Download Astro Review - Blank - Mayfield City Schools

Universe Review Sheet
Name ___________________________ Date ____________________ Period __________
I. Match the following terms with their definitions.
a. universe
b. red shift
c. big bang theory
d. blue shift
e. Doppler effect
f. cosmic background radiation
g. galaxy
h. Hubble's Law
1. _____ an observed change in the frequency of a wave when the source or observer is moving
2. _____ theory that all matter and energy in the universe exploded 10 to 15 billion years ago and began
expanding in all directions.
3. _____ apparent shift toward shorter wavelengths of light when a luminous object moves toward the
viewer
5. _____ sum of all space, matter and energy
6. _____ a cluster of billions of stars held together by gravity.
7. _____ apparent shift toward longer wavelengths of light when a luminous object moves away from
the viewer
8. _____ steady but faint microwaves from all over the sky
9. _____ states that the father away a galaxy is, the faster it is moving away from Earth
II. Multiple Choice
1. _____
Is the following sentence true or false?
All distant galaxies are moving away from ours because our galaxy is at the center of the universe.
a. true
b. false
2. _____
The ______ states that the universe began when a dense, hot, super massive singularity violently
expanded.
a. steady state theory
c. big bang theory
b. string theory
d. big crunch theory
3. _____
Which is NOT evidence to support the big bang theory?
a. red shift of galaxies
c. galactic clusters
b. cosmic background radiation
d. Hubble's Law
4. _____
The red shift of distant galaxies show that the universe is ___________.
a. contracting
b. expanding
5. _____
Radiation left over from the big bang is called
a. cosmic radio waves
b. cosmic microwaves background radiation
6. _____
7. _____
8. _____
c. gamma ray bursts
d. cosmic x-ray radiation
About how long ago did the big bang occur?
a. 4.6 billion years ago
b. 10 billion years ago
c. 13.7 billion years ago
d. 100 million years ago
The universe is mostly made up of
a. dark matter
b. dark energy
c. atoms
d. empty space
The first elements that were formed in the universe were?
a. hydrogen and lithium
c. hydrogen and helium
b. lithium and helium
d. lithium and beryllium
Use the HR diagram to complete the
following questions.
1. Describe the size of stars in the H-R
diagram (in comparison with the sun) in
the upper right portion:
a.
b.
c.
d.
e.
much larger
somewhat larger
the same size
somewhat smaller
much smaller
2. Describe the color of the stars in the
upper right portion of the H-R diagram.
a. redder
b. about the same color
c. bluer
3. Describe the size of stars in the H-R diagram (in comparison with the sun) in the upper left portion:
a. much larger b. somewhat larger c. the same size
d. somewhat smaller e. much smaller
4. Describe the color of the stars in the upper left portion of the H-R diagram.
a. redder
b. about the same color
c. bluer
5. Describe the size of stars in the H-R diagram (in comparison with the sun) in the lower right portion:
a. much larger b. somewhat larger c. the same size
d. somewhat smaller e. much smaller
6. Describe the color of the stars in the lower right portion of the H-R diagram.
a. redder
b. about the same color
c. bluer
7. Describe the size of stars in the H-R diagram (in comparison with the sun) in the lower left portion:
a. much larger b. somewhat larger c. the same size
d. somewhat smaller e. much smaller
8. Describe the color of the stars in the lower left portion of the H-R diagram.
a. redder
b. about the same color
c. bluer
9. What is the classification of the Sun? ___________________________________________
Life Cycle of a Star Review
Part 1 - Sequencing
Directions: The stages below are not in the right order. Number the stages in the correct order.
_____ The star begins to run out of fuel and expands into a red giant or red supergiant.
_____ Stars start out as diffused clouds of gas and dust drifting through space.
A single one of these clouds is called a nebula
_____ What happens next depends on the mass of the star.
_____ Heat and pressure build in the core of the protostar until nuclear fusion takes place.
_____ The force of gravity pulls a nebula together forming clumps called protostars.
_____ Hydrogen atoms are fused together generating an enormous amount of energy
igniting the star causing it to shine.
Part 2 - Vocabulary
Directions: Match the word on the left with the definition on the right.
