Ask a New Question
Menu

Question 1 (1 point)

Which of the following is the best description of a nebula?

a
a large cloud of dust and gas where stars are born
b
a dense cluster of billions of stars
c
a single sun surrounded by planets and asteroids
d
a large cloud of comets and asteroids surrounding a solar system
Question 2 (1 point)
Why is cosmic background radiation used as evidence of the Big Bang Theory?

a
It is emitted from a black hole at the center of the universe.
b
Its wavelength is getting shorter, so it must be very old.
c
It corresponds to the same temperature as the beginning of the Universe
d
It is not very common, so it must be running out.
Question 3 (1 point)
The Milky Way and Andromeda are on a Collision Course (it will take a few billion years..). From the persepective of Earth, the approaching Andromeda must have a _____ effect.



a
Redshift
b
Blueshift
c
Elliptical
d
Galactic
Question 4 (1 point)
In the diagram, what is the stick figure in the road experiencing in terms of the Doppler effect?



a
Lower pitch sound due to a lower frequency
b
Consistent sound because the frequency stays the same
c
Higher pitch sound due to a higher frequency
Question 5 (1 point)
Redshift is observed when...

a
a luminous object is STATIONARY compared to an observer.
b
a luminous object travels ALONGSIDE an observer.
c
a distant luminous object travels rapidly TOWARDS an observer.
d
a distant luminous object travels rapidly AWAY from an observer.
Question 6 (1 point)
The beginning of the Universe is theorized to have started when a central dense point expanded. This would suggest that two atoms collided and combined nuclei to become a bigger element, releasing a ton of energy. What type of energy release is this?

a
Nuclear Fission
b
Mass Spectrometry
c
Magnetism
d
Nuclear Fusion
Question 7 (1 point)
As stated in the Big Bang theory, what does the REDSHIFT of light from galaxies indicate about our Universe?

a
The universe is mainly hydrogen
b
The universe is cooling off.
c
The universe is expanding.
d
The universe is 13.8 billion years old.
Question 8 (1 point)
Which of the following represents the correct % of

Baryonic Matter, Dark Matter and Dark Energy in the Universe ?

a
5% Baryonic, 25% Dark Matter, 70% Dark Energy
b
5% Dark Energy, 25% Dark Matter, 70% Baryonic Matter
c
Equal amounts of all 3
d
50% Baryonic, 50% Dark Matter and Dark Energy doesn't exist
Question 9 (1 point)
What are the 2 most abundant Baryonic elements in the Expanding Universe. ** Think about the fuel making elements in the core of a star...

a
hydrogen and helium
b
carbon and oxygen
c
lithium and uranium
d
iron and nickel
Question 10 (1 point)
The reason why scientists called the invisible matter that makes up a fourth of the Universe "Dark Matter" is because

a
Dark matter is the same color as the black backdrop of space, so it cannot be seen
b
Dark matter radiates light on the dark violet portion of the visible spectrum
c
Dark matter does not interact with radiation or light, thus it cannot be seen
d
Dark matter absorbs all light, thus it makes the local space around it darker
Question 11 (1 point)
What is the reason that scientists proposed the existence of the mysterious Dark Energy?

a
The rate of expansion of the Universe was increasing and something must be driving this to happen
b
The amount of light generated by galaxies is too much for the energy of their stars
c
The energy of stars are higher than what can normally be produced with fusion
d
Galaxies generate dark energy by the darker color lights coming off them
Question 12 (1 point)
According to the Big Bang Theory, the universe started from an infinitely dense point called a

a
galactic core
b
singularity
c
white dwarf
d
nebula
Question 13 (1 point)
Why is the cosmic background radiation so weak today?

a
The Big Bang wasn't as powerful as originally suspected
b
The energy from cosmic background radiation is absorbed by galaxies
c
Cosmic background radiation cannot be measured by current science equipment
d
It started as a fixed amount that has been spread out wide across the entirety of the expanding Universe
Question 14 (1 point)
Which of the following has DROPPED as the Universe has EXPANDED?

Hint: This factor has stayed the same in Cosmic Microwave Background radiation since the beginning of time...





a
Mass
b
Magnetism
c
Temperature
d
Volume

1 answer

Here are the answers to the questions you've provided:

  1. Question 1: Which of the following is the best description of a nebula?

    • Answer: a - a large cloud of dust and gas where stars are born

  2. Question 2: Why is cosmic background radiation used as evidence of the Big Bang Theory?

    • Answer: c - It corresponds to the same temperature as the beginning of the Universe

  3. Question 3: The Milky Way and Andromeda are on a Collision Course. From the perspective of Earth, the approaching Andromeda must have a _____ effect.

    • Answer: b - Blueshift

  4. Question 4: In the diagram, what is the stick figure in the road experiencing in terms of the Doppler effect?

    • Answer: a - Lower pitch sound due to a lower frequency

  5. Question 5: Redshift is observed when...

    • Answer: d - a distant luminous object travels rapidly AWAY from an observer.

  6. Question 6: What type of energy release is this?

    • Answer: d - Nuclear Fusion

  7. Question 7: What does the REDSHIFT of light from galaxies indicate about our Universe?

    • Answer: c - The universe is expanding.

  8. Question 8: Which of the following represents the correct % of Baryonic Matter, Dark Matter and Dark Energy in the Universe?

    • Answer: a - 5% Baryonic, 25% Dark Matter, 70% Dark Energy

  9. Question 9: What are the 2 most abundant Baryonic elements in the Expanding Universe?

    • Answer: a - hydrogen and helium

  10. Question 10: Why do scientists call the invisible matter "Dark Matter"?

    • Answer: c - Dark matter does not interact with radiation or light, thus it cannot be seen

  11. Question 11: Why did scientists propose the existence of Dark Energy?

    • Answer: a - The rate of expansion of the Universe was increasing and something must be driving this to happen

  12. Question 12: According to the Big Bang Theory, the universe started from an infinitely dense point called a:

    • Answer: b - singularity

  13. Question 13: Why is the cosmic background radiation so weak today?

    • Answer: d - It started as a fixed amount that has been spread out wide across the entirety of the expanding Universe

  14. Question 14: Which of the following has DROPPED as the Universe has EXPANDED?

    • Answer: c - Temperature

Feel free to ask if you have any more questions or need further assistance!