Test Answers on Astronomy Flashcards

Astronomy Chapter 23 Sorting Task

Although we can divide the history of the universe into many distinct \”eras,\” sometimes it’s useful just to have a broad perspective on what events occurred in the very early universe and what events occurred later. Listed following are events that occurred either before or after the first five minutes in the history of the […]

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Astronomy Exam 1

Which of the following has your \”cosmic address\” in the correct order? You, Earth, solar system, Milky Way Galaxy, Local Group, Local Supercluster, universe. Using the ideas discussed in your textbook, in what sense are we \”star stuff\”? Nearly every atom from which we are made was once inside of a star. How are galaxies […]

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Astronomy Quiz 2

The Sun’s path, as viewed from the equator, is highest in the sky on _________. the spring and fall equinoxes For most of history, the lack of observable stellar parallax was interpreted to mean that _________. Earth is stationary at the center of the universe Which of the following statements about the celestial sphere is […]

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Exam #2 Mastering Astronomy (missed questions)

The main reason that most professional research telescopes are reflectors is that: large mirrors are easier to build then large lenses Primary purpose of astronomical Telescope? to collect a lot of light and bring it to focus Most important advantage of CCD’ over film is? they record much more light in a given exposure time […]

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Astronomy 263 Chp 8 Purdue

______, ________, and ________ build up structures on the terrestrial planets, while ______ tears them down a.impacts, erosion, volcanism; tectonism b. impacts, tectonism, volcanism; erosion c. tectonism, volcanism, erosion; impacts d. tectonism, impacts, erosion; volcanism ANSWER B IMPACTS, TECTONISM, VOLCANISM; EROSION If crater A is inside crater B, we know that a. crater A was […]

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Mastering Astronomy Review #5

Assuming that other planetary systems form in the same way as our solar system formed, where would you expect to find terrestrial planets? Terrestrial planets will likely be located nearer the planetary system’s star than any jovian planets. Which planet is approximately halfway between Pluto’s orbit and the Sun? Uranus, the seventh planet from the […]

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Chapter 18 Astronomy

Part A The history of the universe can be divided into seven major phases. Taken together, these phases make up the cosmic evolutionary scheme—the continuous transformation of matter and energy that has led to the appearance of life and civilization on Earth. Rank the phases in the history of cosmic evolution from earliest to most […]

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Astronomy final

Sizes of universe- largest to smallest The universe, the local supercluster, the local group, the Milky Way Galaxy, our solar system, the sun, Jupiter, earth Distances from longest to shortest The distance from the Milky Way Galaxy to the Andromeda Galaxy, The distance from the sun to the center of the Milky Way Galaxy, The […]

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ASTRONOMY 101

1. What is the main mechanism by which the lower atmosphere of Earth is heated? a. Sunlight heats Earth’s surface and the resultant heat is transferred to the atmosphere by infrared radiation and convective gas motions. b. Conduction carries heat from Earth’s interior to the surface where conduction in the lower atmosphere transfers this heat […]

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Astronomy Ch01.6: Key Concept: Our Cosmic Origins

Part A – Ranking Task Consider the indicated events in the history of the universe that have helped make human life possible. Rank the events based on when they occurred, from longest ago to most recent. To rank items as equivalent, overlap them. Note: If two events occurred within seconds of each other, rank them […]

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Mastering Astronomy Chapter 18 – Life – Tutorials Aid

The history of the universe can be divided into seven major phases. Taken together, these phases make up the cosmic evolutionary scheme—the continuous transformation of matter and energy that has led to the appearance of life and civilization on Earth. Rank the phases in the history of cosmic evolution from earliest to most recent. -Particulate […]

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astronomy 1020

How do observations of distant galaxies help us learn about galaxy evolution? Observations at different distances show galaxies of different ages and therefore different stages of evolution. I observe a galaxy that is 100 million light-years away: what do I see? the light from the galaxy as it was 100 million years ago and it […]

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Mastering Astronomy Chapter 16-17

Why is dark matter is inferred to exist? Because we can observe its gravitational influence on visible matter Dark energy has been hypothesized to exist in order to explain what? Observations suggesting that the expansion of the universe is accelerating The flat part of the Milky Way’s rotation curve tells us that stars in the […]

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ASTRO WK 7 mastering astronomy chp 22

Which of the following is an important starting assumption in models of galaxy formation? Some regions in the universe start out denser than others. What happens when a particle of matter meets its corresponding antiparticle of antimatter? The combined mass of the two particles is completely transformed into energy (photons). What happens to gas as […]

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Astronomy Chapter 1 Practice Questions

Which of the following is not a general difference between a planet and a star? All planets are made of rock and all stars are made of gas. Our solar system consists of _________. the Sun and all the objects that orbit it A typical galaxy is a _________. collection of a few million to […]

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Mastering Astronomy Chapter 2

Which of the following statements about the celestial sphere is NOT true? The \”celestial sphere\” is another name for our universe. The Andromeda Galaxy is faintly visible to the naked eye in the constellation Andromeda. Suppose instead it were located in the same direction in space as the center of the Milky Way Galaxy (but […]

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Astronomy 1010 hw 1 part 1

Which of the following has your address in the right order? You, earth, solar system, milky way, local group, local supercluster About where is our solar system located in the milky way galaxy? about two-thirds of the way from the center of the galaxy to the outskirts of the galactic disk Roughly how many stars […]

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Ch17 – Astronomy final

which part of the galaxy contains the coldest gas? the disk what part of the galaxy has gas with the hottest average temperature the halo What is the typical percentage (by mass) of elements other than hydrogen and helium in stars that are forming right now in the vicinity of the Sun? 2% Where would […]

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astronomy chapter 1

What is the meaning of the word cosmos? the sum total of all matter and energy that is everything within and between all galaxies Which of the following has your \”address\” in the correct order? you, Earth, solar system, Milky Way, Local Group, Local Supercluster About where is our solar system located within the Milky […]

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Chapter 17 astronomy

Based on our current understanding of physics, we can understand the conditions that prevailed in the early universe as far back in time as about ___________. one ten-billionth of a second after the Big Bang What happens when a particle of matter meets its corresponding antiparticle of antimatter? The combined mass of the two particles […]

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Mastering Astronomy Chapter 1

If we represent the solar system on a scale that allows us to walk from the Sun to Pluto in a few minutes, then: the planets would all be marble size or smaller and the nearest stars would be thousands of miles away. What do astronomers mean by the Big Bang? the event that marked […]

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