
RR Lyrea
17
What type of galaxy is this?
Irregular
Peculiar
Barred Spiral
Lenticular
18
What type of galaxy is this?
Lenticular
Irregular
Spiral
Barred Spiral
