PHYS 202 EXAM 1 | COMPLETE STUDY GUIDE & PRACTICE QUESTIONS

PHYS 202 EXAM 1 | COMPLETE STUDY
GUIDE & PRACTICE QUESTIONS
| GRADED A+ | GUARANTEED SUCCESS


Updated 2026 Questions and Answers

100% Verified Exam Prep and Comprehensive
Rationales Included

,A galaxy is


a collection of billions of star systems held together by
gravity


Name of our home galaxy?


Milky Way Galaxy


Galactic groups


contain a few dozen galaxies, while galactic clusters
contain hundreds of galaxies

,The Milky Way Galaxy is a member of a


Galactic Group


Name of our Galactic Group?


Local Galactic Group (Local Group)


What are the three major galaxies in the Local Group?


Milky Way Galaxy, the Andromeda Galaxy, and the
Triangulum Galaxy


Galactic superclusters are


enormous organizations of hundreds of thousands of
galaxies


Name of our Galactic Supercluster?


Laniakea Galactic Supercluster

, How many galaxies in our universe?


100 Billion




How many star systems in our universe?


10 Sextillion


What is our cosmic address?


Earth, the Solar System, the Milky Way Galaxy, the Local
Galactic Group, the Laniakea Galactic Supercluster, and
then the observable universe