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Life Cycle of a star

Total questions: 111

Worksheet time: 1hrs 19mins

Name
Class
Date
1.

All stars begin their life as a

a)

Main Sequence

b)

Nebula

c)

Protostar

d)

Black Dwarf

2.

The life cycles of stars are determined by their:

a)

mass (size)

b)

color

c)

distance from Earth

d)

how bright they are

3.
Our sun is currently in what star stage?
a)
Protostar
b)
Nebula
c)
Main Sequence
d)
Red Giant
4.
______ is a force that causes dust particles to stick together in a nebula.
a)
nuclear fusion
b)
gravity
c)
hydrogen
d)
friction
5.
A gigantic explosion that causes the death of a large star is called
a)
pulsar
b)
red giant 
c)
supernova
d)
black hole
6.

A ________ is an object so dense with so much gravity that even light cannot escape.

a)

neutron star

b)

white dwarf

c)

black hole

d)

black dwarf

7.
The core of a Red Giant collapses and becomes a ___________________.
a)
White Dwarf
b)
Blue Supergiant
c)
Red Supergiant
d)
Black Hole
8.

This is an image of the first stage in the formation of a star, also known as a ....

a)

Main Sequence

b)

Planetary Nebula

c)

Supernova

d)

Nebula

9.

The stage after the main sequence star:

a)

red giant

b)

nebula

c)

white dwarf

d)

black dwarf

10.

The super red giant ends its life as a massive explosion called

a)

supernova

b)

planetary nebula

c)

constellation

d)

black dwarf

11.

When nebula is big and hot enough is collapses on itself and ...................... is made

a)

white dwarf

b)

supernova

c)

protostar

d)

planetary nebula

12.

Our sun is in this stage of its life

a)

nebula

b)

red giant

c)

black hole

d)

main sequence star

13.

Black hole ends life of the biggest stars in the universe

a)

true

b)

false

14.

Neutron stars are very small and extremely dense

a)

true

b)

false

15.

Supernova happens after

a)

super red giant

b)

nebula

c)

protostar

d)

white dwarf

16.

Our sun will end its life as a black hole

a)

true

b)

false

17.

All stars begin their life as a white dwarf

a)

true

b)

false

18.

Our sun will end its life as a black dwarf

a)

true

b)

false

19.

How many stars are there in our solar system

a)

1

b)

1 billion

c)

1 million

d)

100

20.

Only the biggest stars in the universe can become black holes at the end of their life.

a)

true

b)

false

21.
What is the first stage of the life cycle of a star for all stars?
a)
nebula
b)
protostar
c)
main-sequence
d)
red giant
22.
This is a young star that glows as gravity brings it together
a)
Nebula
b)
Protostar
c)
Main-sequence star
d)
Red giant
23.
In this stage, a star spends most of its life. Hydrogen is fused into helium at a temperature of millions of degrees.
a)
nebula
b)
protostar
c)
main-sequence
d)
supergiant
24.
Low mass stars expand into what after using up the hydrogen in their core
a)
red giants
b)
supergiants
c)
white dwarfs
d)
protostars
25.
This is a high mass star that is expanding and using energy at a fantastic rate
a)
Red giant
b)
Supergiant
c)
White dwarf
d)
Supernova
26.
A low mass star ends its life as a 
a)
Supernova
b)
Black hole
c)
White dwarf
d)
Nebula
27.
This stage is when a high mass star explodes
a)
Supergiant
b)
Red giant
c)
Supernova
d)
Black hole
28.
This stage is made by densely packed neutrons and sometimes spins and blinks and is called a pulsar
a)
Supernova
b)
White dwarf
c)
Black hole
d)
Neutron star
29.
This is released from a red giant star when the star can't hold on to its outer layer
a)
Supernova
b)
White dwarf
c)
Black hole
d)
Planetary Nebula
30.
When a star's gravitational pull is so strong that not even light can escape, it's called a what?
a)
Black hole
b)
Supernova
c)
White dwarf
d)
Nebula
31.

All stars begin their life as a

a)

Main Sequence

b)

Nebula

c)

Protostar

d)

Black Dwarf

32.
A gigantic explosion that causes the death of a large star is called
a)
pulsar
b)
red giant 
c)
supernova
d)
black hole
33.
The core of a Red Giant collapses and becomes a ___________________.
a)
White Dwarf
b)
Blue Supergiant
c)
Red Supergiant
d)
Black Hole
34.

