ASTRO 5 Midterm Exam 1 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
Hecto- - CORRECT ANSWER - 10^2
Kilo- - CORRECT ANSWER - 10^3
Mega- - CORRECT ANSWER - 10^6
Giga- - CORRECT ANSWER - 10^9
Tera- - CORRECT ANSWER - 10^12
Centi- - CORRECT ANSWER - 10^-2
Milli- - CORRECT ANSWER - 10^-3
Micro- - CORRECT ANSWER - 10^-6
Nano- - CORRECT ANSWER - 10^-9
Pico- - CORRECT ANSWER - 10^-12
Water - CORRECT ANSWER - 1 g/cm
Star - CORRECT ANSWER - Glowing ball of gas
,Planet - CORRECT ANSWER - Orbits a star, shines by reflected light
(8 planets)
A Moon - CORRECT ANSWER - Object that orbits a planet
Asteroid - CORRECT ANSWER - Small rocky object that orbits a star
Comet - CORRECT ANSWER - Small, icy, orbits a star
Solar System - CORRECT ANSWER - A star and everything that orbits it
Galaxy - CORRECT ANSWER - Great island of stars all held together by gravity orbiting
common center
Earth's Average Distance from Sun - CORRECT ANSWER - 150 million Km (1
Astronomical Unit)
Speed of light - CORRECT ANSWER - 300,000 km/s
Light Year - CORRECT ANSWER - Distance light travels in one year (not time)
Spherical Earth evidence - CORRECT ANSWER - Aristotle
1. Curved shadow Earth casts on Moon
2. More stars when sailing South
Observer based coordinates - CORRECT ANSWER - Horizon (latitude) = 0 degrees
Zenith (altitude) = 90 degrees
, Meridian = line connecting North to South
Measure sky using angles - CORRECT ANSWER - 1 degree = 60 arcminutes = 3600
arcseconds
Celestial sphere - CORRECT ANSWER - Imaginary spinning sphere surrounding Earth
Contains 88 constellations
Polaris - CORRECT ANSWER - North Star
Tail of Little Dipper
Ecliptic - CORRECT ANSWER - Sun's yearly path through the celestial sphere and across
heavens
Line where all planets lie on or near
Milky Way - CORRECT ANSWER - Band of light around celestial sphere
Horizon diagram - CORRECT ANSWER - Emphasizes what observer can see
Sky chart - CORRECT ANSWER - Overhead projection of the observer based horizon
coordinates (East and West are switched because it's mirrored)
Constellations - CORRECT ANSWER - Patterns of stars that have historical reference
Asterism - CORRECT ANSWER - Prominent dot-to-dot pattern of stars that is smaller
than a constellation
Origin of constellations - CORRECT ANSWER - Homer and Hesiod mentioned some in
700 BCE
ACTUAL Exam Questions and CORRECT
Answers
Hecto- - CORRECT ANSWER - 10^2
Kilo- - CORRECT ANSWER - 10^3
Mega- - CORRECT ANSWER - 10^6
Giga- - CORRECT ANSWER - 10^9
Tera- - CORRECT ANSWER - 10^12
Centi- - CORRECT ANSWER - 10^-2
Milli- - CORRECT ANSWER - 10^-3
Micro- - CORRECT ANSWER - 10^-6
Nano- - CORRECT ANSWER - 10^-9
Pico- - CORRECT ANSWER - 10^-12
Water - CORRECT ANSWER - 1 g/cm
Star - CORRECT ANSWER - Glowing ball of gas
,Planet - CORRECT ANSWER - Orbits a star, shines by reflected light
(8 planets)
A Moon - CORRECT ANSWER - Object that orbits a planet
Asteroid - CORRECT ANSWER - Small rocky object that orbits a star
Comet - CORRECT ANSWER - Small, icy, orbits a star
Solar System - CORRECT ANSWER - A star and everything that orbits it
Galaxy - CORRECT ANSWER - Great island of stars all held together by gravity orbiting
common center
Earth's Average Distance from Sun - CORRECT ANSWER - 150 million Km (1
Astronomical Unit)
Speed of light - CORRECT ANSWER - 300,000 km/s
Light Year - CORRECT ANSWER - Distance light travels in one year (not time)
Spherical Earth evidence - CORRECT ANSWER - Aristotle
1. Curved shadow Earth casts on Moon
2. More stars when sailing South
Observer based coordinates - CORRECT ANSWER - Horizon (latitude) = 0 degrees
Zenith (altitude) = 90 degrees
, Meridian = line connecting North to South
Measure sky using angles - CORRECT ANSWER - 1 degree = 60 arcminutes = 3600
arcseconds
Celestial sphere - CORRECT ANSWER - Imaginary spinning sphere surrounding Earth
Contains 88 constellations
Polaris - CORRECT ANSWER - North Star
Tail of Little Dipper
Ecliptic - CORRECT ANSWER - Sun's yearly path through the celestial sphere and across
heavens
Line where all planets lie on or near
Milky Way - CORRECT ANSWER - Band of light around celestial sphere
Horizon diagram - CORRECT ANSWER - Emphasizes what observer can see
Sky chart - CORRECT ANSWER - Overhead projection of the observer based horizon
coordinates (East and West are switched because it's mirrored)
Constellations - CORRECT ANSWER - Patterns of stars that have historical reference
Asterism - CORRECT ANSWER - Prominent dot-to-dot pattern of stars that is smaller
than a constellation
Origin of constellations - CORRECT ANSWER - Homer and Hesiod mentioned some in
700 BCE
