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WorksheetsStars, Galaxies, and Hr Diagrams
Total questions: 66
Worksheet time: 50mins
Name
Class
Date
1.
A large cloud of gas and dust in interstellar space; the predecessor to stars...
a)
Constellation
b)
Black hole
c)
Nebula
d)
Galaxy
2.
What is the graph that shows the relations between a star's surface temperature and absolute magnitude?
a)
H-R Diagram
b)
Star Cluster Map
c)
Einstein's Diagram
d)
Newton's Chart of Stars
3.
Lightyear is used by scientist to measure what?
a)
Distance
b)
Time
c)
Energy
4.
The Hertzprung Russell Diagram consists of two axis that are labelled...
a)
Luminosity and Size
b)
Luminosity and Temperature
c)
Luminosity and Age
5.
In the diagram given, what happens as we move to the left?
a)
Stars Get Larger
b)
Stars get Colder
c)
Stars get hotter
6.
Which of these stars is hottest?
a)
Red Star
b)
Yellow Star
c)
Orange Star
d)
Blue Star
7.
Which star is the coldest?
a)
Yellow Star
b)
Red Star
c)
Orange Star
d)
Blue Star
8.
What else does the H-R Diagram tell us besides the luminosity and temperature?
a)
Size, color and element make up
b)
Location and distance from Earth
c)
Constellation structures
9.
Compared to the rest of the stars, our sun is considered...
a)
Extremely Large and Cold
b)
Small with a medium temperature
c)
Medium size with medium temperature
10.
Which category is our Sun located in?
a)
White Dwarfs
b)
Supergiants
c)
Main Sequence
d)
Giants
11.
The category that contains the most stars is...
a)
Main Sequence
b)
Supergiants
c)
Giants
12.
As a whole, Giants are considered hotter than White Dwarfs.
a)
True
b)
False
13.
What star category has the largest stars?
a)
Super giants
b)
White Dwarfs
c)
Giants
d)
Main Sequence
14.
The Hertzprung Russell Diagram consists of two axis that are labelled...
a)
Luminosity and Size
b)
Luminosity and Temperature
c)
Luminosity and Age
15.
Which section of the spectrum is the ONLY one we can see?
a)
X-rays
b)
Visible Light
c)
Gamma Rays
d)
Ultraviolet Rays
16.
Which one is the correct order from hottest to coolest stars?
a)
blue, yellow,orange, red
b)
red, orange, yellow, blue
c)
blue, red, yellow, orange
d)
yellow, blue, orange, red
17.
What is the best title for this picture?
a)
Birth of a Star
b)
Birth of a Universe
c)
Life Cycle of a Low Mass Star
d)
Life Cycle of a High Mass Star
18.
Look at the H-R diagram. Which star is
sort of cool, dim (not too much light), and red?
sort of cool, dim (not too much light), and red?
a)
Betelguse
b)
Sirius B
c)
Procyon B
d)
Barnard's star
19.
What is found on the x axis of an H-R diagram?
a)
Luminosity
(or brightness)
(or brightness)
b)
Temperature
c)
Star Size
d)
Distance
20.
Which is an example of a Main Sequence star?
a)
Betelgeuse
b)
our Sun
c)
Sirius B
d)
Polaris
21.
Which star has the lowest temperature?
a)
A
b)
B
c)
C
d)
D
22.
Which of the following star remnants is the least massive?
a)
White Dwarf
b)
Neuton Star
c)
Black Hole
23.
Which of the following star remnants is the most dense?
a)
White Dwarf
b)
Neutron Star
c)
Black Hole
24.
Gravity pulls gases and dust particles in space toward one another, squeezing them into a smaller and smaller space. The temperature at the center rises high enough for nuclear fusion of hydrogen to begin.
What stage in a stars life cycle is this describing?
What stage in a stars life cycle is this describing?
a)
The birth of a star
b)
The death of a star
c)
Black Hole
d)
Stellar Nebula
25.
What determines the color of a star?
a)
It's size
b)
It's temperature
c)
It's composition
d)
They are all the same color
26.
At what stage in a stars life cycle are elements heavier than iron form?
a)
Red Giant
b)
Supernova
c)
Black Hole
d)
Main Sequence
27.
When Your Body Goes Inside A Black Hole The Stretching effect is called what
a)
spaghettification
b)
stretchification
c)
longification
d)
sausageification
28.
How Does A Black Hole Distort Light
a)
It Makes A Ring Of Light Around It's self
b)
It Curves Light at a 290 degree angle
c)
It Makes The Sky Around It All White For A mile
d)
It is unknown how black holes distort light
29.
How do we spot Black Holes
a)
By using gamma rays and x-rays to detect high energy sources
b)
By using high energy to detect gamma rays and x-rays
c)
By using radioactive waves to detect high energy sources
d)
By using massive telescopes to detect gamma rays
30.
How Does A Star Collapse
a)
The Core of the star has a greater gravity than the surface
b)
The Surface of the star has a greater gravity than the core
c)
A massive explosion occurs in the core which collapses the star
31.
Where are the most supermassive black holes
a)
In most constellations
b)
It is unkown
c)
In the center of most galaxies
d)
Right next to large stars
32.
How Big is a Solar Mass
a)
The Size of Earth
b)
The size of the Sun
c)
The Size of the star HJ - X1BY976
d)
The size of a 20,000 X 20,000 X 20,000 mile cube
33.
When Our Sun Dies It Will Make a Black Hole
a)
True
b)
False
34.
The factor most directly responsible for making a black hole invisible is its
a)
size.
b)
mass.
c)
color.
d)
surface escape velocity.