The stage after the main sequence star:

a)

red giant

b)

nebula

c)

white dwarf

d)

black dwarf

35.

When nebula is big and hot enough is collapses on itself and ...................... is made

a)

white dwarf

b)

supernova

c)

protostar

d)

planetary nebula

36.
In this stage, a star spends most of its life. Hydrogen is fused into helium at a temperature of millions of degrees.
a)
nebula
b)
protostar
c)
main-sequence
d)
supergiant
37.
This stage is made by densely packed neutrons and sometimes spins and blinks and is called a pulsar
a)
Supernova
b)
White dwarf
c)
Black hole
d)
Neutron star
38.
When a star's gravitational pull is so strong that not even light can escape, it's called a what?
a)
Black hole
b)
Supernova
c)
White dwarf
d)
Nebula
39.

How does a star produce elements heavier than iron (Fe)?

a)

heat

b)

supernova

c)

rapid rotation

d)

nuclear fusion

40.

A stellar nebula is made up of...

a)

clouds of gas

b)

clouds of gas and dust

c)

stars

d)

planets

41.
What is the correct order for the life cycle of our star the sun?
a)
nebula, fusion stage, red giant, black dwarf, white dwarf,
b)
nebula, fusion stage, red giant, white dwarf, black dwarf
c)
nebula, fusion stage, super red giant, black dwarf, white dwarf,
d)
nebula, fusion stage, red giant, super nova, black hole
42.
What stage fills in the blank. Nebula --> Main sequence --> red giant --> ______________ --> white dwarf --> black dwaft
a)
supergiant
b)
planetary nebula
c)
black hole
d)
supernova
43.
Which of the following is NOT a final stage of a star. 
a)
black hole
b)
black dwarf
c)
neutron star
d)
red giant
44.
All H-R diagrams show what about stars?
a)
size and mass
b)
brightness and temperature
c)
name and location
d)
fusion of elements
45.
A star is born when it begins...
a)
nuclear fusion
b)
nuclear abrasion
c)
chemical reaction
d)
nuclear fission
46.
The path a star takes during its life cycle depends solely on its _____.
a)
temperature
b)
luminosity
c)
mass
d)
location
47.
What type of stars burn Hydrogen as fuel?
a)
Main Sequence
b)
Red Giants
c)
White Dwarfs
d)
Red Supergiants
48.
We consider these stars 'dead' because they no longer are carrying out fusion in their cores.
a)
White Dwarfs
b)
Red Dwarfs
c)
Red Giants
d)
Brown Dwarfs
49.
Which star on the main sequence will stay on the main sequence the longest because it burns fuel much slower?
a)
Red Dwarfs
b)
Blue Giants
c)
White Dwarfs
d)
Red Giants
50.
A medium-mass star like our sun is expected to live for __________ years.
a)
10 Billion
b)
10 Thousand
c)
10 Million
d)
10 trillion
51.

All stars begin their life in a...

a)
Main Sequence
b)
Nebula
c)
Protostar
d)
Black Dwarf
52.

Identify the final two stages of a medium mass star.

a)
white dwarf - black dwarf
b)
neutron star - black hole
c)
supernova - neutron star
d)
pulsar - neutron star
53.

Identify the key factor that turns a protostar into a

main sequence star.

a)

Fusion of hydrogen to helium in the core

b)

A main sequence star becomes larger in size than the protostar.

c)

The gravity of a main sequence star becomes larger than the protostar.

d)

A main sequence star has planets around it, while a protostar does not.

54.

At 10,000 degrees Celsius, hydrogen begins to fuse into helium, where energy is then released.

Identify the name of this process.

a)
supernova
b)
pulsar
c)
nuclear fusion
d)
nuclear fission
55.

The life cycle of a star is determined by its...

a)
mass (size)
b)
color
c)
distance from Earth
d)
luminosity
56.

Identify the stage of evolution (life) our Sun is currently in.

a)
Protostar
b)
Nebula
c)
Main Sequence
d)
Red Giant
57.

Our Sun will blow away its outer layers leaving behind its core which we call a white dwarf. Identify what the layers of gas form once blown into space.

a)
Protostar
b)
Nebula
c)
Main Sequence
d)

Planetary nebula

58.
______ is a force that causes dust particles to stick together in a nebula.
a)
nuclear fusion
b)
gravity
c)
hydrogen
d)
friction
59.

