Astronomy: Chapter 7 Test
Astronomy: Chapter 7 Test Phys 1050
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This 4 page Study Guide was uploaded by Chris Pulcher-Coard on Sunday April 3, 2016. The Study Guide belongs to Phys 1050 at North Carolina Central University taught by Tanina Bradley in Spring 2016. Since its upload, it has received 21 views.
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Date Created: 04/03/16
Astronomy Chapter 7 Test 15 out of 15 Question 1 1. Jupiter's Great Red Spot is similar to a hurricane on Earth except for its size. True False 1 points Question 2 1. Changes in the predicted motion of Uranus led to the search for an eighth planet. True False 1 points Question 3 1. All four jovian planets are made primarily of hydrogen and oxygen. True False 1 points Question 4 1. Of the jovian planets, which generates the least internal heat? Pluto Neptun e Uranus Saturn Jupiter 1 points Question 5 1. A gravitational assist, or slingshot, can be used to either speed up or slow down a spacecraft. True False 1 points Question 6 1. Why does Saturn radiate even more excess heat than Jupiter? Only Saturn is still radiating heat left over from its formation. Saturn is more massive than Jupiter, so its gravitational compression is stronger. Saturn's atmosphere contains much methane, which is very flammable. Helium rain falling inward generates heat as it descends. Saturn's thick clouds give it a stronger greenhouse effect. 1 points Question 7 1. Which common gas is less abundant in the top of Saturn's atmosphere, compared to what we observe at Jupiter? nitrogen helium hydroge n argon methane 1 points Question 8 1. The equators of all four jovian planets rotate more rapidly than the polar regions. True False 1 points Question 9 1. The axial tilts of Uranus and Neptune are similar. True False 1 points Question 10 1. Differential rotation is when a planet's equatorial and polar regions rotate at different rates. True False 1 points Question 11 1. Alternating zones of rising and sinking gas in Jupiter's atmosphere produced the ring system discovered by Voyager. circle the planet from pole to pole. generate magnetic fields. create light and dark bands. cause Jupiter's magnetic field to ripple. 1 points Question 12 1. The reason the jovian planets lost very little of their original atmosphere is due to their many moons. rapid rotation. large mass. ring systems. strong magnetic fields. 1 points Question 13 1. At which planet can the pole remain in darkness for 42 years, then have 42 years of constant daylight? Pluto Saturn Neptun e Uranus Jupiter 1 points Question 14 1. The two outer jovian planets appear bluish in color because hydrogen and helium are both blue in large concentrations. from their distance, the Sun would appear hotter and bluer than from Earth. ammonia absorbs blue light well. methane gas in their atmospheres absorbs red light well. dust motes in their atmospheres scatter blue well, just as in our own blue sky. 1 points Question 15 1. Saturn is less dense than water. True False
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