35.
When a star collapses to form a black hole, its mass
a)
increases.
b)
decreases.
c)
remains the same.
36.
If the Sun collapsed to a black hole, Earth's gravitational attraction to it would be
a)
more.
b)
less
c)
the same
37.
Planets wobble in their orbits due to
a)
the gravitational attraction to other planets.
b)
uncertainties in the inverse-square law.
c)
elliptical-orbit quirks.
d)
all of the above
38.
Why won't our sun ever become a black hole?
a)
It is too massive
b)
It is too old
c)
It is too young
d)
It is too small
39.
What stage comes directly before the "main sequence" in the life cycle of star?
a)
Cloud of Gas
b)
Red giant
c)
Protostar
d)
Shell of Gas
40.
What is responsible for bringing the particles together when a star is first born?
a)
Electrostatic Attraction
b)
Heat Energy
c)
Cosmic Radiation
d)
Gravity
41.
After a supernova of what used to be a blue star with a very large mass, what is left?
a)
white dwarf star
b)
black dwarf star
c)
black hole
d)
white hole
42.
Which of these puts the main parts of an average star's life cycle in the correct order?
a)
protostar>
main sequence>
red giant >
white dwarf
main sequence>
red giant >
white dwarf
b)
protostar>
main sequence>
white dwarf>
red giant
main sequence>
white dwarf>
red giant
c)
main sequence>
protostar>
white dwarf>
red giant
protostar>
white dwarf>
red giant
d)
protostar>
red giant >
main sequence>
white dwarf
red giant >
main sequence>
white dwarf
43.
After the main sequence, a low mass star becomes a
a)
black dwarf
b)
protostar
c)
red giant
d)
supergiant
44.
Stars can take different paths due to having different
a)
temperature
b)
mass
c)
brightness
d)
color
45.
What is this an example of?
a)
White hole
b)
nebula
c)
protostar
d)
planetary nebula
46.
How are the cores of stars able to stay lit after a planetary nova without having nuclear fusion any more?
a)
they are very dense and hot
b)
they are just the star, but smaller
c)
the light continues to earth, because of the distance
d)
there is energy that is left over and expands, which makes a new star
47.
What is the most dense type of star?
a)
brown dwarf star
b)
neutron star
c)
white dwarf star
d)
black dwarf star
48.
What temperature does nuclear fusion start?
a)
10,000,000
b)
100,000
c)
1,000,000,000
d)
∞
49.
A relatively small, dense star at the end of its life cycle, which generates little or no energy and has contracted to its densest state.
What stage in the life cycle does this describe?
What stage in the life cycle does this describe?
a)
Black Hole
b)
Nebula
c)
White Dwarf
d)
Red Giant
50.
The remains from its supernova will form a rapidly spinning, highly magnetic star called a...
a)
Neutron star
b)
Black Hole
c)
White Dwarf
d)
Supernova
51.
What stage in a stars life cycle is this?
a)
Main Sequence
b)
Planetary Nebula
c)
Supernova
d)
Neutron Star
52.
What stage of the life cycle of a star is this?
a)
Main Sequence
b)
Red Giant
c)
Black Hole
d)
Neutron star
53.
This is an image of the formation of a star, also known as a ....
a)
Main Sequence
b)
Planetary Nebula
c)
Supernova
d)
Stellar Nebula
54.
Why do all the stars appear to make one complete circle around Polaris every 24 hours?
a)
because of Earth's fixed position
b)
because of Earth's rotation
c)
because Polaris rotates around Earth
d)
because the stars rotate around Earth
55.
Why is the actual motion of stars so hard to see?
a)
Earth rotates counterclockwise
b)
The light of the stars is too bright
c)
The stars are too close to Earth
d)
The stars are very far from Earth
56.
The brightness of a star as it would be a distance of 32.6 light years from Earth
a)
light year
b)
absolute magnitude
c)
apparent magnitude
d)
parallax
57.
Brightness of a star as seen from Earth
a)
parallax
b)
apparent magnitude
c)
absolute magnitude
d)
spectrum
58.
an apparent shift in the position of an object when viewed from different locations
a)
light year
b)
absolute magnitude
c)
parallax
d)
spectrum
59.
Which property of a star is the brightness of a star at a standard distance?
a)
Apparent (magnitude) brightness
b)
Absolute (magnitude) brightness
c)
Luminosity
d)
Size of the star
60.
Star R and S both have the same luminosity of 100, if Star S is 10 ly farther from Earth which star has the highest apparent magnitude?
a)
Star R
b)
Star S
c)
Both Star S and R
61.
what is the luminosity of the sun?
a)
100
b)
1
c)
.001
d)
1,000
62.
Put the stars in order from coolest to hottest.
a)
Blue, White, Yellow, Orange, Red
b)
Red, Orange, Yellow, White, Blue
c)
Red, Orange, Yellow, Blue, White
d)
Red, Yellow, Orange, White, Blue
63.
Star Z and W both have the same luminosity of 100 lux, if Star Z is 10 ly closer to Earth which star has the highest apparent magnitude?
a)
Star W
b)
Star Z
c)
Both Star Z and W
64.
Which star has the highest absolute (magnitude) brightness?
a)
Our Sun
b)
Polaris
c)
Sirius
d)
Antares
65.
Which star has the highest apparent (magnitude) brightness because it is closer to Earth?
a)
Sirius
b)
Antares
c)
Our Sun
d)
Polaris the North Star
66.
Apparent (magnitude) brightness is affected by a star's distance from Earth.
a)
False
b)
True
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