Unit 1 Test ASTRO 2023

Question 1 2 / 2 pts Two planets have the same radius. If Planet A is 5 times more massive than Planet B, how does gravity differ on the surfaces of the two planets? gravity is 5 times stronger on Planet B gravity is 5 times stronger on Planet A gravity is 25 times stronger on Planet A gravity is 25 times stronger on Planet B gravity is equal on Planet A and Planet B Question 2 2 / 2 pts A planet in a nearly circular orbit with its rotation axis tilted by 5 degrees relative to its orbital plane around its star would: have longer days and nights than those of Earth have very severe seasons compared to Earth have shorter years than those of Earth have shorter days and nights than those of Earth have seasons that are not very different from each other as compared to Earth. Question 3 2 / 2 pts If the Moon phase is full, what phase would the Earth appear to be in when viewed from the Moon? Full First Quarter New Third Quarter Waxing Gibbous Incorrect Question 4 0 / 2 pts The North star is a star in the constellation of Ursa Minor, which lies just above the North pole of Earth. Which of the following is true? Ursa Minor is a Zodiac constellation in the winter but not in the summer. Ursa Minor is a Zodiac constellation in the summer but not in the winter. Ursa Minor is not a Zodiac constellation. The Zodiac constellations are located near the axis below the South pole. Ursa Minor is a Zodiac constellation all year. Question 5 2 / 2 pts As compared to a cool star, a hotter star emits: Continues...