01Mod-HW-2024Spring-2

Montgomery College – Rockville Astronomy 101 ASTR101 Spring 2024 Homework for Module 1 (16 points) Spring 2024 1 Part I Multiple Choice (10 points). For the following questions select the best answer. 1. The speed of light is 300,000,000 m/s. This could also be expressed as… A. 3.0 × 10 11 m/s B. 3.0 × 10 10 m/s C. 3.0 × 10 9 m/s D. 3.0 × 10 8 m/s E. 3.0 × 10 7 m/s 2. Which of the following has your "address" in the correct order? A. you, Earth, solar system, Local Group, Local Supercluster, Milky Way B. you, Earth, solar system, Milky Way, Local Supercluster, Local Group C. you, Earth, solar system, Local Group, Milky Way, Local Supercluster D. you, Earth, Local Group, Local Supercluster, solar system, Milky Way E. you, Earth, solar system, Milky Way, Local Group, Local Supercluster 3. A star is 560 light years away. The light we see tonight from that star left it A. one year ago B. 28 years ago C. 56 years ago D. 560 years ago E. the time depends on which part of the sky the star is in 4. You are on a camping trip, far away from city lights. You look up into the dark night sky, and see lots of stars, some brighter, some dimmer. All the stars you see with your unaided eye are A. in our solar system B. equally close to the Sun C. in the Milky Way Galaxy D. outside the universe E. just reflections of the Sun from a shiny surface beyond Pluto 5. The star map shown on page 19 of your Lecture Tutorials workbook shows the sky at midnight on July 1. Which of the following star groups do you see when looking south at this time? A. Auriga B. Scorpius C. Draco D. Equuleus E. Crater