Answer the attached questions. The question’s answers should contain one source with an APA style citation (references do not count towards word count). The citation should be listed right under the question’s answer.
You will find ALL of the answers to the questions in the OpenStax Astronomy textbook. Please only use textbook as a reference for the questions and in-text citations.
References
OpenStax Astronomy
https://openstax.org/details/books/astronomy
Question 1
(a) What is the relationship between the Moon and ocean tides? (b) During what phases of the moon are ocean tides most extreme (the highest), and why? Describe the positions of the Moon and Sun at these times. (c) During what phases of the moon are ocean tides the weakest, and why? Describe the positions of the Moon and Sun at these times. Be sure to respond in your own words.
Question 2
A younger cousin asks you, “How old is the universe?” You explain that according to current scientific data, the universe is 13.8 billion years old. Your cousin’s eyes get wide. “I can’t even wrap my mind around that number!” they say. Explain how you would use the concept of a cosmic calendar, or a cosmic year, to illustrate the age of the universe as well as the age of the Milky Way, the Solar System, and civilization. Answer in your own words in ~1 paragraph.
Question 3
What conditions are required in order for a total solar eclipse to occur? What conditions are required in order for a total lunar eclipse to occur? Answer in your own words in ~1 paragraph.
Question 6
Describe the connections between the following concepts: distance, the speed of light, triangulation, the age of the Universe, parallax, and luminosity. Answer in your own words in 1-2 paragraphs. (There are multiple correct answers to this question – just be sure to be specific and demonstrate how these concepts are linked.)
Question 7
Select any video or animation from the multimedia selections in this lesson. Indicate which video/animation you selected. Describe what you learned from this video/animation (what did you learn that you didn’t know before?) and how it pertains to the information in the readings. Answer in your own words in ~1 paragraph.
Question 8
Describe the most important idea that Copernicus brought to the field of astronomy. How did he arrive at this idea? What challenges did he face when he presented his ideas? Answer in your own words in 1-2 paragraphs.
Question 9
If you were teaching an introductory astronomy class, what are three things you would teach your students about the concept of the “celestial sphere”? That is, what celestial sphere-related concepts do you think are most important? Answer in your own words in 1-2 paragraphs, and be specific.
Question 10
Give two examples of how ancient cultures used astronomy for timekeeping and the development of calendars. Answer in your own words in ~1 paragraph.
Question 12
Explain why the delay in the arrival of light from objects in space is beneficial to astronomers. Provide some specific examples to support your main points. Answer in ~1 paragraph.
Question 13
A grade school student asks you, “Where is the Earth located in space?” Explain to the student where the Earth is located (a) within the Solar System, (b) within the Milky Way, and (c) within the observable universe. Answer in 1-2 paragraphs.
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Question 14
In July, the northern hemisphere experiences summer while the southern hemisphere experiences winter. In your own words, explain why that is. Answer in ~1 paragraph, and be descriptive in your explanation.
Question 17
In your opinion, what were three of the most important contributions that ancient astronomers (before the Renaissance) made to the field of astronomy? Explain your response, and support your perspective with relevant information from the lesson. Answer in your own words in 1-2 paragraphs.
Question 19
You are looking through a telescope at a star that is 1000 light-years away. When did the light we see now leave that star? Are we looking at the star as it exists now, or as it existed in the past? Explain in your own words in 1-2 sentences.
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