The two most common elements in a star are identified to be ____ and ____.

a)

Hydrogen and Oyxgen

b)
Hydrogen and Lithium
c)
Hydrogen and Sodium
d)
Hydrogen and Helium
60.

A gigantic explosion that causes the death of a very large star is called...

a)
pulsar
b)
red giant 
c)
supernova
d)
black hole
61.

A ________ is an object in space so dense and with so much gravity that even light cannot escape it.

a)
neutron star
b)
white dwarf
c)
blackhole
d)
black dwarf
62.
Which of the following list the correct order of the life cycle of massive stars?
a)
Nebula --> protostar --> main sequence --> red supergiant --> supernova --> blackhole
b)
Nebula --> protostar --> main sequence --> red giant --> planetary nebula --> white dwarf --> black dwarf
c)
Nebula --> protostar --> main sequence --> supernova --> red giant --> blackhole
d)
Nebula --> protostar --> blackhole --> red supergiant --> supernova --> main sequence
63.

A red giant or red super giant is best described by which of the following.

a)

Very large star of high luminosity and low surface temperature, thought to be in a late stage of evolution when no hydrogen remains in the core to fuel nuclear fusion.

b)

Very large star of low luminosity and low surface temperature, thought to be in an early stage of evolution when a lot of hydrogen remains in the core to fuel nuclear fusion.

c)

Very small star of high luminosity and low surface temperature, thought to be in a late stage of evolution when no hydrogen remains in the core to fuel nuclear fusion.

d)

Very small star of high luminosity and high surface temperature, thought to be in a late stage of evolution when no hydrogen remains in the core to fuel nuclear fusion.

64.

All main sequence stars have which of the following in common.

a)

They all fuse hydrogen into helium in their cores.

b)

They will all become red super giants.

c)

They all have similar surface temperatures.

d)

They all have similar gravitational pull.

65.

In the video clips, baby stars are referred to as "protostars." What can you infer about the prefix "proto-?"

a)

It means "infinite" or "everlasting."


b)

It means "first" or "before."

66.
Star formation begins in the...
a)
main sequence
b)
nebula
c)
dwarfism
d)
periodic table
67.
stars are produced in the nebula
a)
true
b)
false
68.
protostar is the last stage of a stars life
a)
true
b)
false
69.
Which is an accurate description of determining a stars life span? 
a)
the less mass of the star the longer the life span
b)
stars never die
c)
all stars shine the same
d)
stars don't have a life cycle
70.
Which is true about main sequence stars?
a)
Main sequence stars are large
b)
They are average sized medium stars
c)
Main sequence stars are all dim
d)
All stars in the main sequence category are very luminous
71.

Which of the following is NOT true about main sequence stars?

a)

as temperature increases so does luminosity

b)

all medium/ average sized stars

c)

include red giants, yellow stars, blue giants

d)

has the least amount of stars

72.

Which star would have the longer life span?

a)

main sequence

b)

blue giant

73.
Smaller stars lifespan would be
a)
longer than giant stars
b)
shorter than giant stars
c)
the same length of time as giant stars
d)
changes depending on the color of star
74.
What causes the explosion of a supernova?
a)
pressure increasing because the core is shrinking
b)
no pressure in the core
c)
movement of the gases
75.
When our Sun becomes a Red Giant, it will engulf _______.
a)
just Mercury
b)
all the inner planets.
c)
the entire solar system
d)
just Mercury and Venus
76.
A black hole is an object so dense with so much gravity that even ________ cannot escape.
a)
man
b)
bacon
c)
spaceships
d)
light
77.
A ring-shaped nebula formed by an expanding shell of gas around an aging star. The leftover core eventually becomes a white dwarf.
a)
Supernova 
b)
Nebula 
c)
Planetary Nebula 
d)
Gravity 
78.
A giant cloud of gas and dust, it is made mostly of Hydrogen and Helium.
a)
Supernova 
b)
Nebula 
c)
Planetary Nebula 
d)
Gravity 
79.
A process in stars where two Hydrogen atoms combine to form Helium and release energy.
a)
Nebula 
b)
Nuclear Fusion 
c)
Supernova 
d)
Gravity 
80.
All low/medium mass stars will eventually 
a)
explode into a supernova
b)
become a black hole
c)
change into a white dwarf 
d)
become a neutron star
81.
What are the two major elements found in the universe?
a)
gold, silver
b)
hydrogen, helium 
c)
silver, copper
d)
uranium, carbon
82.
Eventually, our Sun will run out of ____ and become a ____.
a)
hydrogen, red dwarf
b)
hydrogen, red giant
c)
hydrogen, blue giant
d)
helium, white dwarf
83.
What stage do stars, no matter their size, spend most of their time?
a)
stellar nebula 
b)
main sequence
c)
red giant
d)
white dwarf
84.

