Astronomy 1 Final Sample

Size: px
Start display at page:

Download "Astronomy 1 Final Sample"

Transcription

1 NAME: Part I: Multiple Choice(2 points. ea.) Choose the best answer for each question Questions 1-5 refer to the schematic model of the Milky Way Galaxy shown at right 1. Rank the following objects in size from smallest to biggest: (A) Earth < the Local Group < Milky Way < our Solar System (B) the Local Group < Milky Way < our Solar System < Earth (C) Earth < our Solar System < Milky Way < the Local Group (D) Milky Way < our Solar System < Earth < the Local Group 2. The Galactic nucleus A 3. The Galactic bulge 4. The disk 5. The Sun s location in the galaxy A B C 6. Globular clusters and stars in the galactic halo E 7. Where are stars being formed in the galaxy? (A) In the nucleus (B) in globular clusters (C) beyond the halo (D) in the spiral arms D 8. We cannot see the other side of the galaxy primarily because our view is blocked by (A) too many stars. (B) glowing interstellar gas. (C) planetary nebulae and supernova remnants. (D) interstellar dust. 9. What effect do interstellar dust particles have on the appearance of a distant star? (A) They make it look bluer and brighter. (B) They make it look bluer and dimmer. (C) They make it look redder and brighter. (D) They make it look redder and dimmer. 1/13

2 10. What did Harlow Shapley discover about globular clusters that allowed him to determine the size of the galaxy and the Sun s location within it? (A) The clusters are confined to a thin plane. (B) The clusters are all located at the same distance from the Sun. (C) The center of the distribution of clusters is far from the Sun. (D) All of the clusters are located in a region a few parsecs across. 11. Which of the following statements describes the mass in the outer part of the Milky Way(beyond the orbit of the sun)? (A) It emits a surprisingly small amount of light(that is, it is Dark Matter) (B) There is essentially no mass out there (C) There is no spiral arm structure in the outer galaxy (D) The outer part of the galaxy is rapidly evaporating into intergalactic space 12. A rotation curve for a galaxy, which astronomers use to measure mass, is a plot of (A) Orbital speed versus distance from center (B) Absolute Magnitude vs Temperature (C) Luminosity vs Spectral Class (D) Number of stars in a Spiral arm vs their age 13. How was Hubble able to determine the distances of nearby galaxies? (A) by using radar (B) by measuring trigonometric parallaxes (C) by measuring the typical angular separations of stars in them (D) by observing Cepheid variables in them 14. Hubble's original classification of galaxies was based on (A) the visual appearance of the galaxies. (B) the physical shape and size of the galaxies. (C) the dominant spectral class of stars. (D) a completely random selection. 15. The most massive galaxies in the universe are (A) Elliptical (B) Spiral (C) Barred spiral (D) Irregular 16. Which of the following is not one of the main categories for the classification of galaxies? (A) cylindrical (B) elliptical (C) spiral (D) irregular 2/13

3 17. A primary difference between spiral and elliptical galaxies is (A) All ellipticals are more massive than spirals. (B) Ellipticals have more extensive interstellar media than spirals. (C) Star formation has ceased in ellipticals, but not in spirals. (D) Spirals have more stars than ellipticals. 18. What evidence do we have that galaxies have extended haloes of dark matter? (A) Orbital speed in the rotation curve doesn t fall off for the outer parts of galaxies. (B) The outer parts of galaxies are intense infrared sources. (C) Light from background galaxies is blocked by the dark matter. (D) The orbits of distant globular clusters are distorted by the dark matter 19. Which of the following would be least useful in determining distances to other galaxies? (A) Parallax (B) Cepheid variables (C) The sizes of HII regions (D) The brightness of a supernova 20. A strong argument in favor of the theory that the universe is expanding is the observation of the (A) Ratio of helium to hydrogen of.25 (B) Red shift of galaxies. (C) Dark matter in galaxies. (D) Existence of quasars. 21. Which of the following is true of Seyfert galaxies? (A) They have no spiral arms (B) They have unusually bright nuclei (C) They are a form of elliptical galaxy (D) They are all found in the Local Group of galaxies 22. The radio emission from radio galaxies and quasars is due to (A) thermal emission (B) blackbody radiation (C) O and B stars (D) synchrotron radiation 23. How do we know that quasars are no larger than the solar system? (A) They vary in brightness on a timescale of days (B) They appear pointlike when viewed through a telescope (C) They contain black holes, which must be small (D) They are too luminous to be very large 24. Quasars all have great distances. Why are there no nearby quasars? (A) no quasars have existed in the recent past (B) quasars avoid spiral galaxies (C) quasars are found only in clusters of galaxies (D) if quasars are too close to us, they look like pulsars 3/13

4 25. Quasars, Seyfert galaxies and radio galaxies are thought to be powered by (A) alien artifacts. (B) supermassive black holes accreting in their cores. (C) recurring nova in orbiting globular clusters. (D) waves of star formation in spiral arms. 26. The maximum luminosity that the nucleus of a galaxy could have without pushing away surrounding matter is called the (A) spiral density wave. (B) event horizon. (C) mass-luminosity relationship. (D) Eddington luminosity. 27. The brightest quasars are (A) about 1% as bright as the Milky Way (B) as bright as the Milky Way (C) as bright as 10,000 Milky Way galaxies (D) about as bright as the Sun 28 Quasars are currently believed to be (A) an early phase of intense activity in the centers of galaxies. (B) the brightest elliptical galaxies. (C) the most luminous supernova remnants. (D) structures larger than clusters of galaxies. 29. Which of the these describes the tendency of galaxies to form in groups (A) galaxies are only found singly (B) galaxies are found only in small groups of a few members (C) galaxies are found both in small groups and large clusters (D) galaxies were in groups only in the early universe 30. The Local Group is: (A) a group of about galaxies containing the Milky Way galaxy. (B) the local group of Population II stars in the solar neighborhood. (C) a large supercluster of galaxies centered on the Milky Way. (D) all stars within 10 pc. of the sun 31.A cluster of galaxies is consider rich if (A) it contains more helium than hydrogen (B) it has a large number of galaxies (C) a large fraction of its mass consists of hot intergalactic gas (D) it contains numerous quasars 32. Evidence for dark matter surrounding massive galactic clusters comes from what observation? (A) Huge visible galactic jets that contain large quantities of dark matter. (B) Motions of individual galaxies rapidly collapsing towards an invisible gravitational source. (C) Colliding neutron stars, with the collision energy creating dark matter. (D) Arcs caused by a gravitational deflection of light(gravitational lensing). 4/13

