Origin of Astronomy
The ancient Greeks proposed what kind of view of the universe?
a. sun centered
b. Earth centered
c. moon centered
d. none of the above
b. Earth centered
Most of the mass in the solar system is contained in what?
a. the Sun
b. the inner planets
c. the outer planets
d. none of the above
a. the Sun
What fuel is the source of energy from the Sun?
a. lithium
b. hydrogen
c. oxygen
d. helium
b. hydrogen
Our galaxy is called the....
a. Whirlpool
b. Milky Way
c. Black Eye
d. Andromedia
b. Milky Way
One of the discoveries which led to the modern view of the solar system was that the orbits of planets are....
a. ellipses
b. parabolas
c. circles
a. ellipses
This scientist was the first to use a telescope in astronomy.
a. Sir Issac Newton
b. Galileo
c. Tycho Brahe
d. Nicolaus Copernicus
b. Galileo
Which of the following in NOT a Jovian planet?
a. Jupiter
b. Neptune
c. Pluto
d. Saturn
c. Pluto
Which color stars have the highest surface temperature?
a. red
b. orange
c. yellow
d. blue
d. blue
The name applied to large quantities of interstellar dust and gas is....
a. nebula
b. quasar
c. local group
d. puldsar
a. nebula
The first modern astronomer to propose a Sun-centered universe was....
a. Sir Issac Newton
b. Galileo
C. Tycho Brahe
d. Nicolas Copernicus
d. Nicolas Copernicus
What is the name of the day that is the time it takes for Earth to make one complete rotation with respect to a star other than our Sun?
a. zodiacal
b. equinox
c. sidereal
d. Julian
c. sidereal
The two primary motions of Earth are?
a. aphelion; perhelion
b. inertia; gravity
c. expansion; collapse
d. rotation; revolution
d. rotation; revolution
Most stars are in this stage of evolution.
a. white dwarf
b. black hole
c. red giant
d. main sequence star
d. main sequence star
The period of time required for the Moon to complete a cycle of phases is called...
a. zodiacal
b. equinoxes
c. Julian
d. synodic
d. synodic
The outer most layer of the Sun is called...
a. megasphere
b. photosphere
c. corona
d. ionosphere
c. corona
Patterns of configurations of stars named in honor of mythological characters are called....
a. constellations
b. inertias
c. retrograde
d. formations
a. constellations
Pluto is now classified as what in our solar system?
a. dwarf planet
b. terrestrial planet
c. Jovian planet
d. comet
a. dwarf planet
To determine whether a celestial body is approaching or receding from Earth, astronomers employ....
a. Einsteins equation
b. the Doppler principle
c. Stefan-Boltzman law
d. high speed radar
b. the Doppler principle
Apparent magnitude is....
a. how bright stars appear to be from Earth
b. how large stars really are
c. how bright stars truly are
d. how large stars appear to be from Earth
a. how bright stars appear to be from Earth
How do astronomers believe an irregular galaxy forms?
a. sever regular galaxies of different sixes merge
b. they are regular galaxies that are distorted by the gravity field of a large nearby galaxy
c. they form when an elliptical and spiral galaxy merge
d. they are young galaxies that have not yet developed a more regular form
b. they are regular galaxies that are distorted by the gravity field of a large nearby galaxy
The proposal that contends that Earth is in the center of our universe is called?
a. celestiocentric
b. gavitationocentric
c. heliocentric
d. geocentric
d. geocentric
The most popular theory for the origin of the moon today is....
a. the Moon and Earth coalesced from an eddy in the solar nebula, forming a binary system
b. the Moon was formed when Mars and a comparable size planet collided, and the Moon was ejected toward Earth and captured
c. the early Earth and a planet the size of Mars collided, and he ejected material coalesced to form Earths Moon
c. the early Earth and a planet the size of Mars collided, and he ejected material coalesced to form Earths Moon
A main sequence star like our star like our sun is expected to be stable for approximately....
a. 10 million years
b. 100 billion years
c. 100 million years
d. 10 billion years
d. 10 billion years
A Hertzsprung-Russel diagram (H-R Diagram) is a plot of what?
a. size vs. color
b. color vs. brightness
c. size vs. brightness
d. brightness vs. temperature
d. brightness vs. temperature
The densest stars known to exist are...
a. white dwarfs
b. red dwarfs
c. black holes
c. black holes