Yall check my answers please?
1. A spiral galaxy can be described as what type of shape?(1 point)
oval
triangular
no distinct shape
pinwheel***
2. What lies at the center of the Milky Way galaxy?(1 point)
the sun
a black hole***
Earth
North Star
3. How are asteroids and comets similar?(1 point)
Both are frozen.***
Both orbit the sun.
Both are composed of rock.
Both are composed of gases.
4. At certain times of the year, four planets can be seen from Earth, including Mars and(1 point)
Neptune.
Juno.
Saturn.***
Uranus.
5. What caused people to accept the geocentric model of the universe?(1 point)
Objects seem to move across the sky, and Earth did not feel like it was moving.***
Telescopes allowed for a much detailed view of the circular orbits of the planets.
Noticing the gravity will eventually pull all the planets and the universe back together.
Measurements and mathematical models demonstrated that the planets orbit around the sun.
6. Which ideas describe the big crunch?(1 point)
The universe is not only composed of the objects that we can see.
The universe goes through infinite cycles of expansion and contraction.
The big bang actually never occurred, and the universe must have a different origin.
After the universe reaches its expansion limit, gravity will pull it all back together.***
7. Use the excerpt from an online article to answer the question.
“While the big bang theory is the most popular modern theory of how the universe formed, it is incomplete.”
Which question does the big bang theory leave unanswered?
(1 point)
What is the future of the universe?
How did galaxies and stars form?
What is the temperature of deep space?***
When did the universe form?
8. Which theory of how the universe formed is best supported by evidence of radio waves detected in space?(1 point)
heliocentric model
steady state theory
big crunch theory
big bang theory***
9. What triggered the cyclic model of the origin of the universe?(1 point)
Some scientists argue that the planets do not orbit in circles around the sun.
Some scientists began to use telescopes and mathematics to study the universe.
Some scientists found that the amount of radiation in space is not consistent with an explosion.
Some scientists think that the universe will not keep expanding forever.***
Please check my answers!
16 answers
The other questions look right.
A spectrum plural spectra or spectrums is a condition that is not limited to a specific set of values but can vary, without steps, across a continuum. The word was first used scientifically in optics to describe the rainbow of colors in visible light after passing through a prism. As scientific understanding of light advanced, it came to apply to the entire electromagnetic spectrum. It thereby became a mapping of a range of magnitudes (wavelengths) to a range of qualities, which are the perceived "colors of the rainbow" and other properties which correspond to wavelengths that lie outside of the visible light spectrum.
pinwheel
a black hole
Both orbit the sun
Saturn
Objects seem to move across the sky, and Earth did not feel like it was moving
After the universe reaches its expansion limit, gravity will pull it all back together
What is the future of the universe?
Big Bang Theory
Some scientists think that the universe will not keep expanding forever
There is a red shift, which means that the star is moving away from the sun
Last 3 answer yourself.
2. A black hole.
3. Both orbit the sun.
4. Saturn
5. Noticing the gravity will eventually pull all the planets and the universe back together.
6. After the universe reaches its expansion limit, gravity will pull it all back together.
7. What is the future of the universe?
8. Big Bang Theory
9. Some scientists think that the universe will not keep expanding forever.
Credit to @You Were Blessed for 11 through 13
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Q #1: A spiral galaxy can be described as what type of shape?
A #1: Pinwheel
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Q #2: What lies at the center of the Milky Way galaxy?
A #2: A black hole
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Q #3: How are asteroids and comets similar?
A #3: Both orbit the sun
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Q #4: At certain times of the year, five planets can be seen from Earth, including Mars and
A #4: Saturn
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Q #5: What caused people to accept the geocentric model of the universe?
A #5: Objects seem to move across the sky, and Earth did not feel like it was moving.
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Q #6: Which ideas describe the big crunch?
A #6: After the universe reaches its expansion limit, gravity will pull it all back together
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Q #7: Which question does the big bang theory leave unanswered?
A #7: What is the future of the universe?
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Q #8: Which theory of how the universe formed is best supported by evidence of radio waves detected in space?
A #8: Big Bang Theory
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Q #9: What triggered the cyclic model of the origin of the universe?
A #9: Some scientists think that the universe will not keep expanding forever
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Q #10: Which inference can be made from the spectrum readings?
A #10: There is a red shift, which means that the star is moving away from the sun.
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EXAM/TYPING PART
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Q #11: In three to five sentences, briefly describe how the big bang theory explains the origin and evolution of the universe.
A #11: The big bang theory explained the origin of the universe through the hypothesis that everything in the universe came into existence at about the same time billions of years ago.
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Q #12: In three to five sentences, evaluate the scientific evidence that supports the big bang theory and the steady state theory.
A #12: The big bang theory, is that the universe was created by an explosin that happened in space. Which is an extremely high temperature and high density resulted in expansion of the space after the universe cooled they said the elements were then formed.
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Q #13: In one or two sentences, make a hypothesis about the movement of the galaxy and explain at least one way to test the hypothesis.
A #13: The milky way galaxy is the galaxy system that has over a hundred billion stars and it also includes the solar system. It is also referred to as galaxy and the milky way was described like that because that is it´s appearance when viewed from the earth.
A. Some scientists think that the universe will not keep expanding forever.
B. Some scientists began to use telescopes and mathematics to study the universe.
C. Some scientists found that the amount of radiation in space not consistent with an explosion.
D. Some scientists argue that the planets do not orbit in circles around the sun.
1 answer