WorksheetsUNIVERSE TEST REVIEW
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
Why can't we Earthlings see the entire shape of the Milky Way Galaxy?
a)
Because we live IN the galaxy
b)
Because we are close to the sun
c)
There are many stars in the Milky Way
2.
Why does Earth get more energy from the Sun than from all the other stars in the universe?
a)
the Sun is hotter
b)
the Sun is closer
c)
the Sun is larger
d)
the Sun is more dense
3.
The term used to describe the amount of light given off by a star
a)
luminosity
b)
absolute magnitude
c)
apparent magnitude
4.
How are stars compared on the Hertzsprung- Russell diagram?
a)
color & size
b)
luminosity & temperature
c)
color, size, luminosity, & temperature
d)
shape & texture
5.
What is the relationship between stars and nebula?
a)
nebula produce stars
b)
stars produce nebula
6.
A collection of dust and gases that form stars held together by gravity
a)
star
b)
nebula
c)
supernova
d)
red giant
7.
A sphere of matter with a density & temperature great enough to cause nuclear reactions in its core
a)
main sequence star
b)
sun
c)
red giant
d)
protostar
8.
As a star uses up its hydrogen supply, it changes from a main sequence star to a
a)
red giant or super red giant
b)
white dwarf
c)
black hole
d)
supernova
9.
A region in space so dense that nothing, not even light can escape
a)
black nebula
b)
black dwarf
c)
black hole
d)
black moon
10.
On the Electromagnetic Spectrum, what type of wave is low energy?
a)
red & long
b)
blue & short
11.
Which type of wave on the Electromagnetic Spectrum is the lowest energy wave?
a)
microwave
b)
gamma rays
c)
x-rays
d)
visible light
12.
Which type of wave on the Electromagnetic Spectrum is the highest energy wave?
a)
microwaves
b)
gamma rays
c)
x-rays
d)
visible light
13.
Where in the Milky way Galaxy is Earth located?
a)
near the sun & in the middle
b)
one light year from the middle
c)
near the outer edge on a spiral arm
d)
depends on the position of the orbit
14.
Visible light waves compared to radio waves on the Electromagnetic Spectrum are
a)
shorter wavelength & higher energy
b)
longer wavelength with less energy
15.
Traits of the Milky Way Galaxy
a)
rounded elliptical with central buldge
b)
irregular shape
c)
flattened disk with spiral arms
d)
lens like with no dust cloud
16.
Which stars are most likely to increase in brightness as they increase in temperature?
a)
main sequence & red giants
b)
super giants & white dwarfs
c)
white dwarfs & main sequence
d)
red giants & super giants
17.
According to the H-R Diagram, how is our Sun classified?
a)
giant
b)
main sequence
c)
supergiant
d)
dwarf
18.
An astronomer wants to see through a dark cloud of dust to observe a galaxy. What type of tool should she use?
a)
data from gamma rays & the Electromagnetic Spectrum
b)
Red Shift
c)
H-R Diagram
d)
telescope
19.
On the H-R diagram, medium mass stars are seen as _____ , giants are seen as _____ & ____ stars are the hottest.
a)
blue, red, yellow
b)
yellow, red, blue
c)
red, yellow, blue
20.
According to the life cycle of a star, main sequence stars will turn into Red Giants & as their hydrogen finally begins to be burned up they will be come a ____.
a)
supernova
b)
neutron star
c)
black hole
d)
white dwarf
21.
What evidence indicates that galaxies are moving away from Earth?
a)
Red Shift
b)
Blue Shift
c)
spectral line readings of elements
22.
What properties of a star can be determined by the colors of the spectrum it emits?
a)
the types of elements that make it up
b)
the amount of hydrogen inside its core
c)
where it is located on the Electromagnetic Spectrum
23.
The brightness of a star is determined by the star's
a)
shape
b)
temperature
c)
mass
d)
density of its core
24.
This galaxy has a central bulge but after the collision with another galaxy it no longer has a defined shape
a)
spiral
b)
elliptical
c)
irregular
d)
lenticular
25.
The difference between a protostar and a star is the
a)
burning of helium
b)
fusion of hydrogen into helium
c)
burning of hydrogen
d)
luminosity
100 %
