Energy suggested to explain rate of universal expansion

Which of the following is true?

As objects get hotter they begin to glow red

Why do some people think we live in a simulation

electrons and other atomic parts are thought to be pixels

How can we observe the CMB?

Tune in between stations on a radio

Which ideas counter the theory of a simulated universe?

the inconsistent rules among size and scale within physics

How do we know galaxies are moving away form each other?

All light from galaxies is red shifted

Matter we know exists but can't see

What is the impact of dark matter on the universe

Could boost gravity causing the universe to collapse

How do we know dark energy exists?

Observed mass and rotation of galaxies requires more mass

What does CMB stand for?

Cosmic Microwave background Radiation

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Cosmology review

19 termsStudBud Administration14 plays

A review of topics discussed in cosmology unit

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Questions 19

Answers

1
What is dark energy?
Energy suggested to explain rate of universal expansion
Energy required to explain visible light
Energy required to explain CMB
Energy required to explain red shift changes
2
Which of the following is not a band of light?
theta rays
Ulraviolet
X-rays
Infrared
3
Which of the following is true?
As objects get hotter they begin to glow red
As objects get colder they glow red
As objects get hotter they begin to emit thermal rays
As objects get colder they begin to emit thermal rays
4
Which of the following is true about dark energy?
Increases rate of expansion
causes changes to speed of light
has no observable effect
decreases rate of expansion
5
What is the big bang?
The collapse of the universe
The inflation of the universe
Starting point of the universe
the death of the universe
6
As two objects draw closer to each other what happens to the number of waves per second?
movement doesn't change number of waves.
decreases
no change
Increases
7
Which theory is helped by dark energy?
static universe
ever expanding universe
simulation universe
Oscillating universe
8
Why do some people think we live in a simulation
We have witnessed the glitches in the matrix
electrons and other atomic parts are thought to be pixels
we have observed the fluctuations in the universe
it explains why we have yet to meet aliens
9
How can we observe the CMB?
Look up into the sky at night
Experience when you get a sun burn
Causes dead zones in the cell network
Tune in between stations on a radio
10
Which ideas counter the theory of a simulated universe?
the inconsistent rules among size and scale within physics
that the laws of physics are the same every where
We are not NPC's
because physicists have seen the code
11
What does red shift tell us about the current state of the universe?
Universe is static
Universe is expanding
Universe is collapsing
Universe is shrinking
12
How do we know galaxies are moving away form each other?
All light from galaxies is UV shifted
All light from galaxies is x-ray shifted
All light from galaxies is red shifted
All light from galaxies is blue shifted
13
Which theory does Dark matter help support
Static universe
Oscillating universe
simulation universe
ever expanding universe
14
Which of the following explains what happens to light as light moves towards you?
shifts to blue
does not change
shifts to radio waves
shifts to red
15
What is dark matter?
An idea to explain why the universe is expanding
Matter we can see but can't explain
The matter found at the centre of a black hole
Matter we know exists but can't see
16
What is the impact of dark matter on the universe
Could slow gravity causing the universe to collapse
Could boost gravity causing the universe to collapse
Counters gravity and causes universal expansion to increase
Explodes when in contact with regular matter
17
How do we know dark energy exists?
Amount of red shift between galaxies needs more mass
Observed mass and rotation of galaxies requires more mass
Amount of red shift between galaxies needs less mass
current rate of universal expansion needs more mass
18
What does CMB stand for?
Cosmic Microwave background Radiation
Central microwave background radiation
Cosmic Mean average Background radiation
Constant Background Microwave radiation
19
What does CMB teach us about the universe?
Universe is collapsing
Universe is expanding
cooling of the universe
Formation of the universe

Cosmology review Flashcards | StudBud