The Universe Study Guide Page 2
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39. What is 1
As main sequences stars temperature decrease, so does their
pattern you see on
luminosity; stars are grouped by type; most stars of the same
this diagram?
type have similar luminosity; (other answers can be
accepted…there are too many to list!)
10.A What is the
change in the apparent frequency of a wave as observer and
Doppler shift.
source move toward or away from each other; in space,
objects moving away from Earth have their spectrums shifted
towards the red end and those moving towards us shift
towards the blue
10.B How do
If objects are demonstrating a red shift, that means they are
scientist use the
moving away. Most objects are moving away from Earth,
Dopplar Shift to
therefore, everything around us is expanding.
support the Big
Bang theory?
11. 11a. Label
the following two
waves with the
words crest,
trough, and
wavelength.
11b. Identify
which has a higher
and which has a
lower frequency.
12. Explain the
Big bang Theory—universe began as an explosion forming all
most common
matter about 12-15 billion years ago and continually moving
scientific theory
apart
for the formation
of the universe.
13. Organize
Universe, Nebulae, Galaxies, Solar Systems, Planets, Moons.
these items found
in the Universe
from Smallest to
Largest
14. Betelgeuse is
It takes light from Betelgeuse 650 years to reach Earth
650 light years
away from Earth.
How long does it
take light from
Betelgeuse to
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