5 33. The model of cluster formation in which galaxies form first and then collect into clusters is called the (A) implosion model. (B) hierarchical clustering model. (C) pancake model. (D) top-down model. 34. The point in space towards which nearby clusters of galaxies appear to be moving is referred to as (A) The Great Attractor. (B) The Whole Shebang. (C) LGM. (D) The Big Crunch. 35. Which of the following is not true of the cosmic background radiation? (A) it is nearly equally bright in all directions (B) it is starlight (C) it was produced about a million years after the beginning of the expansion (D) it is brightest in the radio (microwave) part of the spectrum 36. What produced the radiation that we see as the today as the 3 degree cosmic background radiation? (A) stars (B) hot glowing gas. (C) neutrinos (D) supernovae 37. An observer now located at a distance of 3 billion light years from us could look in our general direction and see (A) Most of the galaxies approaching him or her. (B) The same Hubble's law that we see. (C) About equal numbers of red and blue shifted galaxies. (D) Everything rushing away from a point near the Milky Way galaxy 38. The expansion age of the universe is about (A) 12 to 14 million years. (B) 12 to 14 billion years. (C) 120 to 140 billion years. (D) 1200 to 1400 billion years. 39. What was the universe made of one hour after it began to expand? (A) hydrogen and helium (B) carbon and oxygen (C) iron and nickel (D) potassium and carbon 5/13

6 40. The conversion of hydrogen into helium began about 2 minutes after the beginning of the expansion of the universe. Why was there no helium in the universe during the first 2 minutes? (A) There was no matter in the universe during the first 2 minutes. (B) Collisions were too violent for helium to be stable during that time. (C) No collisions occurred during the first two minutes. (D) Neutrino disruption dominated during the first two minutes. 41. Which factors will determine whether the universe will expand for ever or will eventually collapse in a Big Crunch? (A) High density, small expansion rate, no dark energy (B) High density, large expansion rate, no dark energy. (C) Low density, large expansion rate, dominated by dark energy (D) Low density, small expansion rate, dominated by dark energy 42. Where in the universe did the Big Bang occur? (A) very close to the Milky Way galaxy (B) at the center (C) near the Virgo cluster. (D) everywhere. 43. Imagine that a year from now you read that astronomers have discovered a group of 50 billion-year-old stars. What would you conclude from such a discovery? (A) They must be spectral class O and B stars (B) They must be in a late stage of stellar evolution (C) We would have to revise our theories of stellar energy sources (D) Our present ideas on evolution of the universe and its current age are seriously in error 44. How many exoplanets have been discovered so far? (A) none. (B) 3. (C) almost 12. (D) almost 2000, with over 4000 candidates still under study as of About how long ago did life originate on Earth? (A) 35 million year (B) 350 million years (C) 3.5 billion years (D) 35 billion years 46. A habitable zone (A) is a region around a star where an earth sized planet could have liquid water on its surface. (B) is a region on a particular planet where life might exist comfortably. (C) is a region in the galaxy where alien civilizations have been detected by their radio emissions. (D) is the region in a supercluster where galaxy formation is currently taking place. 6/13

7 47. Billions of years from now, the habitable zone of the solar system will not include the Earth but will include (A) Mars. (B) Mercury. (C) Venus. (D) the Moon. 48. As with life on earth, we expect that life on other planets would most likely be chemically based upon (A) carbon and methanol. (B) carbon and ethanol. (C) silicon and carbon. (D) carbon and water. 49. The probability of detecting alien civilizations is often based upon (A) The Roche Limit. (B) The Heisenberg Uncertainty Principle. (C) The Drake Equation. (D) idle speculation by the uninformed. 50. SETI stands for (A) Signal Enhancement Through Interferometry. (B) Search for Extraterrestrial Intelligence. (C) Satellite Examination of Technological Images. (D) Studies of Europa s Tidal Icefields. (you re half-way done!) 51. As seen from Schuylkill Haven, the sun, moon stars and planets, over the course of an evening, will tend to (A) do different things depending upon the season. (B) the sun rises in the east and sets in the west, the others rise in the west and set in the east.. (C) rise in the east and set in the south. (D) rise in the east and set in the west. 52. A finger, held at arm's length, fills an angle of about (A) 10 degrees (B) 2 degrees (C) ½ degree (D) a minute 53. The angular size of the Sun and Moon are both about (A) ½ a degree. (B) ½ of a great circle. (C) ½ of an angstrom. (D) ½ a second. 7/13

8 54. The Sun's annual path on the celestial sphere is the which takes it through the. (A) Zenith, Planets. (B) Equator, Tropics. (C) Meridian, Celestial Poles. (D) Ecliptic, Zodiac. 55. In Schuylkill Haven, on the day of the Winter Solstice (compared to any other day of the year) (A) the sunrise is as farthest south (B) the number of daylight hours is the least (C) the altitude of the sun at local noon (meridian crossing) is the lowest (D) all of the above 56. A planet's temporary backward motion relative to the stars, illustrated at right, is called (A) retrograde motion. (B) the big crunch (C) closed geometry. (D) elliptical motion. 57. Which of the following is a reason that the ancient Greek astronomers rejected Aristarchus' heliocentric model of the solar system? (A) it did not account for retrograde motions of the planets (B) it could not explain the phases of Venus (C) they could detect no stellar parallax (D) it could not account for the Coriolis effect 58.What body was located at the center of Ptolemy's model of the solar system? (A) The Sun (B) The Moon (C) The Earth (D) The central fire 59. Which of the following best completes this sentence: When tested against the observed motion of the planets, (A) Ptolemy s model was least accurate, Kepler s was more accurate and Copernicus s was most accurate. (B) Ptolemy s model was least accurate, Copernicus s was more accurate and Kepler s was most accurate. (C) Ptolemy s model was most accurate, Copernicus s was less accurate and Kepler s was least accurate. (D) Ptolemy s model and Copernicus s were about equally accurate, and Kepler s was more accurate. 8/13

9 (for 60-63) Match the element of the Copernican model below with its observation consequence: A. Earth's motion around object. B. Motion of object around earth. C. Earth overtakes Object. D. Earth rotates. 60. The moon's monthly motion 61. Mars undergoing retrograde motion 62. The sun moves west to east along the ecliptic 63. The sun moves east to west daily 64.If the distance between two objects is decreased, the force of gravity they exert on each other will (A) remain the same (B) increase (C) decrease (D) vanish 65. Newton's theory of Universal Gravitation, combined with mechanics (A) was important because it described both earthly and cosmic phenomena using the same principles. (B) explained falling objects and projectile motion. (C) explained Kepler's Laws. (D) all of the above. 66. Which of the following principles from Optics are relevant to telescopes? (A) Refraction(light rays bend at interfaces). (B) Reflection(light rays bounce at surfaces). (C) Diffraction(light waves bend around corners). (D) all of the above 67.What happens to the electromagnetic radiation emitted by a blackbody if the blackbody gets hotter? (A) It would get redder and dimmer (B) It would get redder and brighter (C) It would get bluer and dimmer (D) It would get bluer and brighter 68. In an atmosphere composed of a mixture of gases at a particular temperature, the molecules that move slowest are those that have (A) the biggest diameter (B) the largest chemical formula (C) the most mass (D) the least mass 9/13

