[Astro 3] Chapter 6: Questions Flashcards | Quizlet

Upgrade to Quiz … Try the fastest way to create flashcards [Astro 3] Chapter 6: Questions 9 studiers in 3 days Leave the first rating How is Einstein's famous equation, E = mc 2, important in understanding the Sun? a. the Sun is extremely massive b. the Sun has a magnetic field strong enough to influence the atmospheres of the planets c. the Sun's surface temperature is about 6,000 ° Celsius d. the Sun generates energy to shine by losing 4 2 / 20 Flashcards Learn Test Match Q-Chat Share Created by theyingwu Students also viewed Terms in this set (20) Try Magic Notes and save time Upload notes Astronomy 7 15 terms Sadara13 Preview Astronomy Ch 7 - concept 15 terms elizabeth_flores658 Previe Your stats Still learning (1) You've started learning these terms. Keep it up! Not studied (19) You haven't studied these terms yet! Select this one Compared to the distance between Earth and Mars, the distance between Jupiter and Saturn is __________. a. about the same b. just slightly less c. much larger d. much smaller c. Select these 19 How is Einstein's famous equation, E = mc 2, important in understanding the Sun? a. the Sun is extremely massive b. the Sun has a magnetic field strong enough to influence the atmospheres of the planets c. the Sun's surface temperature is about 6,000 ° Celsius d. the Sun generates energy to shine by losing 4 million tons of mass each second d. In what way is Venus most similar to Earth? a. Both planets have similar surface geology. b. Both planets are nearly the same size. c. Both planets have warm days and cool nights. d. Both planets have very similar atmospheres. b. Which planet listed below has the most extreme seasons? a. Earth b. Jupiter c. Mars d. Uranus d. Which of the following is not a major pattern of motion in the solar system? a. Nearly all comets orbit the Sun in same direction and roughly the same plane. b. All of the planets orbit the Sun in the same direction - counterclockwise as viewed from above Earth's north pole. c. The Sun and most of the planets rotate in the same direction in which the planets orbit the Sun. d. Most of the solar system's large moons orbit in their planet's equatorial plane. a. Which of the following is not a major difference between the terrestrial and jovian planets in our solar system? a. Jovian planets have rings and terrestrial planets do not. b. Terrestrial planets are higher in average density than jovian planets. c. Terrestrial planets orbit much closer to the Sun than jovian planets. d. Terrestrial planets contain large quantities of ice and jovian planets do not. d. The following statements are all true. Which one counts as an "exception to the rule" in being unusual for our solar system? a. Venus does not have a moon. b. The diameter of Earth's Moon is about 1/4 that of Earth. c. Saturn has no solid surface. d. Jupiter has a very small axis tilt. b. According to our theory of solar system formation, which law best explains why the solar nebula spun faster as it shrank in size? a. The law of universal gravitation b. Einstein's law E = mc 2 c. The law of conservation of energy d. The law of conservation of angular momentum d. According to our theory of solar system formation, which law best explains why the central regions of the solar nebula got hotter as the nebula shrank in size? a. The law of conservation of energy b. The two laws of thermal radiation c. Newton's third law d. The law of conservation of angular momentum a. According to our present theory of solar system formation, which of the following best explains why the solar nebula ended up with a disk shape as it collapsed? a. It was fairly flat to begin with, and retained this flat shape as it collapsed. b. It flattened as a natural consequence of collisions between particles in the nebula. c. The law of conservation of energy. d. The force of gravity pulled the material downward into a flat disk. b. What is the primary basis upon which we divide the ingredients of the solar nebula into four categories (hydrogen/helium; hydrogen compound; rock; metal)? a. The temperatures at which various materials will condense from gaseous form to solid form. b. The atomic mass numbers of various materials. c. The amounts of energy required to ionize various materials. d. The locations of various materials in the solar nebula. a. According to our present theory of solar system formation, which of the following statements about the growth of terrestrial and jovian planets is not true? a. The terrestrial planets formed inside the frost line of the solar nebula and the jovian planets formed beyond it. b. The jovian planets began from planetesimals made only of ice, while the terrestrial planets began from planetesimals made only of rock and metal. c. Swirling disks of gas, like the solar nebula in miniature, formed around the growing jovian planets but not around the growing terrestrial planets. d. Both types of planet begun with planetesimals growing through the process of accretion, but only the jovian planets were able to capture hydrogen and helium gas from the solar nebula. b. Many meteorites appear to have formed very early in the solar system's history. How do these meteorites support our theory about how the terrestrial planets formed? a. The meteorites appearance and composition is just what we'd expect if metal and rock condensed and accreted as our theory suggests. b. Their overall composition is just what we believe the composition of the solar nebula to have been: mostly hydrogen and helium. c. The meteorites sizes are just what we'd expect if metal and rock condensed and accreted as our theory suggests. d. Their appearance and composition matches what we observe in comets today, suggesting that they were once pieces of icy planetesimals. a. According to our present theory of solar system formation, how did Earth end up with enough water to make oceans? a. The water was brought to the forming Earth by planetesimals that accreted near Earth's orbit. b. Earth formed at a distance from the Sun at which liquid water happened to be plentiful in the solar nebula. c. The water was brought to the forming Earth by planetesimals that accreted beyond the orbit of Mars. d. The water was formed by chemical reactions among the minerals in the Earth's core. c. According to our basic scenario of solar system formation, why do the jovian planets have numerous large moons? a. As the growing jovian planets captured gas from the solar nebula, the gas formed swirling disks around them, and moons formed from condensation accretion within these disks. b. The many moons of the jovian planets remains one of the unexplained mysteries of the formation of our solar system. c. Because of their strong gravity, the jovian planets were able to capture numerous asteroids that happened to be passing nearby, and these became the major moons of the jovian planets. d. The large moons of the jovian planets originally formed in the inner solar system and these moons then migrated out to join up with the jovian planets. a. Which of the following is not evidence supporting the idea that our Moon formed as a result of a giant impact? a. The Moon's average density suggests it is made of rock much more like that of the Earth's outer layers than that of the Earth as a whole. b. The Moon has a much smaller proportion of easily vaporized materials than Earth. c. The Pacific Ocean appears to be a large crater - probably the one made by the giant impact. d. Computer simulations show that the Moon could really have formed in this way. c. Why are terrestrial planets denser than jovian planets? a. Actually, the jovian planets are denser than the terrestrial planets. b. The terrestrial planets formed in the inner solar nebula, where only dense materials could condense. c. Gravity compresses terrestrial planets to a higher degree, making them denser. d. The Sun's gravity gathered dense materials into the inner solar system. b. About 2% of our solar nebula consisted of elements besides hydrogen and helium. However, c. Search for flashcards ansas State Fair