ASTR 1101 Chapter : Quiz 1
Document Summary
Chapter 1 a modern view of the universe. Answer: c: roughly how many stars are in the milky way galaxy, 1 billion, 100 billion, 10 billion, 100 million, 100 trillion. Answer: b: modern telescopes are capable of seeing bright galaxies up to about, 1 million light-years away, 10 million light-years away, 1 billion light-years away, 10 billion light-years away, 1 trillion light-years away. Copyright 2014 pearson education, inc: suppose we imagine the sun to be about the size of a grapefruit. Answer: d: earth is made mostly of metals and rocks. Answer: b: 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. : 300,000 km, 18 million km, 100 million km, 1. 08 billion km, 9. 46 trillion km. Answer: d: suppose we look at a photograph of many galaxies. Answer: c: suppose we imagine the sun to be about the size of a grapefruit.
