AST 1002 Test 1, Fall 2003 QQ 1 In considering the Earth's "address" in the Universe, which of the following would fall between the Local Supercluster and the Milky Way? AA S 1 (1) the Local Group (2) the Andromeda Galaxy (3) the Solar System (4) NVA (5) NVA QQ 2 Which of the following could best be described as "a relatively small chunk of rock and/or metal orbiting the Sun?" AA S 2 (1) a minor planet or asteroid (2) a comet (3) a moon or satellite (4) NVA (5) NVA QQ 3 Which of the Earth's motions is responsible for the Sun's apparent motion around the ecliptic? AA S 1 (1) revolution around the Sun (2) rotation around its axis (3) precession of its axis (4) NVA (5) NVA QQ 4 The "raisin-cake" analogy is supposed to help one to understand that AA S 1 (1) the Universe is not just expanding from our location but is expanding overall, with no one place being special (2) as one looks out into space one is looking back in time as well (3) the first chemical elements were "baked" in the intense heat of the Big Bang (4) NVA (5) NVA QQ 5 The altitude of the North Celestial Pole is equal to AA S 1 (1) the observer's latitude (2) 90 degrees minus the observer's latitude (3) the observer's longitude (4) NVA (5) NVA QQ 6 The circle that runs around the celestial sphere midway between the celestial poles is the AA S 1 (1) celestial equator (2) ecliptic (3) celestial meridian (4) NVA (5) NVA QQ 7 The Sun is farthest to the south of the celestial equator at the time of the AA S 1 (1) winter solstice (2) equinoxes (3) summer solstice (4) NVA (5) NVA QQ 8 The approximate date of the autumnal equinox is AA S 1 (1) Sept. 21 (2) Dec. 21 (3) June 21 (4) Mar. 21 (5) NVA QQ 9 The Moon's phase between full and third or last quarter is AA S 1 (1) waning gibbous (2) waxing crescent (3) waning crescent (4) waxing gibbous (5) NVA QQ 10 The first quarter Moon should rise at approximately AA S 1 (1) noon (2) sunrise (3) sunset (4) midnight (5) NVA QQ 11 The completely dark part of the Moon's shadow is called the AA S 1 (1) umbra (2) penumbra (3) path of totality (4) NVA (5) NVA QQ 12 A total solar eclipse can only occur when the Moon is AA S 1 (1) at the new phase and near a node (2) at the full phase and near a node (3) at one of the nodes regardless of phase (4) NVA (5) NVA QQ 13 Which of the following is an inferior planet? AA S 1 (1) Venus (2) Earth (3) Mars (4) NVA (5) NVA QQ 14 At which configuration is a superior planet closest to Earth in space? AA S 1 (1) opposition (2) conjunction (3) greatest elongation (4) NVA (5) NVA QQ 15 What is an inferior planet's phase when it is between greatest elongation and inferior conjunction? AA S 1 (1) waxing crescent (2) waning gibbous (3) new (4) full (5) NVA QQ 16 Heat is really a form of which kind of energy? AA S 1 (1) kinetic (energy of motion) (2) potential (stored energy) (3) radiative (4) NVA (5) NVA QQ 17 Which temperature scale do we have to use in talking about radiation? AA S 1 (1) Kelvin or Absolute (2) Celsius or Centigrade (3) Fahrenheit (4) NVA (5) NVA QQ 18 The chemical element that an atom belongs to is determined by its AA S 1 (1) atomic number (2) atomic mass/weight (3) number of energy levels (4) NVA (5) NVA QQ 19 Which phase of matter has a fixed size (volume) but not a fixed shape? AA S 1 (1) liquid (2) solid (3) gas (4) NVA (5) NVA QQ 20 The lowest energy level in an atom or molecule is the one termed the AA S 1 (1) ground level (2) ionization level (3) excitation level (4) NVA (5) NVA QQ 21 According to Newton's First Law of Motion, the natural state of motion of a body -- if no outside force is acting on it -- is AA S 1 (1) constant velocity (2) constant speed (3) constant