10 69. The age of the earth is estimated at roughly: (A) 4.6 trillion years. (B) 4.6 billion years. (C) 4.6 million years. (D) less than 6 thousand years. 70. What is the origin of the Earth's magnetic field? (A) pockets of solar magnetism captured from the solar wind. (B) permanent magnetism left over from the formation of the Earth. (C) the flow of ionized gases in the Earth's upper atmosphere. (D) convection currents in the Earth's molten iron core which create an electric dynamo. 71. The process by which gravitational forces separate material of different densities within the planetary interior is called (A) Subduction. (B) Homogenization. (C) Differentiation. (D) Transvection. 72. Compared to the lunar uplands(the terrae), the lunar maria are (A) Smoother and older (B) Smoother and younger. (C) More cratered and older (D) More cratered and younger 73. Consider the following hypothetical situation. A spacecraft lands on a moon of one of the planets. The moon has a smooth surface resembling that of the lunar maria. The rocks on the surface are found to be 4.5 billion years old. Why would such a finding be highly unusual? (A) Such rocks are far older than any found on the Earth's moon. (B) If the surface is that old, it should be heavily cratered. (C) The maria rocks on the Earth's moon are much older than 4.5 billion years. (D) There should not be rocks on maria. 74. Both the moon and Mercury have very large temperature variations between day and night. The main reason for this large variation is: (A) rocky composition. (B) distance from the sun. (C) small mass. (D) lack of atmosphere. 75. Why is the surface of Venus so hot? (A) Venus absorbs nearly all of the solar radiation that strikes it (B) Infrared radiation emitted by the surface can't escape into space (C) Frequent volcanic eruptions heat the lower atmosphere (D) The surface is heated by radioactivity in surface rocks 10/13

11 76. By observing the orbits of the two satellites of Mars, we can determine Mars' (A) diameter. (B) temperature. (C) mass. (D) moisture content. 77. The Jovian planets (A) all have orbits larger than the orbit of Mars. (B) are the Jupiter-like planets. (C) have atmospheres containing mostly hydrogen and helium. (D) all of the above. 78. The variation between pole and equatorial rotation rates for a Jovian planet (A) is called differential rotation. (B) is evidence that the planet is fluid. (C) has never actually been observed. (D) both(a) and(b) above. 79. Which of the following planets has the lowest density? (A) Mercury. (B) Venus. (C) Mars. (D) Saturn. 80. What would happen to an asteroid that came within the Roche limit of a planet? (A) It would be ejected at twice the speed it originally had. (B) It would be destroyed by tides. (C) It would be captured and become a satellite. (D) It would be burned up in the atmosphere of the planet. 81. What are the most notable surface features of Jupiter's satellite Io? (A) Volcanoes (B) Grooved ridge systems (C) Regions with high impact crater densities (D) Smooth regions produced by flows of liquid water 82. Most of the asteroids have orbits that lie between the orbits of (A) Mars and Jupiter (B) Venus and the Earth (C) the Earth and Mars (D) Jupiter and Saturn 11/13

12 83. Impacts (A) have created craters throughout the solar system, from the inner planets, the asteroids, the moons of the gas giants to the Trans-Neptunian Objects like Pluto and Charon. (B) were much more frequent in the early history of the solar system, about 4 billion years ago. (C) have recently been directly observed happening to Jupiter, both in 1994 with the impact of comet Shoemaker-Levy 9 and in the last few weeks, as captured on camera by amateur astronomer Gerrit Kernbauer. (D) all of the above. 84. As Earth orbit's the sun, stars will undergo an apparent shift in direction. (A) This shift is called parallax and the smaller the shift the greater the star's distance from Earth. (B) This shift is called parallax and the smaller the shift the smaller the star's distance from Earth. (C) This shift is called spectroscopy and the greater the shift the greater the star's temperature compared to our Sun's. (D) This shift is called parsecs and the greater the shift the greater the star's mass compared to our Sun's. Questions refer to the figure below which is a graphical representation of a group of stars. Identify each type of star by its labeled location on the diagram. A 85. White Dwarf stars. 86. Main Sequence stars. 87. Giants stars. 88. Supergiants(Asymptotic Giant Branch) stars. L u m i n o s i t y D C B 89. The sun will run out of fuel in its core in about (A) 5 thousand years (B) 5 million years (C) 5 billion years (D) 5 trillion years Hot Temperature Cold 90. Which are the two most abundant elements in the sun? (A) hydrogen and helium. (B) helium and uranium. (C) hydrogen and sodium. (D) hydrogen and iron 12/13

13 91. New stars are formed from (A) the collision of one or more stars (B) coalescence of planets (C) the gas in the interstellar medium (D) cosmic rays trapped in a magnetic field 92.What marks the transition from protostar to star? (A) the star begins to rotate (B) hydrogen fusion begins (C) the star first becomes luminous (D) the star becomes hot enough to ionize hydrogen 93. According to nebular theories, the planets formed from material that was (A) part of the collapsing cloud which formed the Sun (B) captured by the Sun from interstellar space (C) pulled from the Sun during a collision with another star (D) ejected from the Sun by an explosion For Questions 94-97: Match the type of star with the type of pressure which supports it: 94. neutron degeneracy pressure (A) Neutron Star 95. normal gas pressure 96. electron degeneracy pressure 97. none: object has collapsed gravitationally (B) Main Sequence Star (C) White Dwarf (D) Black Hole 98. A star which is discovered to be a binary system on the basis of the Doppler shifts of the spectral lines of its two stars is called a (A) spectroscopic binary (B) eclipsing binary (C) visual binary (D) astrometric binary 99. The Roche lobe is (A) the region around one of the stars in a binary system where the gravity of that star dominates (B) the type of star formed when a black hole becomes to massive to support itself (C) a cluster of stars which all have the same mass (D) the source of radio emissions in a pulsar 100. When a black hole is part of a close binary star system, the system may be a strong source of x-rays. Where do the x-rays come from? (A) the companion star, which is heated by the black hole. (B) a disk of hot matter around the black hole. (C) from the black hole itself. (D) from planets which are captured by the black hole. 13/13

Astronomy I Exam I Sample Name: Read each question carefully, and choose the best answer.

Astronomy I Exam I Sample Name: Read each question carefully, and choose the best answer. Name: Read each question carefully, and choose the best answer. 1. During a night in Schuylkill Haven, most of the stars in the sky (A) are stationary through the night. (B) the actual motion depends upon

More information

Astronomy I Exam 2 Sample

Astronomy I Exam 2 Sample NAME: Part I: Multiple Choice (2 points. ea.) Read carefully, choose the best answer 1. Which of the following occurs because of the orbital motion of the Earth about the Sun and cannot be accounted for

More information

Astronomy 1504 Section 10 Final Exam Version 1 May 6, 1999

Astronomy 1504 Section 10 Final Exam Version 1 May 6, 1999 Astronomy 1504 Section 10 Final Exam Version 1 May 6, 1999 Reminder: When I write these questions, I believe that there is one one correct answer. The questions consist of all parts a e. Read the entire

More information

Beyond Our Solar System Chapter 24

Beyond Our Solar System Chapter 24 Beyond Our Solar System Chapter 24 PROPERTIES OF STARS Distance Measuring a star's distance can be very difficult Stellar parallax Used for measuring distance to a star Apparent shift in a star's position

More information

The Night Sky. The Universe. The Celestial Sphere. Stars. Chapter 14

The Night Sky. The Universe. The Celestial Sphere. Stars. Chapter 14 The Night Sky The Universe Chapter 14 Homework: All the multiple choice questions in Applying the Concepts and Group A questions in Parallel Exercises. Celestial observation dates to ancient civilizations

More information

29:50 Stars, Galaxies, and the Universe Final Exam December 13, 2010 Form A

29:50 Stars, Galaxies, and the Universe Final Exam December 13, 2010 Form A 29:50 Stars, Galaxies, and the Universe Final Exam December 13, 2010 Form A There are 40 questions. Read each question and all of the choices before choosing. Budget your time. No whining. Walk with Ursus!

