Quiz-Ch-1_ Intro to Astronomy w_lab

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Lehigh Carbon Community College *

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Astronomy

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Apr 3, 2024

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3/4/24, 8:08 PM Quiz-Ch-1: Intro to Astronomy w/lab (17937-202410) https://lccc.instructure.com/courses/21547/quizzes/106181 1/4 Quiz-Ch-1 Due Jan 29 at 11:59pm Points 10 Questions 10 Available Jan 22 at 12am - Jan 29 at 11:59pm Time Limit None This quiz was locked Jan 29 at 11:59pm. Attempt History Attempt Time Score LATEST Attempt 1 9 minutes 10 out of 10 Score for this quiz: 10 out of 10 Submitted Jan 29 at 9:39pm This attempt took 9 minutes. Question 1 1 / 1 pts It was made by our Sun. It was produced in the Big Bang. It was created by chemical reactions in interstellar space. It was made by nuclear fission of uranium and other radioactive materials. Correct! It was produced by nuclear fusion in stars. Question 2 1 / 1 pts It will take the Voyager spacecraft about 20,000 years to travel just 1 light-year. It's about 4 light-years from here to Alpha Centauri. The Milky Way Galaxy is about 100,000 light-years in diameter. A light-year is about 10 trillion kilometers. Correct! It will take me light-years to complete this homework assignment. Earth is made mostly of metals and rocks. Where did this material come from? Which of the following statements does not use the term light - year in an appropriate way?
3/4/24, 8:08 PM Quiz-Ch-1: Intro to Astronomy w/lab (17937-202410) https://lccc.instructure.com/courses/21547/quizzes/106181 2/4 Question 3 1 / 1 pts Correct! 300,000 kilometers from the Earth twice the distance from the Earth to the Sun 1 light year from the Earth 1 astronomical unit from the Earth 3,000 kilometers from the Earth Question 4 1 / 1 pts Correct! 1.08 billion km 100 million km 300,000 km 18 million km 9.46 trillion km Question 5 1 / 1 pts oxygen and carbon hydrogen and oxygen Correct! hydrogen and helium nearly equal portions of all the elements carbon and nitrogen Question 6 1 / 1 pts Light takes approximately one second to travel from the Earth to the Moon. This means that the moon is approximately One light - hour is the distance that light travels in an hour. How far is this, in kilometers? (Recall that the speed of light is 300,000 km/s.) What is the Sun mainly made of? Which of the following correctly describes the concept of galactic recycling ?
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