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Properties of Stars

Total questions: 40

Worksheet time: 24mins

Name
Class
Date
1.
Felix examined several photos of stars. To compare their temperatures, he looked at the colors of the stars. He organized the photos in order from coolest to hottest. Which of these answers shows the correct order? 
a)
red, yellow, white, blue
b)
blue, yellow, white, red
c)
yellow, white, blue, red
d)
white, blue, yellow, red
2.
The teacher gave Carly a list of four stars of different colors. Carly used the graph shown above to help compare the stars’ luminosity. 
Which star is going to have the highest temperature? 
a)
Yellow
b)
White
c)
Red
d)
Blue
3.
Based on the HR diagram above, how would we describe our sun? 
a)
Blue/ 30,000K
b)
Red/ 3,500K
c)
White/ 20,000K
d)
Yellow/ 6,000K
4.

What two characteristics are most important in classifying a star?

a)

Absolute Brightness and size

b)

Apparent magnitude and temperature

c)

Absolute magnitude and distance from the sun

d)

Temperature and rotation

5.

Which answer choice below accurately compares two different stars?

a)

White dwarfs are hotter and brighter than red giants

b)

Blue supergiants are brighter and cooler than red giants.

c)

Red Supergiants are cooler and brighter than white dwarfs.

d)

Red Supergiants are cooler and brighter than white dwarfs.

6.

What number on the diagram represents the convection zone in a star?

a)

9

b)

4

c)

3

d)

2

7.
The middle of the Sun is called the
a)
Corona
b)
Photosphere
c)
Core
d)
Convection Zone
8.

What is this

a)

Prominence

b)

Sunspot

c)

Core

d)

Solar Flare

9.
What happens during nuclear fusion
a)
Hydrogen reacts with Oxygen to create fire.
b)
Hydrogen atoms are forced together to create Helium
c)
Uranium and Plutonium split apart and release radiation.
d)
Helium atoms break down to make hydrogen
10.
Blue stars are the _____________.
a)
hottest
b)
coolest
c)
smallest
11.
Which star has the lowest temperature?
a)
A
b)
B
c)
C
d)
D
12.

 

The end of a super giant's life is a cataclysmic explosion called a:

 

 

 

 

 

a)

Supernova

b)

Neutron star

c)

Star nursery

d)

Planetary Nebula

13.

This process, called nuclear fusion, is the energy source of all __________.

There may be more than one answer for this questions.

a)

planets

b)

suns

c)

stars

d)

plants

14.

Destiny was looking at different stars in the night sky with her telescope and noticed that some stars were red while other stars were blue. What answer choice below best describes why a star would appear to have a different color?

 

 

 

 

 

a)

Blue stars are closer to Earth than red stars.

b)

Red stars are closer to Earth than blue stars.

c)

Blue stars are hotter than red stars.

d)

Red stars are hotter than blue stars.

15.

Apparent brightness is unlike luminosity, because luminosity:

 

a)

Depends on the distance of the star

b)

Does not depend on the temperature of the star

c)

Depends on the temperature of the star

d)

Does not depend on the distance of the star

16.

Which statement best describes stars?

 

a)

objects that form in the outer parts of the solar system

b)

celestial bodies made up of gas that give off light

 

c)

large planets that are composed mostly of gases

d)

faint dots of light that can be seen from Earth’s surface

17.

The H-R diagram classifies stars based on what factors?

a)

Temperature and luminosity

b)

Number of planets

c)

What constellation they're in

d)

Temperature and fusion

18.

Our sun is what kind of star?

a)

Blue giant

b)

Red giant

c)

Main sequence

d)

White dwarf

19.

Compared to a red giant star, a blue supergiant is...

a)

Hotter and brighter

b)

Hotter and not as bright

c)

Colder and brighter

d)

Colder and not as bright

20.

Compared to a white dwarf, a red supergiant is...

a)

Hotter and brighter

b)

Hotter and not as bright

c)

Colder and brighter

d)

Colder and not as bright

21.

Our sun is yellow. A star colder than our sun would be...

a)

Red

b)

Yellow

c)

White

d)

Blue

22.

Stars that are brighter are usually...

a)

Hotter

b)

Bigger

c)

More massive

d)

Smaller

23.

Which star has a longer life, a main sequence star or a blue giant?

a)

Main sequence star

b)

Blue giant

24.
In the diagram given, what happens as we move to the left?
a)
Stars Get Larger
b)
Stars get Colder
c)
Stars get hotter
25.
Which star is the coldest?
a)
Yellow Star
b)
Red Star
c)
Orange Star
d)
Blue Star
26.
The category that contains the most stars is...
a)
Main Sequence
b)
Supergiants
c)
Giants
27.
As a whole, Giants are considered hotter than White Dwarfs.
a)
True
b)
False
28.
Red stars are the _____________.
a)
hottest
b)
coolest
c)
biggest
d)
brightest
29.
Blue stars are the _____________.
a)
hottest
b)
coolest
c)
smallest
30.
Which star has the lowest temperature?
a)
A
b)
B
c)
C
d)
D
31.
Label part 1
a)
#1 Core
b)
#1 Radiation zone
c)
#1 Convection zone
d)
#1 Photosphere
32.
Label part 6
a)
#6 Prominences
b)
#6 Corona
c)
#6 Sunspots
d)
#6 Photosphere
33.
Label part 5
a)
#5 Chromosphere
b)
#5 Radiation zone
c)
#5 Convection zone
d)
#5 Photosphere
34.
Label Part 3
a)
#3 Chromosphere
b)
#3 Radiation zone
c)
#3 Convection zone
d)
#3 Photosphere
35.
Label Part 2
a)
#2 Core
b)
#2 Radiation zone
c)
#2 Convection zone
d)
#2 Corona
36.
Nuclear fusion is when
a)
the nuclei of two atoms join to produce lots of energy
b)
the nuclus of a large atom splits to release lots of energy
37.
What layer can be seen here?
a)
chromosphere
b)
corona
c)
photosphere
d)
core
38.
the distance light travels in one Earth year; about 9.5 trillion km
a)
galaxy
b)
universe
c)
light-year
d)
corona
39.
What is the sun mostly made up of
a)
Helium
b)
Core
c)
Carbon
d)
Hydrogen
40.
Where does nuclear fusion occur?
a)
Space
b)
Radiation Zone
c)
Photosphere
d)
The Core

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