No Service4:59 PM@ 35%attachments.office.net1. What is the most common element in the Universe?2. What is the distance between the Earth and the Sun? (oneword)3. What is the point where the Earth is furthest away from theSun?4. What do you call the model that the Sun is at the center ofthe Universe?5. What constellation is Polaris observed?6. What is the phase of the Moon?7. What do you call the longest day of the year in thesouthern hemisphere?8. When is the longest day of the year in the southernhemisphere?9. Over what latitude is the Sun at 12PM on the vernalequinox?10. Who first observed sunspots?11. Who showed that the orbit of planets around the Sun iselliptical?12. Which planet is second furthest from the Sun?13. Stars in a constellation areA. physically close to each other.B. usually equal in brightness.C. about the same age.D. about the same distance away.E. in the same part of the sky.14. Who was the first astronomer to use a telescope?A. GalileoB. NewtonC. BraheD. al-FazariE. None of these

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Horizons: Exploring the Universe (MindTap Course List)

14th Edition

ISBN:9781305960961

Author:Michael A. Seeds, Dana Backman

Publisher:Michael A. Seeds, Dana Backman

Chapter11: Neutron Stars And Black Holes

Section: Chapter Questions

Problem 3P

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1. Which of these is true about the Big Bang model? a. The singularity is an established, well-defined part of the model. b. Cosmic expansion stopped at some point in time. c. Part of its proof is the amounts of H and He we have in the universe today. d. The Big Bang was a big explosion that threw matter into many different directions
How does the age of the universe relate to the Hubble constant? a. The smaller the constant, the older the universe. b. The larger the constant, the older the universe. c. The Hubble constant is the age of the universe. d. The Hubble constant is the square of the universe. e. It is impossible to tell the age of the universe from the Hubble constant.
If our universe is expanding, what are the implications for the separation between two stars within our galaxy? A. The two stars are moving farther apart. B. The two stars are moving closer together. C. The distance between the two stars is unaffected. D. The question is impossible to answer without more information.
1. For a fixed baseline, at what point does parallax cease to be an accurate technique for measuring distance? 2. What are two ways that you could more accurately measure the distance to an object using parallax?
1. If people on Earth were viewing a total lunar eclipse, what would you see from your home on the Moon? Draw a diagram. 2. Why were the main reasons why the idea that the Earth was at the center of the universe lasted so long? 3. Discuss in 2 paragraphs the observations made by Galileo that disproved Geocentrism. Which one do you think was the most important? 4. Write down a hypothesis and observational experiment to test one of Newton’s laws of motion. EXPLAIN YOUR REASONING! 5. One of the first exoplanets discovered orbits the star 51 Pegasi with a period of just 4.2 days. 51 Pegasi is very similar to the Sun. Use Kepler’s laws to find the distance (in astronomical units) between the planet (unofficially named Bellerophon) and its star. SHOW YOUR WORK! 6. How does halving the distance between two objects affect the gravitational force between them? 7. Suppose the Sun were somehow replaced by a star with five times as much mass. What would happen to the gravitational force between…
If you place your index just in front of you and try to look at it with you right eye open and your left eye close, then look at it with your left eye open and right eye close this time. You will notice that there is a slight change of the position of your index finger. What concept is applied how astronomers were able to measure the distance of heavenly bodies from the Earth? * A. Cosmic distance ladder B. Parallax C. Luminosity D. Transit
If you live at a location on the Earth’s northern hemisphere, when will the longest day of the year be? a.vernal equinox b.winter solstice c.summer equinox d.summer solstice e.winter equinox The history of the universe described by the Big Bang theory is separated into different eras. During which era was the predominant temperature of the Universe about 1 million Kelvin? a.The Plank Era b.The GUT Era c.The Electroweak Era d.The Era of Nuclei e.The Era of Atoms Some planets have very strong magnetic fields. What features must a planet have to cause this? a.both rapid rotation and a conducting liquid core b.only a rapid rotation c.only a liquid conducting core d.both a rapid rotation and a solid metallic core e.only a metallic core
Which of the following statements about stellar parallax is true? A. We observe all stars to exhibit at least a slight amount of parallax. B. Stellar parallax was first observed by ancient Greek astronomers. O C. The amount of parallax we see depends on how fast a star is moving relative to us. D. It takes at least 10 years of observation to measure a star's parallax. OE. The closer a star is to us, the more parallax it exhibits.
Apparent and Absolute Magnitude of Stars Participation Exercise Adapted from Lecture Tutorials for Introductory Astronomy workbook 1. What is the term that defines how bright an object actually is? 2. What is the term that defines how bright an object appears to be? 3. Comparing Saturn's apparent magnitude of -0.55 to Jupiter's apparent magnitude of -2.2, a. Which object appears brighter from Earth? How do you know? b. Give an apparent magnitude value of an object that is brighter than both Saturn and Jupiter. 4. If the Lady Gaga star has an apparent magnitude of 0.03 and is located 7.8 parsecs away from Earth, which of these values would be the most likely absolute magnitude? State your answer and explain your reasoning for your answer below the choices. a. -1.12 b. 0.03 c. 0.58 You will use the chart below to answer the following questions: Star Apparent Magnitude Absolute Magnitude A 4 5 B 2 0 C -2 -2 D 3 2 a. Which star appears brighter from Earth: Star A or Star B? Explain your…
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It is defined as the minimum speed an object must have to approach an infinite separation distance from a celestial body a.) Planetary motion b.) Escape speed c.) Equal areas d.) Orbital speed In the final derived equation for orbital speed, the m in the numerator stands for ____ a.) The mass of the body revolving around the more massive object. b.) The mass of the body moving away from the more massive object. c.) The mass of the object located in/beside/at the barycenter. d.) The mass of the object left by the escaping other object.
REVIEW atch the terms with the definitions. E astronomy .1) A. characterized by a completed round of events 2) star B. the theory that the Earth is the center of our universe 3) planet C. a large solid body in space that revolves about a star 4) geocentric D. a gaseous body that shines by its own light and emits heat A E. the science that investigates motions, physical make-up, distances, and other characteristics of all objects in space, including Earth 5) cyclical Il in the blanks. .6) "Star law" is the literal meaning of the word 1.7) Astronomy made gains as recognized science during Europe's or revival of learning. 1.8) Sumerian observers plotted the movements of our Sun, Moon, and other planets by dividing the sky into and made planets reverse 1.9) Ptolemy's theory that the existence of themselves at certain points on their journeys around Earth was incorrect. Choose the best answers. 1.10) A D Which two ways haye people found astronomy to be useful to their lives? A. navigation

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