8th Grade - Chapter 24 - 5th Edition

Who developed a system for naming stars that used Greek letters and Latin forms of the stars' constillation names?

•     Edwin Hubble
•     Johann Bayer
•     Hipparchus
•     Johan Dreyer

According to the apparent magnitude given, which of the following stars is the brightest?

•     Alpha Centauri A, +0.03
•     Deneb, +1.25
•      Lacaille 2, +7.34
•     Barnard’s Star, +9.51

Which pair of elements makes up the bulk of most stars, including our sun?

•     carbon and hydrogen
• hydrogen and helium
•     hydrogen and oxygen
•     nitrogen and carbon

Which two factors are used as the axes to plot stars on the Hertzsprung-Russell diagram?

•     color and luminosity
•     luminosity and size
•      temperature and luminosity
•     temperature and size

Planetary nebulas, white dwarfs, and neutron stars

•     all form in black holes
•     are all members of binary star systems
•     are early stages in the development of a star
•     are later stages in the life of a star

Charles Messier’s objective when cataloging and naming the nebulas was

•     to be the first astronomer to catalog nebulas
•     to discover how many nebulas were in the sky
•     to help astronomers avoid confusing a nebula with a comet
•     to place the known nebulas in order of brightness

When an astronomer first observes two stars close together in the sky, he can be sure that they

•     are a binary star pair
•     are a visual double star
•      revolve around each other
•      move through space together

Which of the following statements does not apply to most galaxies?

•     They have a supernova in the center
•     They seem to be held together by gravity
•     They are made of dust, gases, billions of stars, and more
•     They rotate around a center of mass

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which of the following properties is not characteristic of quasars?

•     They are very energetic
•     They are brighter than a galaxy
•     They are very well understood
•     They emit powerful radio signals

Which of the following do we observe in the universe?

•     cosmological red shift
•     cosmic microwave background radiation
•     dark matter
•     A and B
•     B and C

Tags

NGSS.HS-ESS1-2