More information

Exam 3 Astronomy 100, Section 3. Some Equations You Might Need

Exam 3 Astronomy 100, Section 3. Some Equations You Might Need Exam 3 Astronomy 100, Section 3 Some Equations You Might Need modified Kepler s law: M = [a(au)]3 [p(yr)] (a is radius of the orbit, p is the rotation period. You 2 should also remember that the period

More information

Astronomy 113. Dr. Joseph E. Pesce, Ph.D. Review. Semester Recap. Nature of Light. Wavelength. Red/Blue Light 4/30/18

Astronomy 113. Dr. Joseph E. Pesce, Ph.D. Review. Semester Recap. Nature of Light. Wavelength. Red/Blue Light 4/30/18 https://www.theverge.com/2018/ 3/10/17104188/melodysheeptime-lapse-universe-earthformation-watch Astronomy 113 Dr. Joseph E. Pesce, Ph.D. Review Semester Recap ³Light and Radiation ³The Sun ³Measuring

More information

Foundations of Astrophysics

Foundations of Astrophysics Foundations of Astrophysics Barbara Ryden The Ohio State University Bradley M. Peterson The Ohio State University Preface xi 1 Early Astronomy 1 1.1 The Celestial Sphere 1 1.2 Coordinate Systems on a Sphere

More information

Number of Stars: 100 billion (10 11 ) Mass : 5 x Solar masses. Size of Disk: 100,000 Light Years (30 kpc)

Number of Stars: 100 billion (10 11 ) Mass : 5 x Solar masses. Size of Disk: 100,000 Light Years (30 kpc) THE MILKY WAY GALAXY Type: Spiral galaxy composed of a highly flattened disk and a central elliptical bulge. The disk is about 100,000 light years (30kpc) in diameter. The term spiral arises from the external

More information

Prentice Hall EARTH SCIENCE

Prentice Hall EARTH SCIENCE Prentice Hall EARTH SCIENCE Tarbuck Lutgens Chapter 25 Beyond Our Solar System 25.1 Properties of Stars Characteristics of Stars A constellation is an apparent group of stars originally named for mythical

More information

Name Date Period. 10. convection zone 11. radiation zone 12. core

Name Date Period. 10. convection zone 11. radiation zone 12. core 240 points CHAPTER 29 STARS SECTION 29.1 The Sun (40 points this page) In your textbook, read about the properties of the Sun and the Sun s atmosphere. Use each of the terms below just once to complete

More information

The Big Bang Theory (page 854)

The Big Bang Theory (page 854) Name Class Date Space Homework Packet Homework #1 Hubble s Law (pages 852 853) 1. How can astronomers use the Doppler effect? 2. The shift in the light of a galaxy toward the red wavelengths is called

More information

Exam # 3 Tue 12/06/2011 Astronomy 100/190Y Exploring the Universe Fall 11 Instructor: Daniela Calzetti

Exam # 3 Tue 12/06/2011 Astronomy 100/190Y Exploring the Universe Fall 11 Instructor: Daniela Calzetti Exam # 3 Tue 12/06/2011 Astronomy 100/190Y Exploring the Universe Fall 11 Instructor: Daniela Calzetti INSTRUCTIONS: Please, use the `bubble sheet and a pencil # 2 to answer the exam questions, by marking

More information

Astronomy Stars, Galaxies and Cosmology Exam 3. Please PRINT full name

Astronomy Stars, Galaxies and Cosmology Exam 3. Please PRINT full name Astronomy 132 - Stars, Galaxies and Cosmology Exam 3 Please PRINT full name Also, please sign the honor code: I have neither given nor have I received help on this exam The following exam is intended to

More information

The Universe and Galaxies

The Universe and Galaxies The Universe and Galaxies 16.1 http://dingo.care-mail.com/cards/flash/5409/galaxy.swf Universe The sum of all matter and energy that exists, that has ever existed, and that will ever exist. We will focus

More information

Astronomy Today. Eighth edition. Eric Chaisson Steve McMillan

Astronomy Today. Eighth edition. Eric Chaisson Steve McMillan Global edition Astronomy Today Eighth edition Eric Chaisson Steve McMillan The Distance Scale ~1 Gpc Velocity L Distance Hubble s law Supernovae ~200 Mpc Time Tully-Fisher ~25 Mpc ~10,000 pc Time Variable

More information

Beyond the Solar System 2006 Oct 17 Page 1 of 5

Beyond the Solar System 2006 Oct 17 Page 1 of 5 I. Stars have color, brightness, mass, temperature and size. II. Distances to stars are measured using stellar parallax a. The further away, the less offset b. Parallax angles are extremely small c. Measured

More information

Physics HW Set 3 Spring 2015

Physics HW Set 3 Spring 2015 1) If the Sun were replaced by a one solar mass black hole 1) A) life here would be unchanged. B) we would still orbit it in a period of one year. C) all terrestrial planets would fall in immediately.

More information

Notes for Wednesday, July 16; Sample questions start on page 2 7/16/2008

Notes for Wednesday, July 16; Sample questions start on page 2 7/16/2008 Notes for Wednesday, July 16; Sample questions start on page 2 7/16/2008 Wed, July 16 MW galaxy, then review. Start with ECP3Ch14 2 through 8 Then Ch23 # 8 & Ch 19 # 27 & 28 Allowed Harlow Shapely to locate

More information

Star systems like our Milky Way. Galaxies

Star systems like our Milky Way. Galaxies Galaxies Star systems like our Milky Way Galaxies Contain a few thousand to tens of billions of stars,as well as varying amounts of gas and dust Large variety of shapes and sizes Gas and Dust in

More information

Chapter 33 The History of a Star. Introduction. Radio telescopes allow us to look into the center of the galaxy. The milky way

Chapter 33 The History of a Star. Introduction. Radio telescopes allow us to look into the center of the galaxy. The milky way Chapter 33 The History of a Star Introduction Did you read chapter 33 before coming to class? A. Yes B. No You can see about 10,000 stars with the naked eye. The milky way Radio telescopes allow us to

More information

Universe Celestial Object Galaxy Solar System

Universe Celestial Object Galaxy Solar System ASTRONOMY Universe- Includes all known matter (everything). Celestial Object Any object outside or above Earth s atmosphere. Galaxy- A large group (billions) of stars (held together by gravity). Our galaxy

More information

NSCI 314 LIFE IN THE COSMOS

NSCI 314 LIFE IN THE COSMOS NSCI 314 LIFE IN THE COSMOS 2 BASIC ASTRONOMY, AND STARS AND THEIR EVOLUTION Dr. Karen Kolehmainen Department of Physics CSUSB COURSE WEBPAGE: http://physics.csusb.edu/~karen MOTIONS IN THE SOLAR SYSTEM

More information

3. The planet with the largest valleys and tallest volcanoes in the Solar System is A) Mars B) Earth C) Jupiter D) Mercury E) Venus

3. The planet with the largest valleys and tallest volcanoes in the Solar System is A) Mars B) Earth C) Jupiter D) Mercury E) Venus Fall 2016 Astronomy Final Exam Test form C Name Do not forget to write your name on your answer sheet and above as well, and fill in your student ID bubbles and test form bubble C on your answer sheet.

