Astron 2b03

uranology / Origins 2B03 Practice Midterm Questions 1. Our solar system is located in the a) whitish Ways astronomic halo b) Milky Ways central bulge c) Milky Ways galactic disk d) space between the Milky Way and its neighbouring galaxies e) no(prenominal) of the in a higher place 2. What happens when you shine a laser beam horizontally across a room? ) the light would be deflected upwards slightly b) the presence of the gravitative field makes the light move slightly unfluctuatinger c) light travels a perfectly straight path d) the path of the light is curved downward very slightly e) none of the to a higher place 3. The terrestrial planets are a) Mercury, Venus, Earth, and vitiate b) Jupiter, Saturn, Uranus, and Neptune c) Jupiter, Saturn, Uranus, Neptune, and Pluto d) Venus, Earth, and Mars e) none of the above combinations 4.From lowest energy to highest energy, which of the interest correctly orders the different categories of electromagnetic radiation? a) gamma rays, X rays, manifest light, ultraviolet, infrared, radio b) unmistakable light, infrared, X rays, ultraviolet, gamma rays, radio c) radio, infrared, visible light, ultraviolet, X rays, gamma rays d) infrared, visible light, ultraviolet, X rays, gamma rays, radio e) radio, X rays, visible light, ultraviolet, infrared, gamma rays 5. Evidence of the expansion of the universe is shown by a) the Einstein baby b) the 4. billion year age of the Earth c) the abundances of the elements in stars d) the redshifts of distant galaxies e) duration dilation 6. Suppose we look at two distant galaxies extragalactic nebula 1 is twice as far away as galaxy 2. In that case, a) extragalactic nebula 1 must be twice as big as Galaxy 2 b) we are seeing Galaxy 1 as it looked at an earlier time in the account of the universe than Galaxy 2 c) we are seeing Galaxy 1 as it looked at a later time in the biography of the universe than Galaxy 2 d) Galaxy 2 must be twice as old as Galaxy 1. ) none of the above 7. A black hole and a formula star buzz off the same mass. They each have an Earth-sized planet orbiting them at the same aloofness as the Earth is from the Sun. a) the black hole pulls harder on its planet than the normal star does b) the two planets feel identical pulls c) the normal star pulls harder on its planet than the black hole does d) the planet is sucked into the black hole e) none of the above statements are correct 8.Which of the following is not part of the authorized International Astronomical Union definition of a planet? A planet a) is close to round in shape b) is a satellite c) is in orbit most the Sun d) has cleared the neighbourhood around its orbit e) none of the above 9. We can determine the distance to a galaxy that contains Cepheid variable stars by using a) the period-colour singing b) the mass-luminosity relation c) the mass-radius relation d) the period-luminosity relation e) none of the above 10.Ann sees chase after travel by her in a very fast spaceship a) Ann observes Bobs time to be track slowly and Bob observes Anns time to be running slowly b) Ann observes Bobs clock to be running slowly and Bob observes Anns clock to be running fast c) Ann observes Bobs clock to be running fast and Bob observes Anns clock to be running slowly d) Ann observes Bobs clock to be running fast and Bob observes Anns clock to be running fast e) something else 11. Which space time diagram(s) violate supererogatory relativity? a) ii b) ii and iv c) iv and v d) i and iii e) iii and v