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HR Diagram and Life Cycle of a Star

Total questions: 49

Worksheet time: 29mins

Name
Class
Date
1.
In the diagram given, what happens as we move to the left?
a)
Stars Get Larger
b)
Stars get Colder
c)
Stars get hotter
2.
Which of these stars is hottest?
a)
Red Star
b)
Yellow Star
c)
Orange Star
d)
Blue Star
3.
Which star is the coldest?
a)
Yellow Star
b)
Red Star
c)
Orange Star
d)
Blue Star
4.
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
5.
Which category is our Sun located in?
a)
White Dwarfs
b)
Supergiants
c)
Main Sequence
d)
Giants
6.
The category that contains the most stars is...
a)
Main Sequence
b)
Supergiants
c)
Giants
7.
As a whole, Giants are considered hotter than White Dwarfs.
a)
True
b)
False
8.
Red stars are the _____________.
a)
hottest
b)
coolest
c)
biggest
d)
brightest
9.
Blue stars are the _____________.
a)
hottest
b)
coolest
c)
smallest
10.
Look at the H-R diagram. Which star is
sort of cool, dim (not too much light), and red?
a)
Betelguse
b)
Sirius B
c)
Procyon B
d)
Barnard's star
11.
Which star has the lowest temperature?
a)
A
b)
B
c)
C
d)
D
12.
Which spectral class does our star, the sun, belong to?
a)
M
b)
K
c)
G
d)
F
13.
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 
14.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular 
d)
Irrational
15.
What type of galaxy has no defined pattern or shape?
a)
Spiral 
b)
Elliptical
c)
Irregular
d)
Constellation
16.

In the life cycle of a massive star, it will become a...

a)

white dwarf

b)

red supergiant

c)

black dwarf

d)

red giant

17.

What is the correct order from least to greatest?

a)

planet, solar system, universe, galaxy

b)

universe, galaxy, solar system, planet

c)

planet, solar system, galaxy, universe

d)

solar system, universe, galaxy, planet

18.

In the life cycle of an average star (the sun) what happens after the star becomes a red giant?

a)

white dwarf

b)

planetary nebula

c)

black dwarf

d)

supernova

19.

What factor determines whether a star will eventually become planetary nebula or a supernova?

a)

amount of mass

b)

amount of luminosity

c)

amount of temperature

d)

amount of oxygen

20.
What type of stars burn Hydrogen as fuel?
a)
Main Sequence
b)
Red Giants
c)
White Dwarfs
d)
Red Supergiants
21.
A white dwarf is the final stage for _________ mass stars like our Sun.
a)
small/medium
b)
large
c)
super massive
22.
Which type of stars are fusing Helium and heavier elements?
a)
Main Sequence
b)
White Dwarfs
c)
Blue Giants
d)
Red Giants
23.
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
24.
Where does a star begin and end its life?
a)
Black Hole
b)
Galaxy
c)
Nebula
d)
Solar System
25.
What spectacular event follows the red super giant phase for a large or massive star when it starts fusing iron in its core?
a)
Big Bang
b)
Supernova
c)
Planetary Nebula
26.
As the mass of a star increases, its life expectancy __________ because it burns fuel more rapidly.
a)
decreases
b)
increases
27.
A star spends most of its life in this stage.
a)
Main Sequence
b)
Red Giant
c)
White Dwarf
d)
Black Hole
28.
Large mass stars will explode in a Supernova, but will not create a Black Hole as the Neutrons will repel the gravitational collapse, leaving behind a super dense _________ star.
a)
White Dwarf
b)
Neutron
c)
Black Dwarf
d)
Black Hole
29.
A diagram or graph that shows the relationship between luminosity and temperature in a star.
a)
HR (Hertzsprung - Russell) Diagram
b)
Color vs. Brightness chart
c)
Temperature vs. Luminosity chart
d)
Stellar life cycle chart
30.
A small, hot, dim star that is the leftover center of an old star
a)
Yellow dwarf star
b)
Black dwarf star
c)
White dwarf star
d)
Red dwarf star
31.
The high-dense remains of a high mass star after a supernova. Creates an object whose gravity is so strong that nothing, not even light, can escape.
a)
Black hole
b)
Quasar
c)
Cephid
d)
Neutron star
32.
A collection of stars, dust, and gas bound together by gravity is...
a)
Universe
b)
Solar System
c)
Planet
d)
Galaxy
33.
A large cloud of gas and dust in interstellar space; the predecessor to stars...
a)
Constellation
b)
Black hole
c)
Nebula
d)
Galaxy
34.
Cell phones and televisions use this type of EM wave.  It has the longest wavelength with the lowest frequency.
a)
radio wave
b)
tv wave
c)
Gamma wave
d)
ultra violet
35.
Which portion of the electromagnetic spectrum includes the range of light that can be detected by the human eye? 
a)
ultraviolet light
b)
visible light
c)
infrared light
d)
x-rays
36.
If the wavelength of an electromagnetic wave is longer, what is true about the energy? 
a)
Energy is higher.
b)
Energy is lower. 
c)
Energy is not dependent on wavelength. 
d)
energy is cancelled out
37.
The distance between one point of a wave to the same point on the next wave.
a)
frequency
b)
wavelength
c)
amplitude
d)
crest
38.
The type of wave with the shortest wavelength and highest frequency.  This type of wave is extremely harmful.
a)
radio
b)
infrared
c)
gamma
d)
x ray
39.
Which type of visible light has the highest energy?
a)
Red
b)
Yellow
c)
Green
d)
Violet
40.
Which of the following types of electromagnetic radiation has a wavelength near 10-5?
a)
Radio
b)
Microwave
c)
Infrared
d)
Visible 
41.

As part of the Big Bang Theory of the formation of the universe, scientists believe that over time, the universe is continually changing in what characteristic?

a)

From more dense to less dense

b)

From rotating to stationary

c)

From cooler to hotter

d)

From very large to very small

42.

All the stars we observe from Earth emit light that is shifted, to varying degrees, to longer wavelengths. This evidence is used to support the Big Bang Theory because it shows that stars we observe -

a)

are all older than our Sun.

b)

are made up of helium gas.

c)

use nuclear fusion to make light.

d)

are moving away from us.

43.

The Big Bang Theory suggests that our universe formed as the result of a huge explosion that sent all existing matter flying outward from a single point. The Big Bang Theory is supported by which of these observations?

a)

All matter in the universe is composed of the same atoms.

b)

All galaxies appear to be moving away from all other galaxies.

c)

All stars in the universe are approximately the same age.

d)

The universe is relatively the same temperature in all locations.

44.

Which theory does this statement apply to?


The Universe is constantly producing new matter.

a)

Big Bang Theory

b)

Steady State Theory

c)

Oscillating

45.

Which theory does this statement apply to?


The Universe started at a single point.

a)

Big Bang Theory

b)

Steady State Theory

c)

Both Big Bang and Oscillating

d)

Oscillating

46.

What type of galaxy is the Milky Way galaxy?

a)
b)
c)
d)
47.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Irrational
48.

Which theory has the "big crunch"

a)

Big Bang Theory

b)

Steady State Theory

c)

Oscillating Theory

49.

Which of the following elements could be found in this star?

a)

Na and He

b)

He and H

c)

H and Li

d)

Lu and Na