More information

Fall 2016 Astronomy Final Exam Test form D. Name

Fall 2016 Astronomy Final Exam Test form D. Name Fall 2016 Astronomy Final Exam Test form D Name Do not forget to write your name on your answer sheet and above as well, and fill in your student ID bubbles and test form bubble D on your answer sheet.

More information

Fall 2016 Astronomy Final Exam Test form A. Name

Fall 2016 Astronomy Final Exam Test form A. Name Fall 2016 Astronomy Final Exam Test form A Name Do not forget to write your name on your answer sheet and above as well, and fill in your student ID bubbles and test form bubble A on your answer sheet.

More information

ASTRONOMY CURRICULUM Unit 1: Introduction to Astronomy

ASTRONOMY CURRICULUM Unit 1: Introduction to Astronomy Chariho Regional School District - Science Curriculum September, 2016 ASTRONOMY CURRICULUM Unit 1: Introduction to Astronomy OVERVIEW Summary Students will be introduced to the overarching concept of astronomy.

More information

The King's University College Astronomy 201 Mid-Term Exam Solutions

The King's University College Astronomy 201 Mid-Term Exam Solutions The King's University College Astronomy 201 Mid-Term Exam Solutions Instructions: The exam consists of two sections. Part A is 20 multiple choice questions - please record answers on the sheet provided.

More information

Learning Objectives: Chapter 13, Part 1: Lower Main Sequence Stars. AST 2010: Chapter 13. AST 2010 Descriptive Astronomy

Learning Objectives: Chapter 13, Part 1: Lower Main Sequence Stars. AST 2010: Chapter 13. AST 2010 Descriptive Astronomy Chapter 13, Part 1: Lower Main Sequence Stars Define red dwarf, and describe the internal dynamics and later evolution of these low-mass stars. Appreciate the time scale of late-stage stellar evolution

More information

AST Section 2: Test 2

AST Section 2: Test 2 AST1002 - Section 2: Test 2 Date: 11/05/2009 Name: Equations: E = m c 2 Question 1: The Sun is a stable star because 1. gravity balances forces from pressure. (!) Miniquiz 7, Q3 2. the rate of fusion equals

More information

Unit 1: The Earth in the Universe

Unit 1: The Earth in the Universe Unit 1: The Earth in the Universe 1. The Universe 1.1. First ideas about the Universe 1.2. Components and origin 1.3. Sizes and distances 2. The Solar System 3. The planet Earth 3.1. Movements of the Earth

More information

Formation of the Universe

Formation of the Universe A. The Universe 1. 2. 3. How did the universe begin? Only one exists or are there more? Composed of space and 100 billion galaxies A galaxy is a grouping of millions or billions of stars kept together

More information

What is the solar system?

What is the solar system? Notes Astronomy What is the solar system? 11.1 Structure of the Solar System Our solar system includes planets and dwarf planets, their moons, a star called the Sun, asteroids and comets. Planets, dwarf

More information

Astr 170B1 Sec 3 SOLUTIONS April 11, 2016

Astr 170B1 Sec 3 SOLUTIONS April 11, 2016 Correct responses in BOLDFACE. Brightness 1. Look at the graph at the left. What is the period for this star? a. 9 days b. 1 day c. 5.5 days d. 4.5 days e. need more information 2. Comets are comprised

More information

GALAXIES AND STARS. 2. Which star has a higher luminosity and a lower temperature than the Sun? A Rigel B Barnard s Star C Alpha Centauri D Aldebaran

GALAXIES AND STARS. 2. Which star has a higher luminosity and a lower temperature than the Sun? A Rigel B Barnard s Star C Alpha Centauri D Aldebaran GALAXIES AND STARS 1. Compared with our Sun, the star Betelgeuse is A smaller, hotter, and less luminous B smaller, cooler, and more luminous C larger, hotter, and less luminous D larger, cooler, and more

More information

Astr 170B1 Sec 3 SOLUTIONS April 11, 2016

Astr 170B1 Sec 3 SOLUTIONS April 11, 2016 Correct responses in BOLDFACE. 1. The metallic hydrogen in Jupiter's interior contributes to a. its rapid rotation b. its extreme temperature c. its extreme weather patterns d. its strong magnetic field

More information

Astr 170B1 Sec 3 SOLUTIONS April 11, 2016

Astr 170B1 Sec 3 SOLUTIONS April 11, 2016 Correct responses in BOLDFACE. 1. Galaxy collisions can a. trigger high rates of star formation b. perturb the planets orbiting stars in the colliding galaxies c. drag most of the interstellar gas out

More information

25.2 Stellar Evolution. By studying stars of different ages, astronomers have been able to piece together the evolution of a star.

25.2 Stellar Evolution. By studying stars of different ages, astronomers have been able to piece together the evolution of a star. 25.2 Stellar Evolution By studying stars of different ages, astronomers have been able to piece together the evolution of a star. Star Birth The birthplaces of stars are dark, cool interstellar clouds,

More information

Galaxies and Stars. 3. Base your answer to the following question on The reaction below represents an energy-producing process.

Galaxies and Stars. 3. Base your answer to the following question on The reaction below represents an energy-producing process. Galaxies and Stars 1. To an observer on Earth, the Sun appears brighter than the star Rigel because the Sun is A) hotter than Rigel B) more luminous than Rigel C) closer than Rigel D) larger than Rigel

More information

2) On a Hertzsprung-Russell diagram, where would you find red giant stars? A) upper right B) lower right C) upper left D) lower left

2) On a Hertzsprung-Russell diagram, where would you find red giant stars? A) upper right B) lower right C) upper left D) lower left Multiple choice test questions 2, Winter Semester 2015. Based on parts covered after mid term. Essentially on Ch. 12-2.3,13.1-3,14,16.1-2,17,18.1-2,4,19.5. You may use a calculator and the useful formulae

More information

Astronomy 102: Stars and Galaxies Examination 3 April 11, 2003

Astronomy 102: Stars and Galaxies Examination 3 April 11, 2003 Name: Seat Number: Astronomy 102: Stars and Galaxies Examination 3 April 11, 2003 Do not open the test until instructed to begin. Instructions: Write your answers in the space provided. If you need additional

More information

TEACHER BACKGROUND INFORMATION

TEACHER BACKGROUND INFORMATION TEACHER BACKGROUND INFORMATION (The Universe) A. THE UNIVERSE: The universe encompasses all matter in existence. According to the Big Bang Theory, the universe was formed 10-20 billion years ago from a

More information

Introduction to the Universe. What makes up the Universe?

