Quiz about Characteristics of the Universe Review!

Question 1

At 10,000 degrees Celsius, hydrogen begins to change into helium and energy is released in a process called

Accepted Answer

nuclear fusion

Answer

supernova

Answer

pulsar

Answer

nuclear fission

Question 2

All stars begin their life in a

Accepted Answer

Nebula

Answer

Main Sequence

Answer

Protostar

Answer

Black Dwarf

Question 3

What are the final two stages of a medium mass star?

Accepted Answer

white dwarf - black dwarf

Answer

neutron star - black hole

Answer

supernova - neutron star

Answer

pulsar - neutron star

Question 4

The life cycles of stars are determined by their:

Accepted Answer

mass (size)

Answer

color

Answer

distance from Earth

Answer

luminosity

Question 5

Our sun is currently in what star stage?

Accepted Answer

Main Sequence

Answer

Protostar

Answer

Nebula

Answer

Red Giant

Question 6

______ is a force that causes dust particles to stick together in a nebula.

Accepted Answer

gravity

Answer

nuclear fusion

Answer

hydrogen

Answer

friction

Question 7

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

Accepted Answer

supernova

Answer

pulsar

Answer

red giant

Answer

black hole

Question 8

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

Accepted Answer

blackhole

Answer

neutron star

Answer

white dwarf

Answer

black dwarf

Question 9

The star that appears brightest to us on Earth is

Accepted Answer

the Sun

Answer

Sirius

Answer

Polaris

Question 10

The hottest stars are

Accepted Answer

blue

Answer

red

Answer

yellow

Answer

white

Question 11

When a massive star dies it may explode in a supernova.

Accepted Answer

True

Answer

False

Question 12

A diagram or graph that shows the relationship between luminosity and temperature in a star.

Accepted Answer

HR (Hertzsprung - Russell) Diagram

Answer

Color vs. Brightness chart

Answer

Temperature vs. Luminosity chart

Answer

Stellar life cycle chart

Question 13

Any star that is fusing hydrogen in its core and has a stable balance of outward pressure from core nuclear fusion and gravitational forces pulling inward.

Accepted Answer

Main sequence star

Answer

Red giant star

Answer

White dwarf star

Answer

Supergiant star

Question 14

A main sequence star that has stopped fusing hydrogen and begun fusing helium. It has grown in size and changed color as a result. (this is the fate of our sun)

Accepted Answer

Red giant star

Answer

Black hole

Answer

White dwarf star

Answer

Super red giant star

Question 15

A small, hot, dim star that is the leftover center of an old star

Accepted Answer

White dwarf star

Answer

Yellow dwarf star

Answer

Black dwarf star

Answer

Red dwarf star

Question 16

In the diagram given, what happens as we move to the left?

Accepted Answer

Stars get hotter

Answer

Stars Get Larger

Answer

Stars get Colder

Question 17

Compared to the rest of the stars, our sun is considered...

Accepted Answer

Medium size with medium temperature

Answer

Extremely Large and Cold

Answer

Small with a medium temperature

Question 18

Which category is our Sun located in?

Accepted Answer

Main Sequence

Answer

White Dwarfs

Answer

Supergiants

Answer

Giants

Question 19

Look at the H-R diagram. Which star is
sort of cool, dim (not too much light), and red?

Accepted Answer

Barnard's star

Answer

Betelguse

Answer

Sirius B

Answer

Procyon B

Question 20

Which star has the lowest temperature?

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 21

The HR Diagram shows a relationship of a star's surface temperature and its

Accepted Answer

absolute magnitude

Answer

color

Answer

size

Answer

apparent magnitude

Question 22

The effective temperature of a star is related to its...

Accepted Answer

color

Answer

solar system

Answer

luminosity

Answer

absolute magnitude

Question 23

Use the diagram to answer the question.Using the figure, Aldebaran, Mira, and Pollux are all _____ stars.

