WorksheetsStars
Total questions: 12
Worksheet time: 9mins
Name
Class
Date
1.
Astronomers divide the night sky into ____ regions based on ancient constellations.
a)
12
b)
24
c)
68
d)
88
2.
A(n) _______ is the average distance between Earth and the Sun.
a)
light-year
b)
kilometer
c)
astronomical unit
d)
parsec
3.
The photosphere is the _____ surface of a star
a)
apparent
b)
solid
4.
____ are cooler than the rest of the Sun’s photosphere.
a)
Coronal mass ejections
b)
Solar flares
c)
Sunspots
d)
Prominences
5.
A supernova is
a)
an explosion of a red supergiant
b)
a very large star
c)
the end of the life of a low mass star
d)
what Mrs. Downing called her first car--Supernova the Chevy Nova.
6.
When a protostar forms the most dense part of the ____ has collapsed.
a)
supernova
b)
protostar
c)
chevy nova
d)
nebula
7.
What happens in planetary nebulae?
a)
planets are formed
b)
aliens are born
c)
matter is cast off from the outer layers of a white dwarf
d)
a black hole forms
8.
The most massive stars become
a)
white dwarfs
b)
red dwarfs
c)
black dwarfs
d)
black holes
9.
Parallax is used to
a)
measure distances in the solar system
b)
measure the mass of stars
c)
measure the distance to nearby stars
d)
measure the distance to other earth-like planets
10.
A measure of how bright an object appears from Earth is
a)
apparent magnitude
b)
absolute magnitude
11.
The distance that light travels in 1 year is known as a
a)
astronomical unit
b)
light-year
12.
Luminosity is the
a)
true brightness of an object
b)
a light company
c)
the brightness of an object as it appears from Earth
100 %