Introduction to the Universe. What makes up the Universe? Introduction to the Universe What makes up the Universe? Objects in the Universe Astrophysics is the science that tries to make sense of the universe by - describing the Universe (Astronomy) - understanding

More information

Read each slide then use the red or some underlined words to complete the organizer.

Read each slide then use the red or some underlined words to complete the organizer. Read each slide then use the red or some underlined words to complete the organizer. 1B Did it start as a bang! 1B The Expanding Universe A. The Big Bang Theory: Idea that all matter began in an infinitely

More information

Chapter 28 Stars and Their Characteristics

Chapter 28 Stars and Their Characteristics Chapter 28 Stars and Their Characteristics Origin of the Universe Big Bang Theory about 10-20 bya all matter in the universe existed in a hot dense state about the size of an atom (tiny). That matter sort

More information

M31 - Andromeda Galaxy M110 M32

M31 - Andromeda Galaxy M110 M32 UNIT 4 - Galaxies XIV. The Milky Way galaxy - a huge collection of millions or billions of stars, gas, and dust, isolated in space and held together by its own gravity M110 M31 - Andromeda Galaxy A. Structure

More information

Introduction to the Universe

Introduction to the Universe What makes up the Universe? Introduction to the Universe Book page 642-644 Objects in the Universe Astrophysics is the science that tries to make sense of the universe by - describing the Universe (Astronomy)

More information

A star is a massive sphere of gases with a core like a thermonuclear reactor. They are the most common celestial bodies in the universe are stars.

A star is a massive sphere of gases with a core like a thermonuclear reactor. They are the most common celestial bodies in the universe are stars. A star is a massive sphere of gases with a core like a thermonuclear reactor. They are the most common celestial bodies in the universe are stars. They radiate energy (electromagnetic radiation) from a

More information

Universe Now. 12. Revision and highlights

Universe Now. 12. Revision and highlights Universe Now 12. Revision and highlights Practical issues about the exam The exam is on Monday 6.5. (12.00-16.00), lecture hall B121 (Exactum). Paper will be provided. You have 4 hours to finish the exam,

More information

CHAPTER 28 STARS AND GALAXIES

CHAPTER 28 STARS AND GALAXIES CHAPTER 28 STARS AND GALAXIES 28.1 A CLOSER LOOK AT LIGHT Light is a form of electromagnetic radiation, which is energy that travels in waves. Waves of energy travel at 300,000 km/sec (speed of light Ex:

More information

Cosmic Microwave Background Radiation

Cosmic Microwave Background Radiation Base your answers to questions 1 and 2 on the passage below and on your knowledge of Earth Science. Cosmic Microwave Background Radiation In the 1920s, Edwin Hubble's discovery of a pattern in the red

More information

The Universe. What is it? What is in it? How did it form? How will it end? How do we know?

The Universe. What is it? What is in it? How did it form? How will it end? How do we know? The Universe What is it? What is in it? How did it form? How will it end? How do we know? What is your place in the Universe? What is the universe? a. The study of the universe its nature, origins, and

More information

LESSON 1. Solar System

LESSON 1. Solar System Astronomy Notes LESSON 1 Solar System 11.1 Structure of the Solar System axis of rotation period of rotation period of revolution ellipse astronomical unit What is the solar system? 11.1 Structure of the

More information

ASTRONOMY 1 FINAL EXAM 1 Name

ASTRONOMY 1 FINAL EXAM 1 Name ASTRONOMY 1 FINAL EXAM 1 Name Multiple Choice (2 pts each) 1. Sullivan Star is an F spectral class star that is part of a binary star system. It has a MS lifetime of 5 billion years. Its life will eventually

More information

Earth Science, 13e Tarbuck & Lutgens

Earth Science, 13e Tarbuck & Lutgens Earth Science, 13e Tarbuck & Lutgens Beyond Our Solar System Earth Science, 13e Chapter 24 Stanley C. Hatfield Southwestern Illinois College Properties of stars Distance Distances to the stars are very

More information

Stars and Galaxies 1

Stars and Galaxies 1 Stars and Galaxies 1 Characteristics of Stars 2 Star - body of gases that gives off great amounts of radiant energy as light and heat 3 Most stars look white but are actually different colors Antares -

More information

Stellar Astronomy Sample Questions for Exam 3

Stellar Astronomy Sample Questions for Exam 3 Stellar Astronomy Sample Questions for Exam 3 Chapter 7 1. A protostar is formed by a) the rapid expansion of gas from an exploding star. b) the gravitational collapse of a rotating interstellar cloud.

More information

Question 1. Question 2. Correct. Chapter 16 Homework. Part A

Question 1. Question 2. Correct. Chapter 16 Homework. Part A Chapter 16 Homework Due: 11:59pm on Thursday, November 17, 2016 To understand how points are awarded, read the Grading Policy for this assignment. Question 1 Following are a number of distinguishing characteristics

More information

EARTH SCIENCE UNIT 9 -NOTES ASTRONOMY

EARTH SCIENCE UNIT 9 -NOTES ASTRONOMY EARTH SCIENCE UNIT 9 -NOTES ASTRONOMY UNIT 9- ASTRONOMY 2 THE SOLAR SYSTEM I. The Solar System:. a. Celestial Body:. i. Examples:. b. MAIN COMPONENTS/MEMBERS OF THE SOLAR SYSTEM: i. 1. Planets are objects

More information

outline 1. in the beginning. The Big Bang 2. galaxies -- different types 3. stars -- life cycle 4. the solar system -- sun and planets

outline 1. in the beginning. The Big Bang 2. galaxies -- different types 3. stars -- life cycle 4. the solar system -- sun and planets Earth s Place in the Universe outline 1. in the beginning. The Big Bang 2. galaxies -- different types 3. stars -- life cycle 4. the solar system -- sun and planets the big bang the universe is expanding

More information

Coriolis Effect - the apparent curved paths of projectiles, winds, and ocean currents

Coriolis Effect - the apparent curved paths of projectiles, winds, and ocean currents Regents Earth Science Unit 5: Astronomy Models of the Universe Earliest models of the universe were based on the idea that the Sun, Moon, and planets all orbit the Earth models needed to explain how the

More information

BROCK UNIVERSITY. Test 2, March 2015 Number of pages: 9 Course: ASTR 1P02 Number of Students: 420 Date of Examination: March 5, 2015

BROCK UNIVERSITY. Test 2, March 2015 Number of pages: 9 Course: ASTR 1P02 Number of Students: 420 Date of Examination: March 5, 2015 BROCK UNIVERSITY Page 1 of 9 Test 2, March 2015 Number of pages: 9 Course: ASTR 1P02 Number of Students: 420 Date of Examination: March 5, 2015 Number of hours: 50 min Time of Examination: 18:00 18:50

More information

Chapter Introduction Lesson 1 The View from Earth Lesson 2 The Sun and Other Stars Lesson 3 Evolution of Stars Lesson 4 Galaxies and the Universe

Chapter Introduction Lesson 1 The View from Earth Lesson 2 The Sun and Other Stars Lesson 3 Evolution of Stars Lesson 4 Galaxies and the Universe Chapter Introduction Lesson 1 The View from Earth Lesson 2 The Sun and Other Stars Lesson 3 Evolution of Stars Lesson 4 Galaxies and the Universe Chapter Wrap-Up What makes up the universe and how does

More information

18. Which graph best represents the relationship between the number of sunspots and the amount of magnetic activity in the Sun?