Accepted Answer

giant

Answer

supergiant

Answer

main-sequence

Answer

white dwarf

Question 24

Use the Hertzsprung-Russell Diagram to answer the following question.  Betelgeuse is a _____

Accepted Answer

Cool and Bright Star

Answer

Hot and Bright Star

Answer

Hot and Dim Star

Answer

Cool and Dim Star

Question 25

Use the Hertzsprung-Russell Diagram to answer the following question. Spica is a _____

Accepted Answer

Hot and Bright Star

Answer

Cool and Bright Star

Answer

Hot and Dim Star

Answer

Cool and Dim Star

Question 26

Use the Hertzsprung-Russell Diagram to answer the following question. Sirius B is a _____

Accepted Answer

Hot and Dim Star

Answer

Hot and Bright Star

Answer

Cool and Bright Star

Answer

Cool and Dim Star

Question 27

Use the Hertzsprung-Russell Diagram to answer the following question. Epsilon Eridani is a _____

Accepted Answer

Cool and Dim Star

Answer

Hot and Bright Star

Answer

Cool and Bright Star

Answer

Hot and Dim Star

Question 28

John observes three different colored stars.  What can John infer about the three stars

Accepted Answer

The three stars have different temperatures

Answer

The three stars have the same temperatures

Answer

The three stars have the same luminosity

Answer

The three stars have different luminosity

Question 29

Use the Hertzsprung-Russell Diagram to answer the following question. Main sequence stars ______

Accepted Answer

decrease in brightness while they decrease in temperature.

Answer

increase in size while they decrease in temperature.

Answer

increase in brightness while they decrease in temperature.

Answer

decrease in brightness while they increase in temperature.

Question 30

Use the Hertzsprung-Russell Diagram to answer the following question. What is Barnard's Star classified as?

Accepted Answer

Dim Main Sequence Star

Answer

Bright white dwarf star

Answer

Bright Supergiant Star

Answer

Dim white dwarf star

Question 31

Use the Hertzsprung-Russell Diagram to answer the following question. What is Canopus classified as?

Accepted Answer

Bright Supergiant Star

Answer

Dim Main Sequence Star

Answer

Bright white dwarf star

Answer

Dim white dwarf star

Question 32

In which region of the H-R Diagram would you be likely to find stars fusing hydrogen to make helium in their cores?

Accepted Answer

The orange dashed line

Answer

W

Answer

X

Answer

Y

Question 33

In which region of the H-R Diagram would you be likely to find the brightest, reddest stars?

Accepted Answer

X

Answer

W

Answer

Y

Answer

The orange dashed line

Question 34

What is the primary difference between a star of spectral class K0 in the Y region, compared to a star of spectral class K0 in the X region?

Accepted Answer

brightness

Answer

temperature

Answer

color

Answer

color index

Question 35

About 90 percent of stars on the H-R diagram are ____ stars.

Accepted Answer

main sequence

Answer

red giant

Answer

luminosity

Answer

supergiants

Question 36

Use the diagram to answer the question.Using the figure, which is a main-sequence star?

Accepted Answer

Zeta Eridani

Answer

Deneb

Answer

Mira

Answer

Sirius B

Question 37

What is this section of stars known as?

Accepted Answer

Main Sequence

Answer

Red Giants

Answer

White dwarfs

Answer

Blue/Red Supergiants

Question 38

Which stage is this?

Accepted Answer

Red Giants

Answer

Red/Blue Supergiants

Answer

Main sequence

Answer

White dwarfs

Question 39

Which stage is represented by this picture?

Accepted Answer

White Dwarfs

Answer

Red Giants

Answer

Main Sequence

Answer

Blue Giants

Question 40

Which star type is represented by this section of the H-R diagram?

Accepted Answer

Blue/Red Supergiants

Answer

Main Sequence Star

Answer

White Dwarfs

Answer

Red Dwarfs

Question 41

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

Accepted Answer

Hotter and brighter

Answer

Hotter and not as bright

Answer

Colder and brighter

Answer

Colder and not as bright

Question 42

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

Accepted Answer

Colder and brighter

Answer

Hotter and brighter

Answer

Hotter and not as bright

Answer

Colder and not as bright

Question 43

What kind of star has the longest lifespan?

