Chapter 1 quiz_ ASTRON 001 _ Elementary Astronomy - Kiley D. - FALL 2023 - SECTION# 14762

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Los Angeles City College *

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Astronomy

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Dec 6, 2023

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11/2/23, 11:10 AM Chapter 1 quiz: ASTRON 001 : Elementary Astronomy - Kiley D. - FALL 2023 - SECTION# 14762 https://ilearn.laccd.edu/courses/242104/quizzes/1840557 1/5 Chapter 1 quiz Due Dec 16 at 11:59pm Points 10 Questions 10 Available Aug 28 at 8am - Dec 18 at 11:59pm Time Limit None Allowed Attempts 2 Instructions Attempt History Attempt Time Score LATEST Attempt 1 8 minutes 10 out of 10 Answers will be shown after your last attempt Score for this attempt: 10 out of 10 Submitted Sep 7 at 11:37am This attempt took 8 minutes. This is the Chapter 1 quiz. You have two attempts to answer these questions, and your highest score will be recorded! Take the Quiz Again 1 / 1 pts Question 1 Copernicus believed that the Earth was the center of all celestial motion. True False
11/2/23, 11:10 AM Chapter 1 quiz: ASTRON 001 : Elementary Astronomy - Kiley D. - FALL 2023 - SECTION# 14762 https://ilearn.laccd.edu/courses/242104/quizzes/1840557 2/5 1 / 1 pts Question 2 During retrograde motion, planets actually stop and move backwards in space. True False 1 / 1 pts Question 3 Which of these was not seen telescopically by Galileo? Four moons around Jupiter. craters and mare on the Moon. Venus' phase cycle. stellar parallax. sunspots. 1 / 1 pts Question 4 Kepler's laws hold only for the six planets known in his time. True False
11/2/23, 11:10 AM Chapter 1 quiz: ASTRON 001 : Elementary Astronomy - Kiley D. - FALL 2023 - SECTION# 14762 https://ilearn.laccd.edu/courses/242104/quizzes/1840557 3/5 1 / 1 pts Question 5 Tycho Brahe's contribution to Kepler's Laws of Planetary Motion were his detailed and accurate observations of the planets' positions. a precise lunar calendar. the correct explanation of lunar phases. a mathematical explanation of epicycles. his observations of Jupiter's moons. 1 / 1 pts Question 6 Kepler proved that the planets orbited the Sun in ellipses with the Sun in the center. True False 1 / 1 pts Question 7 The force of gravity varies inversely with the square of the distance between the objects. True
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11/2/23, 11:10 AM Chapter 1 quiz: ASTRON 001 : Elementary Astronomy - Kiley D. - FALL 2023 - SECTION# 14762 https://ilearn.laccd.edu/courses/242104/quizzes/1840557 4/5 False 1 / 1 pts Question 8 An asteroid orbits the Sun with an orbital distance of 4 AU. What is it's orbital period in Earth-years? 2 years. 8 years. 5 years. 16 years. 64 years. 1 / 1 pts Question 9 If the distance between two asteroids is doubled, the gravitational force they exert on each other will be 1/4 as great. be four times greater. be 1/16 as great. be half as great. also be doubled.
11/2/23, 11:10 AM Chapter 1 quiz: ASTRON 001 : Elementary Astronomy - Kiley D. - FALL 2023 - SECTION# 14762 https://ilearn.laccd.edu/courses/242104/quizzes/1840557 5/5 1 / 1 pts Question 10 If the Sun was to disappear, the planets would stop moving in space. True False Quiz Score: 10 out of 10