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Stars Unit Review

Total questions: 30

Worksheet time: 18mins

Name
Class
Date
1.

Stars are born inside of...

a)

Nebulas

b)

Supernovas

c)

Black Holes

d)

Singularities

2.

In Nuclear Fusion....

a)

Hydrogen is converted into Helium

b)

Protons are converted into Electrons

c)

Gas is converted into Dust

d)

White Dwarves are converted into Red Giants

3.

The Sun is a...

a)

Main Sequence Star

b)

Protostar

c)

Red Giant

d)

White Dwarf

4.
The life cycles of stars are determined by their:
a)
mass (size)
b)
color
c)
distance from Earth
d)
luminosity
5.
Which of the following list the correct order of the life cycle of massive stars?
a)

Nebula --> main sequence --> red supergiant --> supernova --> blackhole

b)

Nebula --> main sequence --> red giant --> planetary nebula --> white dwarf --> black dwarf

c)

Nebula --> main sequence --> supernova --> red giant --> blackhole

d)

Nebula --> blackhole --> red supergiant --> supernova --> main sequence

6.

Our Sun is an average size main sequence star. What will be the next phase of its life cycle?

a)

white dwarf

b)

supernova

c)

red giant

d)

nebula

7.

Which type of stars fuse heavy elements beyond Oxygen?

a)

protostars

b)

main sequence stars

c)

red supergiants

8.

What is the Sun's final stage?

a)

black hole

b)

white dwarf

c)

red giant

d)

blue super gian

9.
The core of a Red Giant collapses and becomes a ___________________.
a)
White Dwarf
b)
Blue Supergiant
c)
Red Supergiant
d)
Black Hole
10.

The stage after the main sequence star:

a)

red giant

b)

nebula

c)

white dwarf

d)

black dwarf

11.

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

a)

supernova

b)

planetary nebula

c)

constellation

d)

black dwarf

12.

After a supernova, the core can collapse into a neutron star, or if massive enough it can become a:

a)

Black Hole

b)

White Dwarf

c)

Red Supergiant

d)

Black Dwarf

13.

When a Red Giant's outer atmosphere drifts away it is now known as:

a)

planetary cloud

b)

White dwarf cloud

c)

planetary nebula

d)

expanding nebula

14.

One possible outcome that is left after a supernova is a super dense core called a:

a)

Neutron Star

b)

White Dwarf

c)

Red Giant

d)

Black Dwarf

15.

All young stars are part of the main sequence on the HR Diagram. The rest of their life is dependent on mass.

a)

True

b)

Flase

16.
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
17.
How do stars generate energy?
a)
Fusion of hydrogen and helium atoms
b)
Fission of hydrogen and helium atoms
c)
Burning hydrogen
d)
Burning helium
18.
Nebulae are considered "Stellar Nurseries" because...
a)
Planets are created from the gases
b)
Stars form from them
c)
Asteroids are formed from them
19.
The Hertzprung Russell Diagram consists of two axis that are labelled...
a)
Luminosity and Size
b)
Luminosity and Temperature
c)
Luminosity and Age
20.
In the diagram given, what happens as we move to the left?
a)

Stars Get Larger

b)

Stars get Colder

c)

Stars get hotter

21.
Which of these stars is hottest?
a)
Red Star
b)
Yellow Star
c)
Orange Star
d)
Blue Star
22.
Which star is the coldest?
a)

Yellow Star

b)

Red Star

c)

Orange Star

d)

Blue Star

23.
What else does the H-R Diagram tell us besides the luminosity and temperature?
a)
Color and size
b)
Location and distance from Earth
c)
Constellation structures
24.
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
25.
Which star is the coldest?
a)

Yellow Star

b)

Red Star

c)

Orange Star

d)

Blue Star

26.

Which star has the lowest temperature?

HInt: Look at all 4 sides of the graph.

a)

A

b)

B

c)

C

d)

D

27.

As you move from the bottom to the top of the H-R diagram the __________ changes.

a)

Temperature

b)

Luminosity or Brightness

28.
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 
29.

In the main sequence of stars, what happens to the stars mass as you move up and to the left?

a)

size increases

b)

size decreases

c)

size remains the same

30.

What is the approximate temperature of our sun?

a)

6000 degrees

b)

3000 degrees

c)

20,000 degrees

d)

30,000 degrees

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