18. Which graph best represents the relationship between the number of sunspots and the amount of magnetic activity in the Sun? 1. Which star has a surface temperature most similar to the surface temperature of Alpha Centauri? A) Polaris B) Betelgeuse C) Procyon B D) Sirius 2. Giant stars have greater luminosity than our sun mainly

More information

Exam 4 Review EXAM COVERS LECTURES 22-29

Exam 4 Review EXAM COVERS LECTURES 22-29 Exam 4 Review EXAM COVERS LECTURES 22-29 Theoretically is there a center of the universe? Is there an edge? Do we know where Earth is on this? There is no center to the Universe, What kind of light we

More information

Stars and Galaxies. Content Outline for Teaching

Stars and Galaxies. Content Outline for Teaching Section 1 Stars A. Patterns of stars - constellations 1. Ancient cultures used mythology or everyday items to name constellations 2. Modern astronomy studies 88 constellations 3. Some constellations are

More information

Earth Space Systems. Semester 1 Exam. Astronomy Vocabulary

Earth Space Systems. Semester 1 Exam. Astronomy Vocabulary Earth Space Systems Semester 1 Exam Astronomy Vocabulary Astronomical Unit- Aurora- Big Bang- Black Hole- 1AU is the average distance between the Earth and the Sun (93 million miles). This unit of measurement

More information

Astronomy 1001/1005. Final Exam. (250 points)

Astronomy 1001/1005. Final Exam. (250 points) Name: Astronomy 1001/1005 Final Exam (250 points) Instructions: Mark your answers on this test AND your bubble sheet You will NOT get your bubble sheet back One page of notes is allowed Use a #2 pencil

More information

Astronomy Unit Notes Name:

Astronomy Unit Notes Name: Astronomy Unit Notes Name: (DO NOT LOSE!) To help with the planets order 1 My = M 2 V = Venus 3 Eager = E 4 M = Mars 5 Just = J 6 Served = Saturn 7 Us = Uranus 8 N = N 1 Orbit: The path (usually elliptical)

More information

Directed Reading A. Section: The Life Cycle of Stars TYPES OF STARS THE LIFE CYCLE OF SUNLIKE STARS A TOOL FOR STUDYING STARS.

Directed Reading A. Section: The Life Cycle of Stars TYPES OF STARS THE LIFE CYCLE OF SUNLIKE STARS A TOOL FOR STUDYING STARS. Skills Worksheet Directed Reading A Section: The Life Cycle of Stars TYPES OF STARS (pp. 444 449) 1. Besides by mass, size, brightness, color, temperature, and composition, how are stars classified? a.

More information

Observing the Night Sky. Observing the Night Sky. Observing the Night Sky. Observing the Night Sky. Observing the Night Sky. Chapter 29 THE UNIVERSE

Observing the Night Sky. Observing the Night Sky. Observing the Night Sky. Observing the Night Sky. Observing the Night Sky. Chapter 29 THE UNIVERSE Hewitt/Lyons/Suchocki/Yeh Conceptual Integrated Science Constellations are groups of stars named over antiquity. A familiar constellation is Ursa Major, the Great Bear. Chapter 29 THE UNIVERSE The monthly

More information

Physics Homework Set 2 Sp 2015

Physics Homework Set 2 Sp 2015 1) A large gas cloud in the interstellar medium that contains several type O and B stars would appear to us as 1) A) a reflection nebula. B) a dark patch against a bright background. C) a dark nebula.

More information

ASTR 1P02 Test 1, February 2019 Page 1 BROCK UNIVERSITY

ASTR 1P02 Test 1, February 2019 Page 1 BROCK UNIVERSITY ASTR 1P02 Test 1, February 2019 Page 1 BROCK UNIVERSITY Test 1: February 2019 Number of pages: 10 Course: ASTR 1P02, Section 2 Number of students: 1299 Examination date: 2 February 2019 Time limit: 50

More information

CST Prep- 8 th Grade Astronomy

CST Prep- 8 th Grade Astronomy CST Prep- 8 th Grade Astronomy Chapter 15 (Part 1) 1. The theory of how the universe was created is called the 2. Which equation states that matter and energy are interchangeable? 3. All matter in the

More information

CHAPTER 29: STARS BELL RINGER:

CHAPTER 29: STARS BELL RINGER: CHAPTER 29: STARS BELL RINGER: Where does the energy of the Sun come from? Compare the size of the Sun to the size of Earth. 1 CHAPTER 29.1: THE SUN What are the properties of the Sun? What are the layers

More information

Astronomy. physics.wm.edu/~hancock/171/ A. Dayle Hancock. Small 239. Office hours: MTWR 10-11am

Astronomy.  physics.wm.edu/~hancock/171/ A. Dayle Hancock. Small 239. Office hours: MTWR 10-11am Astronomy A. Dayle Hancock adhancock@wm.edu Small 239 Office hours: MTWR 10-11am Planetology II Key characteristics Chemical elements and planet size Radioactive dating Solar system formation Solar nebula

More information

Chapter 15 2/19/2014. Lecture Outline Hubble s Galaxy Classification. Normal and Active Galaxies Hubble s Galaxy Classification

Chapter 15 2/19/2014. Lecture Outline Hubble s Galaxy Classification. Normal and Active Galaxies Hubble s Galaxy Classification Lecture Outline Chapter 15 Normal and Active Galaxies Spiral galaxies are classified according to the size of their central bulge. Chapter 15 Normal and Active Galaxies Type Sa has the largest central

More information

FCAT Review Space Science

FCAT Review Space Science FCAT Review Space Science The Law of Universal Gravitation The law of universal gravitation states that ALL matter in the universe attracts each other. Gravity is greatly impacted by both mass and distance

More information

Clicker Questions (chapters 6-18)

Clicker Questions (chapters 6-18) Clicker Questions (chapters 6-18) 1. Officially, how many planets are there in our solar system? a. 8 b. 9 c. dozens 2. The Doppler formula is v = ( λ/λ) 300,000 km/sec for light waves. A particular feature

More information

Answers. The Universe. Year 10 Science Chapter 6

Answers. The Universe. Year 10 Science Chapter 6 Answers The Universe Year 10 Science Chapter 6 p133 1 The universe is considered to be the whole of all matter, energy, planets, solar systems, galaxies, and space. Many definitions of the universe also

More information

AST-1002 Section 0459 Review for Final Exam Please do not forget about doing the evaluation!

