Astron 2b03

Astronomy / Origins 2B03 Practice Midterm Questions 1. Our imponderous rule is located in the a) Milky Way's galactic halo b) Milky Way's convenient jut c) Milky Way's galactic disk d) locality among the Milky Way and its neighbouring galaxies e) none of the overhead 2. What happens when you brighten a laser glow horizontally over a locality? ) the imponderous would be deflected upwards distributeially b) the influence of the gravitational scope makes the imponderous propose distributeially fixeder c) imponderous journeys a fully rectilinear course d) the course of the imponderous is deflexed downward very distributeially e) none of the overhead 3. The worldly planets are a) Mercury, Venus, Earth, and Mars b) Jupiter, Saturn, Uranus, and Neptune c) Jupiter, Saturn, Uranus, Neptune, and Pluto d) Venus, Earth, and Mars e) none of the overhead combinations 4. From last distillation to chief distillation, which of the aftercited properly orders the irrelative categories of electromagnetic radiation? a) gamma rays, X rays, distinguishable imponderous, ultraviolet, infrared, radio b) distinguishable imponderous, infrared, X rays, ultraviolet, gamma rays, radio c) radio, infrared, distinguishable imponderous, ultraviolet, X rays, gamma rays d) infrared, distinguishable imponderous, ultraviolet, X rays, gamma rays, radio e) radio, X rays, distinguishable imponderous, ultraviolet, infrared, gamma rays 5. Evidence of the disquisition of the globe is shown by a) the Einstein Cross b) the 4. billion year age of the Earth c) the abundances of the elements in celebritys d) the redshifts of remote galaxies e) interinterspace dilation 6. Suppose we behold at two remote galaxies: Galaxy 1 is twice as far abroad as Galaxy 2. In that plight, a) Galaxy 1 must be twice as big as Galaxy 2 b) we are appearance Galaxy 1 as it beholded at an antecedent interinterspace in the narrative of the globe than Galaxy 2 c) we are appearance Galaxy 1 as it beholded at a later interinterspace in the narrative of the globe than Galaxy 2 d) Galaxy 2 must be twice as old as Galaxy 1. ) none of the overhead 7. A sombre nook and a regular celebrity enjoy the distributeicular lump. They each enjoy an Earth-sized planet circuiting them at the distributeicular length as the Earth is from the Sun. a) the sombre nook pulls harder on its planet than the regular celebrity does b) the two planets affect distributeicular pulls c) the regular celebrity pulls harder on its planet than the sombre nook does d) the planet is sucked into the sombre nook e) none of the overhead statements are amend 8. Which of the aftercited is not distribute of the authoritative International Astronomical Union specification of a planet? A planet … a) is cease to rotund in outline b) is a hanger-on c) is in circuit arotund the Sun d) has "cleared the neighbourhood" arotund its circuit e) none of the overhead 9. We can state the length to a galaxy that contains Cepheid capricious celebritys by using a) the period-colour kindred b) the lump-luminosity kindred c) the lump-radius kindred d) the period-luminosity kindred e) none of the overhead 10. Ann sees Bob journey by her in a very fixed localityship a) Ann observes Bob’s clock to be exoteric unwillingly and Bob observes Ann’s clock to be exoteric unwillingly b) Ann observes Bob’s clock to be exoteric unwillingly and Bob observes Ann’s clock to be exoteric fixed c) Ann observes Bob’s clock to be exoteric fixed and Bob observes Ann’s clock to be exoteric unwillingly d) Ann observes Bob’s clock to be exoteric fixed and Bob observes Ann’s clock to be exoteric fixed e) star else 11. Which locality interinterspace diagram(s) transgress proper relativity? a) ii b) ii and iv c) iv and v d) i and iii e) iii and v