non-zero acceleration (4) NVA (5) NVA QQ 22 If a light (low-mass) object and a heavy (high-mass) object are both acted on by the same amount of force, which one will have the larger acceleration? AA S 1 (1) the light one (2) the heavy one (3) they will have exactly the same acceleration (4) NVA (5) NVA QQ 23 Centripetal force is AA S 1 (1) the amount of force towards the center necessary to maintain an object in uniform circular motion (2) the amount of force outwards from the center caused by an object's motion in a circle (3) the attractive force we know as gravitation (4) NVA (5) NVA QQ 24 Conservation of orbital angular momentum implies that a planet will have the highest orbital speed when it is at AA S 1 (1) perihelion (2) aphelion (3) midway between perihelion and aphelion (4) NVA (5) NVA QQ 25 The critical speed needed for an object to escape the Earth's (or another body's) gravity completely is termed the AA S 1 (1) parabolic or escape velocity (2) circular or orbital velocity (3) hyperbolic or warp velocity (4) NVA (5) NVA QQ 26 Newton's generalization of Kepler's Third (Harmonic) Law is very important because it is used to estimate AA S 1 (1) the masses of astronomical bodies (2) the orbital periods of astronomical bodies (3) the semimajor axes of the orbits of astronomical bodies (4) NVA (5) NVA QQ 27 The tidal force due to the Moon at a point midway between the closest point to the Moon and the farthest point is directed towards AA S 1 (1) the center of the Earth (2) the center of the Moon (3) the direction opposite the center of the Moon (4) NVA (5) NVA QQ 28 As a result of tidal friction in the Earth-Moon system, AA S 1 (1) the Earth's rotation is slowing and the Moon's orbit is expanding (2) the Earth's rotation is speeding up and the Moon's orbit is expanding (3) the Earth's rotation is speeding up and the Moon's orbit is shrinking (4) NVA (5) NVA QQ 29 The type of electromagnetic radiation having the highest energy is AA S 1 (1) gamma rays (2) radio waves (3) violet light (4) ultraviolet radiation (5) NVA QQ 30 The color of visible light having the longest wavelength is AA S 1 (1) red (2) violet (3) blue (4) yellow (5) NVA QQ 31 The type of source having an emission-line spectrum is AA S 1 (1) a thin (low-density) gas (2) a cool, thin (low-density) gas in front of a continuous-spectrum source (3) a glowing solid, liquid, or thick (high-density) gas (4) NVA (5) NVA QQ 32 If a thermal radiation source changes its temperature from 3000 K to 6000 K, the wavelength at which its spectrum has the highest intensity AA S 1 (1) is cut in half (2) is doubled (3) doesn't change at all (4) NVA (5) NVA QQ 33 The process of giving a bound electron enough energy to completely remove it from an atom or ion is called AA S 1 (1) ionization (2) recombination (3) excitation (4) de-excitation (5) NVA QQ 34 In astrophysics, an atom of oxygen (O) that has had two of its normal electrons removed is represented by the symbols AA S 1 (1) O III (2) O II (3) O_2 (4) NVA (5) NVA QQ 35 Molecular spectra are much more complex than atomic spectra because AA S 1 (1) the molecule can rotate and vibrate, which an atom can't do (2) each atom in the molecule has a different energy-level structure, even if the atoms belong to the same element (3) a molecule has many more electrons than any single atom (4) NVA (5) NVA QQ 36 If an absorption line that has a wavelength of 500 nm in the laboratory is found to have a wavelength of 502 nm in the spectrum of a galaxy, that galaxy has a AA S 1 (1) positive radial velocity ("redshift") (2) negative radial velocity ("blueshift") (3) negative tangential velocity ("redshift") (4) NVA (5) NVA