With regard to a star's life cycle, all stars begin as what thing?

a)

A nebula

b)

A red giant

c)

A supernova

d)

Ashes

85.

Only high mass stars have this in their life cycle.

a)

A red giant

b)

A nebula

c)

A white dwarf

d)

A supernova

86.

How might a high mass star's life cycle end? (check all that apply)

a)

white dwarf

b)

neutron star

c)

black hole

d)

red giant

87.

Which of the following describes the sun's place in its life cycle?

a)

It is a nebula

b)

It is a white dwarf

c)

It is a red giant

d)

It is a yellow main sequence star

88.

Main sequence stars have what in common?

a)

They are primarily fusing hydrogen into helium

b)

They are red in color

c)

They are larger than most other stars

d)

They are the hottest stars

89.

What is stage A?

a)

Protostar

b)

Black Dwarf

c)

Nebula

d)

White Dwarf & Planetary Nebula

e)

Main Sequence

90.

What is stage B?

a)

Protostar

b)

Black Dwarf

c)

White Dwarf & Planetary Nebula

d)

Main Sequence

e)

Red Giant

91.

What is stage C?

a)

Protostar

b)

Nebula

c)

White Dwarf & Planetary Nebula

d)

Main Sequence

e)

Red Giant

92.

What is stage D?

a)

Protostar

b)

Nebula

c)

White Dwarf & Planetary Nebula

d)

Main Sequence

e)

Red Giant

93.

What is stage E?

a)

Black Dwarf

b)

Nebula

c)

White Dwarf & Planetary Nebula

d)

Main Sequence

e)

Red Giant

94.

What is stage F?

a)

Black Dwarf

b)

Nebula

c)

White Dwarf & Planetary Nebula

d)

Main Sequence

e)

Red Giant

95.

What is stage D?

a)

Neutron Star

b)

Supernova

c)

Red Super Giant

d)

Black Hole

e)

Main Sequence

96.

What is stage E?

a)

Neutron Star

b)

Supernova

c)

Red Super Giant

d)

Black Hole

e)

Main Sequence

97.

If G is more massive than F, what is G?

a)

Neutron Star

b)

Supernova

c)

Red Super Giant

d)

Black Hole

e)

Main Sequence

98.

If G is more massive than F, what is F?

a)

Neutron Star

b)

Supernova

c)

Red Super Giant

d)

Black Hole

e)

Main Sequence

99.

What is the center of our Solar System?

a)

Earth

b)

the moon

c)

the sun

100.

All of the objects in our Solar System orbit the sun.

a)

True

b)

False

101.

How many planets are in our Solar System?

a)

7

b)

8

c)

9

102.

The inner planets (Mercury, Venus, Earth, and Mars) are made of--

a)

rocks

b)

gas

c)

helium

103.

The outer planets (Jupiter, Saturn, Uranus, Neptune) are made of --

a)

gas

b)

rocks

c)

water

104.

What is the third planet from the Sun?

a)

Mercury

b)

Venus

c)

Earth

105.

The Sun is a....

a)

Planet

b)

Star

c)

Asteroid

d)

Dwarf Planet

106.

The Sun and the Moon are the same size...

a)

True

b)

False

107.

The moon provides Earth with light...

a)

True

b)

False

108.

The eight planets in our solar system are different in many ways. Which is one thing all planets in our solar system have in common?

a)

They all have oceans.

b)

They all orbit the sun.

c)

They are all gas planets.

d)

They are all the same size.

109.

the path an object takes as it revolves around a star, planet, or moon

a)

revolve

b)

orbit

c)

rotate

d)

space probe

110.
Which planet has been re-classified as a dwarf planet?
a)
Mars
b)
Mercury
c)
Neptune
d)
Pluto
111.
How does tides form?
a)
by the earth going around the sun
b)
the earth going around the moon
c)
the sun going around the mars
d)
the moon going around the earth

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