WorksheetsStars, Galaxies and the Universe
Total questions: 35
Worksheet time: 18mins
Name
Class
Date
1.
The color of a star depends on its
a)
temperature
b)
size
c)
magnitude
d)
shape
2.
What color are the hottest stars?
a)
yellow
b)
red
c)
blue
d)
green
3.
The H-R diagram shows the relationship of a star's surface temperature and its
a)
color
b)
size
c)
apparent magnitude
d)
absolute magnitude
4.
Which of the following shows the correct sequence of a star's life cycle?
a)
white dwarf, main sequence, red giant
b)
main sequence, red giant, white dwarf
c)
red giant, white dwarf, main sequence
d)
main sequence, white dwarf, red giant
5.
Which of the following is true?
a)
New stars form from the material of old stars.
b)
A star does not change its size or temperature during its life.
c)
The shortest stage in a star's life cycle is the main sequence.
d)
When a star dies, none of its material returns to space.
6.
All of the following are major types of galaxies EXCEPT
a)
spiral galaxy
b)
irregular galaxy
c)
elliptical galaxy
d)
triangular galaxy
7.
Where are globular clusters found?
a)
along the spiral disk of galaxies
b)
in the spherical halo of spiral galaxies and near elliptical galaxies
c)
in the center bulge of spiral galaxies
d)
in the spiral arms of spiral galaxies
8.
Where are open clusters found?
a)
along the spiral disk of galaxies
b)
in the spherical halo of spiral galaxies and near elliptical galaxies
c)
in the center bulge of spiral galaxies
d)
in the spiral arms of spiral galaxies
9.
Why do scientists study distant galaxies?
a)
to learn what galaxies are made of
b)
to learn what early galaxies looked like
c)
to learn about space travel
d)
to learn about the speed of light
10.
Which of the following is the hottest?
a)
a red giant superstar
b)
a small, white dwarf star
c)
a main sequence yellow star
d)
a main sequence blue star
11.
According to the big bang theory, the universe is about
a)
470 billion years old
b)
500 billion year old
c)
4.7 billion years old
d)
13.7 billion years old
12.
Scientists think the Milky Way probably is
a)
an irregular galaxy
b)
an elliptical galaxy
c)
a spiral galaxy
d)
a nebula
13.
Elliptical galaxies and the halos of spiral galaxies contain groups of stars called
a)
globular clusters
b)
open clusters
c)
nebulae
d)
neutron stars
14.
What are the three major types of galaxies identified by Edwin Hubble?
a)
spiral, triangular, irregular
b)
spiral, elliptical, irregular
c)
spiral, triangular elliptical
d)
triangular, elliptical, irregular
15.
What type of star has used up all of its hydrogen and is the leftover center of an older star?
a)
red giant
b)
supernova
c)
white dwarf
d)
main sequence
16.
When you look at white light through a glass prism, you see a rainbow of colors called a
a)
spectrograph
b)
spectrum
c)
parallax
d)
light-year
17.
The sun is a
a)
white dwarf
b)
main sequence star
c)
red giant
d)
red dwarf
18.
A star begins as a ball of gas and dust pulled together by
a)
black holes.
b)
electrons and protons.
c)
heavy metals.
d)
gravity.
19.
The majority of stars in our galaxy are
a)
blue stars
b)
white dwarfs
c)
main sequence stars
d)
red giants
20.
Which of the following is used to measure the distance between objects in space?
a)
parallax
b)
magnitude
c)
zenith
d)
altitude
21.
The brightness that a star would have at a distance of 32.6 light-years from Earth.
a)
spectrum
b)
parallax
c)
apparent magnitude
d)
absolute magnitude
22.
The brightness of a star as it appears to an observer on Earth.
a)
Absolute magnitude
b)
light-year
c)
spectrum
d)
apparent magnitude
23.
An apparent shift in an object's position when viewed from different locations.
a)
parallax
b)
spectrum
c)
light-year
d)
magnitude
24.
The distance that light travels in one year.
a)
parallax
b)
light-year
c)
kilometer
d)
space miles
25.
The band of color produced when white light passes through a prism.
a)
parallax
b)
supernova
c)
spectrum
d)
nebula
26.
A small, hot dim star that is the leftover center of an old star.
a)
pulsar
b)
supernova
c)
white dwarf
d)
red giant
27.
A star that expands and cools once it runs out of hydrogen in its core.
a)
quasar
b)
nebula
c)
supernova
d)
red giant
28.
A gigantic explosion that causes the death of a massive star.
a)
pulsar
b)
supernova
c)
red giant
d)
white dwarf
29.
a spinning neutron star that emits rapid pulses of radio and optical energy. (LGM)
a)
pulsar
b)
red giant
c)
supernova
d)
black hole
30.
An object so massive and dense that even light cannot escape its gravity.
a)
red giant
b)
supernova
c)
pulsar
d)
black hole
31.
A large grouping of stars, dust, and gas bound together by gravity.
a)
open cluster
b)
globular cluster
c)
galaxy
d)
quasar
32.
a group of closely grouped stars.
a)
nebula
b)
quasar
c)
galaxy
d)
open cluster
33.
A tight group of stars that looks like a ball.
a)
open cluster
b)
globular cluster
c)
galaxy
d)
nebula
34.
a very bright, star-like object that generates immense energy.
a)
quasar
b)
nebula
c)
supernova
d)
black hole
35.
A large cloud of dust and gas where new stars are formed or stars explode.
a)
supernova
b)
quasar
c)
nebula
d)
galaxy
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