AST-1002 Section 0459 Review for Final Exam Please do not forget about doing the evaluation! AST-1002 Section 0459 Review for Final Exam Please do not forget about doing the evaluation! Bring pencil #2 with eraser No use of calculator or any electronic device during the exam We provide the scantrons

More information

Pluto. Touring our Solar System. September 08, The Solar System.notebook. Solar System includes: Sun 8 planets Asteroids Comets Meteoroids

Pluto. Touring our Solar System. September 08, The Solar System.notebook. Solar System includes: Sun 8 planets Asteroids Comets Meteoroids Touring our Solar System Solar System includes: Sun 8 planets Asteroids Comets Meteoroids Jan 4 5:48 PM Jan 4 5:50 PM A planet's orbit lies in an inclined orbital plane Planes of seven planets lie within

More information

Astronomy 103: First Exam

Astronomy 103: First Exam Name: Astronomy 103: First Exam Stephen Lepp October 27, 2010 Each question is worth 2 points. Write your name on this exam and on the scantron. 1 Short Answer A. What is the largest of the terrestrial

More information

Lecture Outlines. Chapter 24. Astronomy Today 8th Edition Chaisson/McMillan Pearson Education, Inc.

Lecture Outlines. Chapter 24. Astronomy Today 8th Edition Chaisson/McMillan Pearson Education, Inc. Lecture Outlines Chapter 24 Astronomy Today 8th Edition Chaisson/McMillan Chapter 24 Galaxies Units of Chapter 24 24.1 Hubble s Galaxy Classification 24.2 The Distribution of Galaxies in Space 24.3 Hubble

More information

5) Which stage lasts the longest? a) viii b) I c) iv d) iii e) vi

5) Which stage lasts the longest? a) viii b) I c) iv d) iii e) vi 1) Which of the following statements about globular clusters is false? a) Globular cluster stars are very metal- poor relative to the Sun. b) Globular cluster stars are more than 12 billion years old.

More information

ASTR 1P02 Test 1, February 2017 Page 1 BROCK UNIVERSITY

ASTR 1P02 Test 1, February 2017 Page 1 BROCK UNIVERSITY ASTR 1P02 Test 1, February 2017 Page 1 BROCK UNIVERSITY Test 1: February 2017 Number of pages: 10 Course: ASTR 1P02, Section 2 Number of students: 1200 Examination date: 4 February 2017 Time limit: 50

More information

ASTRO 120 Sample Exam

ASTRO 120 Sample Exam ASTRO 120 Sample Exam 1) If a planet has a reasonably strong magnetic field, we know that a. It is made entirely of iron b. There is liquid nitrogen below the surface c. It can harbor life d. It has a

More information

Astronomy Ch. 21 Stellar Explosions. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Astronomy Ch. 21 Stellar Explosions. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Name: Period: Date: Astronomy Ch. 21 Stellar Explosions MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A surface explosion on a white dwarf, caused

More information

1. Cosmology is the study of. a. The sun is the center of the Universe. b. The Earth is the center of the Universe

1. Cosmology is the study of. a. The sun is the center of the Universe. b. The Earth is the center of the Universe Section 1: The Universe 1. Cosmology is the study of. 2. Identify the type of cosmology a. The sun is the center of the Universe b. The Earth is the center of the Universe 3. The two most abundant gases

More information

Supernovae, Neutron Stars, Pulsars, and Black Holes

Supernovae, Neutron Stars, Pulsars, and Black Holes Supernovae, Neutron Stars, Pulsars, and Black Holes Massive stars and Type II supernovae Massive stars (greater than 8 solar masses) can create core temperatures high enough to burn carbon and heavier

More information

Exam 3 Astronomy 114

Exam 3 Astronomy 114 Exam 3 Astronomy 114 Select the answer that is the most appropriate among the choices given. 1. What is the Hubble law? (A) a relation between a galaxy s mass and radius. (B) a rule that describes the

More information

The Electromagnetic Spectrum

The Electromagnetic Spectrum The Electromagnetic Spectrum Three Kinds of Spectra Sun: The Nearest Star Radius 696,000 km 109 Re Mass 2 x 10^30 kg 300,000 Me Density 1400 kg/m^3 Luminosity 3.8x10^26 Watts (board calc.) Comp. 70% H,

More information

Astronomy Final Exam Study Guide

Astronomy Final Exam Study Guide Astronomy Final Exam Study Guide 1. Daily motion is diurnal. Yearly motion is annual. 2. The Celestial equator lies directly above the Earth s equator. The Celestial North Pole lies directly above the

More information

Edwin Hubble Discovered galaxies other than the milky way. Galaxy:

Edwin Hubble Discovered galaxies other than the milky way. Galaxy: Edwin Hubble Discovered galaxies other than the milky way. Galaxy: A collection of stars, planets, gas, and dust that are held together by gravity. Our sun and planets are in the Milky Way He noticed that

More information

Chapter 19 Galaxies. Hubble Ultra Deep Field: Each dot is a galaxy of stars. More distant, further into the past. halo

Chapter 19 Galaxies. Hubble Ultra Deep Field: Each dot is a galaxy of stars. More distant, further into the past. halo Chapter 19 Galaxies Hubble Ultra Deep Field: Each dot is a galaxy of stars. More distant, further into the past halo disk bulge Barred Spiral Galaxy: Has a bar of stars across the bulge Spiral Galaxy 1

More information

Astronomy Part 1 Regents Questions

Astronomy Part 1 Regents Questions Regents Questions 1. The Sun revolves around the center of A) Polaris B) Aldebaran C) Earth D) the Milky Way Galaxy 4. In which sequence are the items listed from least total mass to greatest total mass?

More information

Accretion Disks. Review: Stellar Remnats. Lecture 12: Black Holes & the Milky Way A2020 Prof. Tom Megeath 2/25/10. Review: Creating Stellar Remnants

Accretion Disks. Review: Stellar Remnats. Lecture 12: Black Holes & the Milky Way A2020 Prof. Tom Megeath 2/25/10. Review: Creating Stellar Remnants Lecture 12: Black Holes & the Milky Way A2020 Prof. Tom Megeath Review: Creating Stellar Remnants Binaries may be destroyed in white dwarf supernova Binaries be converted into black holes Review: Stellar

More information

Directions: For numbers 1-30 please choose the letter that best fits the description.

Directions: For numbers 1-30 please choose the letter that best fits the description. Directions: For numbers 1-30 please choose the letter that best fits the description. 1. The main force responsible for the formation of the universe is: a. Gravity b. Frictional force c. Magnetic force

More information

Test 4 Final Review. 5/2/2018 Lecture 25

Test 4 Final Review. 5/2/2018 Lecture 25 Test 4 Final Review 5/2/2018 Lecture 25 Apparent daily motion of celestial objects is due to earth s rotation Seasons are created due to the title of the Earth relative to the Sun Phases of the moon due

More information