Accepted Answer

A star with low mass, like a red dwarf

Answer

A very massive star, like a blue giant

Answer

An average sized star, like our Sun

Question 44

A galaxy which is either spherical (ball like) or a flattened disk is a ___ galaxy.

Accepted Answer

elliptical

Answer

humanoid

Answer

irregular

Answer

spiral

Question 45

A galaxy which has a nucleus of bright stars and two or more arms in circular formation is called a ___ galaxy.

Accepted Answer

spiral

Answer

elliptical

Answer

humanoid

Answer

irregular

Question 46

A Group of stars, and or star systems, star clusters, dust and gas held together by gravity is known as:

Accepted Answer

Galaxy

Answer

Universe

Answer

Solar System

Answer

Planet

Question 47

A galaxy that does not have a regular shape?

Accepted Answer

Irregular

Answer

Spiral

Answer

Elliptical

Answer

Quasar

Question 48

In what Galaxy is Earth located?

Accepted Answer

Milky Way

Answer

Andromeda

Answer

Sagittarius

Answer

Snickers

Question 49

How many main sequence stars is in our solar system?

Accepted Answer

1

Answer

2

Answer

8

Answer

None

Question 50

What kind of galaxy is this?

Accepted Answer

Spiral

Answer

Ring

Answer

Irregular

Answer

Elliptical

Question 51

What type of galaxy do we live in?

Accepted Answer

Spiral

Answer

Elliptical

Answer

Irregular

Answer

Coaxial

Question 52

What type of galaxy is this?

Accepted Answer

Elliptical

Answer

Spiral

Answer

Irregular

Answer

Irrational

Question 53

Place these objects in order from smallest to largest.

Accepted Answer

Planets, solar system, galaxy, universe

Answer

Planets, solar system, universe, galaxy

Answer

Solar system, planets, galaxy, universe

Answer

Galaxy, solar system, planets, universe

Question 54

Which of the following is the largest?

Accepted Answer

The Milky Way Galaxy

Answer

A red giant star

Answer

The moon

Answer

Jupiter

Question 55

Our sun is located on one of the Spiral Galaxy arms.

Accepted Answer

True

Answer

False

Question 56

which galaxy has mainly old stars present ?

Accepted Answer

Elliptical galaxies

Answer

spiral galaxies

Answer

irregular galaxies

Answer

barred spiral galaxies

Question 57

which wavelength is the shortest?

Accepted Answer

gamma ray

Answer

x-ray

Answer

invisible

Answer

radio

Question 58

Low-mass stars eventually collapse into what final star remnant?

Accepted Answer

White dwarfs

Answer

Black holes

Answer

Neutron stars

Answer

Nebulae

Question 59

Our sun is in what stage?

Accepted Answer

main sequence

Answer

planetary nebula

Answer

protostar

Answer

red giant

Question 60

What the shape of the milky way? Choose the best shape

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 61

Why do other stars appear so much smaller than the sun?

Accepted Answer

They are so far away.

Answer

They are really close.

Answer

They are tiny stars.

Question 62

When Hydrogen atoms fuse together and form atoms of Helium, which of the following happens next?

Accepted Answer

energy is released.

Answer

the nuclei die.

Answer

particles collide

Answer

particles neutralize.

Question 63

Which of the following has the longest wavelength?

Accepted Answer

microwaves

Answer

UV rays

Answer

Infrared

Answer

Gamma rays

Question 64

Which of the following has the most energy?

Accepted Answer

Blue

Answer

Red

Answer

Green

Answer

Yellow

Characteristics of the Universe Review!

71 questions

At 10,000 degrees Celsius, hydrogen begins to change into helium and energy is released in a process called

All stars begin their life in a

What are the final two stages of a medium mass star?

The life cycles of stars are determined by their:

Our sun is currently in what star stage?

______ is a force that causes dust particles to stick together in a nebula.

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

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

The star that appears brightest to us on Earth is

The hottest stars are

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