Rank the following 4 items by how long it takes for light to reach us from these
object, from shortest to longest.
The Andromeda Galaxy
the center of the Milky Way
Pluto
Sun.
Ans- Sun, Pluto, center of the Milky Way, the Andromeda Galaxy.
The current best estimate for the age of the univer...
MSU ISP 205 Final Exam Questions and Answers Rank the following 4 items by how long it takes for light to reach us from these object, from shortest to longest. The Andromeda Galaxy the center of the Milky Way Pluto Sun. Ans- Sun, Pluto, center of the Milky Way, the Andromeda Galaxy. The current best estimate for the age of the universe is about Ans- 14 billion years. What do astronomers mean when they say the universe is expanding? Ans- Average distances are increasing between most galaxies. Which statement is false? 1. A const ellation demarcates a patch of sky, making it easier for astronomers to locate interesting sources. 2. Modern -day constellations include Musca the Fly and Triangulum the Triangle. 3. There are 88 constellations, as defined by the International Astronomic al Union. 4. Practically every ancient culture had their own version of constellations, typically used for story telling. Ans- 1 Suppose we look at two distant galaxies: Galaxy 1 is twice as far away as Galaxy 2. In that case, Ans- We are seeing Gala xy 1 as it looked at an earlier time in the history of the universe than Galaxy 2 Identify the falsifiable statement below: 1. President Kennedy's murder was orchestrated by an undetectable shadow government of the United States. 2. The laws of nature a re magnificent and beautiful. 3. The Sun is at the center of the solar system. 4. The universe was created by God. Ans- 3 The Greeks rejected the notion that the Earth orbits the Sun. Why? Ans- They could not measure parallax (a change in stars' positions on the sky due to the Earth's orbit) What did Tycho, Kepler, and Newton do? Ans- Tycho collected the data, Kepler provided the model in the form of laws, Newton explained the model in terms o f gravity. Galileo observed all of the following. Which observation offered direct proof of a planet orbiting the Sun? Ans- phases of Venus.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller ExamArsenal. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
