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Star Life
Cycle
HR
Diagram
Galaxies
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Theories
Of
Universe
The length of a stars life depends on
The mass of the star
At the end of its life, a star like our
sun, will most likely become a what?
A black dwarf
A star, like our sun, was formed
from a …
Nebula
During nuclear fusion, a star
converts _?_ to _?_.
Hydrogen to Helium
The typical life cycle of a star the
size of our sun
What are the stages of the life cycle?
Nebula – Protostar – main sequence
– Red Giant –Nova – White Dwarf –
Black Dwarf
What color are the hottest stars?
Blue
In what
region is our
sun found in?
Main Sequence
In the main
sequence, as
luminosity
increases,
temperature
_?_.
Increases
Sirius B is
considere
d what
type of
star?
White Dwarf
What star
has the
lowest
temperature
and lowest
luminosity?
Procyon B
How are galaxies classified?
By their shape
What type of galaxy is our galaxy,
the Milky Way?
Spiral
Where is the Earth’s solar system
located in the Milky Way galaxy?
2/3 of the way out on one of its
spiral arms.
All galaxies are held together by
Gravity
Which galaxy type has no spiral
structure and can vary in shape
from round to cigar shape?
Elliptical
The oscillating theory suggests what
about the universe?
Big Bang to Big Crunch to Big Bang
How are galaxies moving?
Away from each other
Why does the Hubble telescope take
clearer pictures than earthbound
telescopes?
The Hubble has no atmosphere to
hinder the clarity of the pictures
What theory suggests the
following:
-All matter concentrated into one
point.
-An explosion occurred and things
started moving outward
Big Bang
List the 3 pieces of evidence the
support the Big Bang Theory.
1. The universe is expanding,
galaxies are moving away
from each other
2. Background radiation noise
3. The Universe is mostly He
and H
The
diagram
represents
which
model of
the
universe?
Heliocentric
The diagram
represents
which
model of the
universe?
Geocentric Model
The model that states the Sun is the
center, everything orbits in an
elliptical path, and there are 8
planets.
The Current Model
The models that stated the Earth is
the center with everything revolving
around it in a circle.
Geocentric and Epicycle
The models that stated the sun is the
center and everything revolves
around it.
Heliocentric
Elliptical
Current