CPCS 181 – INTRODUCTION TO ASTRONOMY QUESTIONS WITH VERIFIED ANSWERS | COMPLETE SET

CPCS 181 – INTRODUCTION TO ASTRONOMY QUESTIONS WITH VERIFIED ANSWERS | COMPLETE SET Quiz 1 Question 1 1 point A light-year is ⬜ an interval of time □ a measure of length ⬜ an indication of speed Question 2 1 point This telescope image was taken of the Andromeda Galaxy, which is located about 2.5 million ly away from us. This image shows how the Andromeda Galaxy ⬜ looks right now □ looked in the past ⬜ will look in the future Question 3 1 point Which of the following statements does NOT use the term “light-year” in an appropriate way? ⬜ It's about 4 light-years from here to Proxima Centauri. ⬜ The Milky Way Galaxy is about 100,000 light- years in diameter. ⬜ It will take the Voyager spacecraft about 20,000 years to travel just 1 light-year. □ It will take me light-years to complete this homework assignment. ⬜ A light-year is about 10 trillion kilometers. Question 4 1 point Your satellite orbits close to the Sun and detects a solar flare erupting at 10:00 PM, as lOMoAR cPSD| measured by the satellite’s clock. Your clock is exactly synchronized with the satellite clock. The Sun is located 8 light minutes away from Earth. If you wish to observe this flare from your backyard, you need to look at: ⬜ 9:52 PM ⬜ 10:00 PM □ 10:08 PM ⬜ 10:52 PM ⬜ None of the above are correct, since this flare has already occurred. Part 2 - Case Study Imagine that you have received six pictures of six different children who live near six of the closest stars to the Sun. Each picture shows a child on his or her 12th birthday. The pictures were each broadcast directly to you (using a satellite) on the day of the child’s birthday. Note the abbreviation “ly” is used below to represent a light-year. Eugene lives on a planet orbiting Ross 154, which is 9.5 ly from the Sun. Max lives on a planet orbiting Barnard’s Star, which is 6.0 ly from the Sun. Crystal lives on a planet orbiting Sirius, which is 8.6 ly from the Sun. Sydney lives on a planet orbiting Alpha Centauri, which is 4.3 ly from the Sun. Kelly lives on a planet orbiting Epsilon Eridani, which is 10.8 ly from the Sun. Mitch lives on a planet orbiting Procyon, which is 11.4 ly from the Sun. Question 5 1 point Which child lives closest to our Sun? ⬜ Eugene ⬜ Max ⬜ Crystal □ Sydney ⬜ Kelly ⬜ Mitch Question 6 1 point What was the greatest amount of time that it took for any one of the pictures to travel from the child to you? " 11.4 years " Question 7 1 point Imagine that the six pictures all arrived to you at exactly the same time. For this to be true, which child had to send their picture first? ⬜ Eugene ⬜ Max ⬜ Crystal ⬜ Sydney ⬜ Kelly □ Mitch Question 8 1 point Imagine that the six pictures all arrived to you at exactly the same time. For this to be true, which child had to send their picture last? ⬜ Eugene ⬜ Max ⬜ Crystal □ Sydney lOMoAR cPSD| ⬜ Kelly ⬜ Mitch