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Cosmology
Page 3
Questions (416)
what is the evidence of the Big Bang Theory
3 answers
asked anonymously
24 views
the opposite of the big bang theory states that the universe has always existed with no beginning or end. this theory is called
3 answers
asked by
???
29 views
Where is most of the baryonic matter (ordinary matter) of the universe found?(1 point) Responses in planets and natural
3 answers
asked anonymously
37 views
what does the Big Bang theory suggest?
3 answers
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18 views
Which is evidence of universe expansion that supports the Big Bang theory
3 answers
asked anonymously
61 views
Expanding universe quick check
3 answers
asked anonymously
72 views
In tHREE. To five sentence evaluate the scientific evidence that supports the Big Bang theory and the steady state theory
3 answers
asked anonymously
79 views
A curvature constant of k=0, as used in the Friedmann equation, means:
* The universe is open * The universe is matter-dominated
1 answer
asked by
qwerty
881 views
In an Einstein-de Sitter (matter-dominated) universe, the scale factor is proportional to time to the power of:
* 3/2 * 2/3 * 1/2
1 answer
asked by
qwerty
301 views
In order from earlier to later times, the dominant components of our universe have been:
* dark energy, matter, then radiation *
2 answers
asked by
qwerty
477 views
Lookback time for a given redshift, tL(z), is...
* time between the given redshift and the beginning of the Universe. * time
1 answer
asked by
qwerty
374 views
The most cosmological measurements show that the universe is extremely flat (Ωk≈0) and that the surface brightness of objects
1 answer
asked by
qwerty
417 views
The solution of Olbers' Paradox is:
- The universe is opaque at large scales - The universe expands - There is simply not enough
3 answers
asked by
qwerty
497 views
Cosmological redshift is defined as R(t0)/R(te) =
- 1+z - 1 / 1−z - 1−z - 1 / 1+z
1 answer
asked by
qwerty
376 views
The scale factor, R, describes how universal expansion changes with:
- time - curvature - location - all of the above
3 answers
asked by
qwerty
327 views
The universe is homogeneous and isotropic on:
- large scales (more than 100 Mpc) - neither small nor large scales - small scales
1 answer
asked by
qwerty
428 views
The equation describing the geometry and mass-energy distribution of a homogeneous and isotropic universe is known as:
- The
3 answers
asked by
qwerty
465 views
Where is most of the baryonic matter (ordinary matter) of the universe found?(1 point) Responses in dark matter and dark energy
3 answers
asked anonymously
45 views
This is my theory, read well if you wish to know the truth: according to the big bang, there is a equal amount of anti-matter to
10 answers
asked by
The Curse Word Destroyer, age 11
881 views
Which of the following is an accurate description of cosmic microwave background (CMB) radiation? (1 point)
Responses CMB
3 answers
asked by
wig
59 views
Which 2 of the following is an accurate description of cosmic microwave background (CMB) radiation? (1 point)
Responses A. CMB
3 answers
asked by
wig
56 views
Which of the following is an accurate description of cosmic microwave background (CMB) radiation? Select two answers> CMB
3 answers
asked by
someonestolemytoast19
72 views
How has scientific understanding about the composition of the universe changed over time? Select the TWO correct answers.
A. The
3 answers
asked by
qwpovj
45 views
Which is evidence for the existence of dark energy?
A. Black holes that are expanding at a constant rate. B. Pulsars that seem to
3 answers
asked by
qwpovj
60 views
The Universe Unit Test
12 of 1312 of 13 Items Question In three to five sentences, evaluate the scientific evidence that supports
3 answers
asked by
Jace R Miller
107 views
The Universe Unit Test
11 of 1311 of 13 Items Question In three to five sentences, briefly describe how the big bang theory
3 answers
asked by
Jace R Miller
71 views
Which ideas describe the big crunch?(1 point)
Responses The universe goes through infinite cycles of expansion and contraction.
3 answers
asked by
Jace R Miller
146 views
What does the evidence supporting the Big Bang theory assume about the universe when it began? Select the two correct answers.(1
3 answers
asked by
billy bob joe
46 views
STILL HAVE NOT GOTTEN AN ANSWER FOR THIS!!
If the Hubble parameter is found to be smaller than we think it is, how would this
1 answer
asked by
Amy
293 views
If the Hubble parameter is found to be smaller than we think it is, how would this change the measured age of the universe?
1 answer
asked by
Amy
335 views
What does the evidence supporting the Big Bang theory assume about the universe when it began? Select the two correct answers.(1
3 answers
asked anonymously
42 views
1. Which is evidence of universe expansion that supports the Big Bang Theory?
a. the temperature of the universe is the same as
3 answers
asked by
Connexus Student
36 views
Which statement about the geocentric model is true? *
1 point a. It shows the orbits of the planets as elliptical. b. It shows
3 answers
asked anonymously
51 views
which correctly relate dark matter and dark energy to the big bang theory? Select two correct answers.
a. dark energy is the
3 answers
asked by
M
174 views
How is gravitational lensing related to dark matter?
a. dark matter emits lens-shaped rings of light b. the gravity of dark
3 answers
asked by
M
307 views
Dark _________ is the only explanation for the structures of the early universe. Clumps of it led to ______________ in the early
3 answers
asked by
M
133 views
Which of the following properties of the universe has decreased as the universe has expanded?
a. mass b. energy c. temperature d.
3 answers
asked by
M
27 views
Why is cosmic background radiation used as evidence of the bif bang theory?
a. it is emitted from a black hole at the center of
3 answers
asked by
M
29 views
What does the evidence supporting the Big Bang theory assume about the universe when it began? Select the two correct answers.(1
3 answers
asked anonymously
40 views
What does the evidence supporting the Big Bang theory assume about the universe when it began? Select the two correct answers.(1
3 answers
asked anonymously
78 views
Which is evidence of universe expansion that supports the Big Bang Theory? (1 point)
• The temperature of the universe has
3 answers
asked anonymously
39 views
What is the name of the supercluster in which the Local Group is located?(1 point)
Centaurus Centaurus Corona Borealis Corona
3 answers
asked anonymously
48 views
Which is evidence of universe expansion that supports the Big Bang Theory?
The temperature of the universe has cooled and warmed
3 answers
asked by
Pls help
29 views
The opposite of the Big Bang Theory states that the Universe has always existed with no beginning or end. This theory is called
3 answers
asked anonymously
57 views
How did dark matter affect the development of structures in the early universe?(1 point)
Responses It cooled pockets of gas to
3 answers
asked anonymously
49 views
Which is evidence for the existence of dark energy?(1 point)
Responses Pulsars that seem to be moving closer at an accelerating
7 answers
asked anonymously
154 views
Which is evidence for the existence of dark energy?(1 point)
Responses Pulsars that seem to be moving closer at an accelerating
3 answers
asked anonymously
69 views
Which is evidence of universe expansion that supports the Big Bang Theory?(1 point)
Responses The temperature of the universe has
3 answers
asked anonymously
50 views
What the definition of dark energy? *
1 point Energy that humans cannot observe directly Energy that has a small effect on the
3 answers
asked anonymously
130 views
Which is evidence for the existence of dark energy? *
1 point galaxies that are rotating at a constant rate Pulsars that seem to
3 answers
asked anonymously
133 views
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Parent Categories (10)
Astronomy
Astronomy and Astrophysics
Astronomy/Physics
Astrophysics
Physical Sciences
Physics
Science
Science & Astronomy
Science and Astronomy
Science or Physics