ASTR&101 Midterm Exam

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Zvxrmunat

Science

Astronomy 101

University Of Washington Bothell

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THIS IS ASTRONOMY&101 CLASS, AND THIS IS MIDTERM EXAM INCLUDE FOUR QUESTIONS NEED TO BE ANSWERED. EACH ANSWER MUST BE 250+ WORDS. IF YOU HAVE ANY QUESTION, YOU CAN SEND ME EMAIL. THE FILE BELOW IS THE QUESTIONS I PUT IN THE DOCUMENT. IT USUALLY TAKES 2 HOURS. THANK YOU.



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1.Explain the concepts "speed of light" and "light year." How are these concepts related to the idea that astronomers can "see into the past?" Describe your cosmic address. Combine this understanding , along with what you know about the speed of light and the distances between objects in the universe, in a discussion of what you feel is the future of manned space travel. 2.Using vocabulary such as meridian, zenith, etc., describe the relationship of a star's altitude above the horizon and the observer's latitude. If you are positioned at the Earth's equator, and a given star is at your zenith, what happens to that star's position (relative to you, the observer) as you walk in a straight line to the North Pole? Why are some stars and constellations only seen during certain seasons? 3. What role did astronomy play in ancient cultures, and how is that role different today? What makes science -- science? Describe how modern science operates and distinguish it from philosophy, pseudoscience, and religion. In recognition of these distinctions, what individual(s) and methods mark the beginning of Astronomy as a science? 4.Explain how light and its physical properties can be used gather information on celestial objects related to 1) composition, 2) temperature, and 3) motion (speed and direction).
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Running head: PHYSICS

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ASTR&101 Midterm Exam
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PHYSICS

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ASTR&101 Midterm Exam

Question 1
The speed of light refers to the velocity at which light travels. It is the rate at which a
ray of light moves from the source to a particular target. On the other hand, the light-year
refers to the distance cover by fire in the space for one year. Many people would reason that
the speed of light and the light-year are the same things. However, the two elements are
different, but this has a close association (Williamson, Rector, & Lowenthal, 2019).
The speed of light is a compound measure that comes from the quotient of distance
and time. For one to attain the standard measure of the speed of light, the value of the length
and time must be taken. The fact that view is the fastest traveling element in the universe
makes it difficult to attain a specific speed. Therefore, the measured time is one year to check
the distance of 1 year in a vacuum. Thus, if the velocity of light is known, then the
parameters are broken to measure the distance covered by fire in other elements of the
universe.
Therefore, this relates to the time astronomers use I when traveling to space. Before
they move to the area, they must understand all the factors that are associated with light.
From this idea, the astronomers may find it easier ...


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