____ black dwarf
a. star left at the core of a planetary nebula
____ white dwarf
b. a red super giant star explodes
____ nebula
c. what a medium-mass star becomes at the end of its life
____ protostar
d. a large cloud of gas or dust in space
____ supernova
e. exerts such a strong gravitational pull that no light escapes
____ neutron star
f. the earliest stage of a star ’s life
____ black hole
g. the remains of a high mass star
Part 3 – Understanding Main Ideas  Medium Mass Star
Directions: Match the lettered picture with the correct phase name below
____ 1. Red giant
____ 2. Where fusion begins
____ 3. Nebula
____ 4. Black dwarf
____ 5. The stage the sun is in
____ 6. White dwarf
____ 7. Planetary Nebula
Part 4 – Understanding Main Ideas  Massive and Super Massive Star
Directions: Match the lettered picture with the correct phase name below
____ 1. Black Hole
____ 2. Supernova
____ 3. Protostar
____ 4. Gravity causes this to condense into a protostar
____ 5. Main sequence star
____ 6. When a star begins to run out of fuel and grows larger
____ 7. Neutron star
Galaxies:
1. Define Galaxy:
2. Galaxies are classified based on their ____________
3. What are the 3 categories / types of galaxies?
Sketch and briefly describe each.
4. What is the name of the galaxy we live in?
5. What type of galaxy do we in?
6. Sketch a top view and a side view of our galaxy and show where we are located.
Top View
Side View
Formation of the Universe
Name ___Key________________________
Review Sheet
Date ____________________ Period __________
I. Match the following terms with their definitions.
a. universe
b. red shift
c. big bang theory
d. blue shift
e. Doppler effect
f. cosmic background radiation
g. dark matter
h. cosmology
1. ___e_ an observed change in the frequency of a wave when the source or observer is moving
2. ___c_ theory that all matter and energy in the universe exploded 10 to 15 billion years ago and began
expanding in all directions.
3. ___d_ apparent shift toward shorter wavelengths of light when a luminous object moves toward the
Viewer
5. ___a_ sum of all space, matter and energy
6. ___g_ matter not visible through current methods, but observable through gravitational interactions
between galaxies
7. ___b_ apparent shift toward longer wavelengths of light when a luminous object moves away from
the viewer
8. ___f_ steady but faint microwaves from all over the sky
9. __h_ the study of the nature, structure, origin and fate of the universe
II. Multiple Choice
1. __c___ Space based telescopes, such as the Hubble Space Telescope, allow astronomers to see
further away than they can with telescopes on Earth. Seeing more distant objects is in effect
equivalent to seeing
a. the edges of the universe
c. further back in time.
b. into other universes.
d. further forward in time.
2. __b___ Is the following sentence true or false?
All distant galaxies are moving away from ours
because our galaxy is at the center of the universe.
a. true
b. false
3. __c___ The _________________ states that the universe began when a dense, hot, super massive
singularity violently exploded.
a. steady state theory
c. big bang theory
b. string theory
d. big crunch theory
4. __c___ Which is NOT evidence to support the big bang theory?
a. red shift of galaxies
c. galactic clusters
b. cosmic background radiation
d. abundance of light elements (H, and He)
5. ___d__ Which fate of the universe do scientist currently believe to be true?
a. open universe
c. flat universe
b. closed universe
d. accelerating universe
6. __b___ The red shift of distant galaxies show that the universe is ___________.
a. contracting
b. expanding
7. __b___ Radiation left over from the big bang is called
a. cosmic radio waves
b. cosmic microwaves background radiation
c. gamma ray bursts
c. cosmic x-ray radiation
8. __c___ About how long ago did the big bang occur?
a. 4.6 billion years ago
c. 13.7 billion years ago
b. 10 billion years ago
d. 100 million years ago
9. ___d__ The universe is mostly made up of
a. dark matter
b. dark energy
c. atoms
d. empty space
10. __c___ The first elements that were formed in the universe were?
a. hydrogen and lithium
c. hydrogen and helium
b. lithium and helium
d. lithium and beryllium
III. Short Answer