Navigation » List of Schools » California State University, Northridge » Astronomy » Astronomy 154 – Elementary Astronomy » Spring 2022 » Assignment 4
Below are the questions for the exam with the choices of answers:
Question #1
A semimijor axis
B parallax
C focus
D perihelion
E aphelion
F eccentricity
Question #2
A Galileo
B Copernicus
C Ptolemy
D Newton
Question #3
A perigee
B apogee
C perihelion
D parallax
E aphelion
Question #4
A take longer to rotate on their axis.
B have more elliptical orbits.
C have more mass.
D have more gravity.
E take longer to revolve around the Sun.
Question #5
A off center, but along neither axis
B off center and along the longer axis
C off center and along the shorter axis
D at the center of the ellipse
Question #6
A parallel, planets, one orbit
B ellipse, sun, one focus
C ellipse, sun, one axis
D eccentric, sun, one focus
Question #7
A is made of gases.
B undergoes retrograde motion.
C undergoes a full set of phases as seen from Earth.
D has mountains on its surface.
E has four moons orbiting it.
Question #8
A a changing distance from Earth
B a complete cycle of phases
C Venus rising in the morning
D high temperatures
E Venus appearing brighter than Jupiter
Question #9
A observing mountains on the Moon
B proving Kepler’s laws were correct
C showing that heavy objects fall slower than lighter objects
D inventing the telescope
E measuring the properties of supernovae
Question #10
A This star is farther than the moon and thus could have blown the sun away.
B This star is planet-like.
C This star is closer than the moon and thus stars are not all at the same distance.
D This star is much farther away than the moon and that the heavens are not perfect and unchanging.
E This star is closer than the moon and thus smaller than other stars.
Question #11
A the law of gravity
B elliptical orbits
C detailed and precise observations
D epicycles
E sun centered solar system
Question #12
A eccentricity
B aphelion
C parallax
D perihelion
Question #13
A Mars, Jupiter, and Saturn move around the Earth
B Earth is stationary and at the center
C uniform circular motion
D Mercury and Venus move around the Sun
E elliptical orbits
Question #14
A The motions of the Sun are not its motions, but the motions of the Earth.
B The celestial spheres do not have just one common center.
C What appears to be forward and retrograde motion of the planets is naturally due to their motion around us.
D All of the spheres revolve around the Sun.
Question #15
A Earth passes the planet while they orbit.
B the Earth moves backwards along its epicycle.
C the planets passes the Earth while they orbit.
D the planets moves backward on its orbit.
E the Earth moves backwards along its orbit.
F the planet moves backward along its epicycle.
Question #16
A aphelion
B eccentricity
C retrograde
D parallax
Question #17
A He was the first to create a model of the solar system that placed the Sun rather than the Earth at the center.
B developed the first model of the solar system that made sufficiently accurate predictions of planetary positions.
C developed the first scientific model of the universe
D He was the first to believe that the orbits of the planets are ellipses.
Question #18
A an ancient mode of thinking first invented in Egypt
B a difficult process that only a handful of people can do well
C produced by computers
D based on everyday ideas of observation and experiments
E completely different from any other type of thinking