Quiz about Stars, Galaxies, HR Diagram

Question 1

What color of star is the hottest?

Accepted Answer

Blue

Answer

Red

Answer

Yellow

Answer

Orange

Question 2

What color of star is the coolest?

Accepted Answer

Red

Answer

Yellow

Answer

Blue

Answer

White

Question 3

What is the name of the largest stars?

Accepted Answer

Supergiants

Answer

Protostars

Answer

Red Giants

Answer

Dwarf Stars

Question 4

What is the name of the gas/dust clouds that form stars?

Accepted Answer

Nebulas

Answer

Protostars

Answer

Supernova

Answer

Neutron Star

Question 5

What is the name of the explosion at the death of a massive star?

Accepted Answer

Supernova

Answer

Supergiant

Answer

Black Hole

Answer

Nebula

Question 6

What word best describes our sun?

Accepted Answer

Average

Answer

Supergiant

Answer

Dwarf

Answer

Red Giant

Question 7

What is the name of the star in our solar system?

Accepted Answer

Sun

Answer

Venus

Answer

Jupiter

Answer

Mars

Question 8

The H-R diagram is a graph that shows the relationship between ______________ for stars.

Accepted Answer

temperature and brightness

Answer

temperature and color

Answer

brightness and color

Answer

distance and brightness

Question 9

All stars begin their life in a

Accepted Answer

Nebula

Answer

Main Sequence

Answer

Protostar

Answer

Black Dwarf

Question 10

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

Accepted Answer

gravity

Answer

nuclear fusion

Answer

hydrogen

Answer

friction

Question 11

Most stars are made of which elements?

Accepted Answer

Hydrogen and Helium

Answer

Hydrogen only

Answer

Hydrogen and Lithium

Answer

Hydrogen and Sodium

Question 12

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 13

A supergiant might explode and become a_____.

Accepted Answer

supernova

Answer

main sequence stars

Answer

white dwarf

Answer

nebula

Question 14

The professional who studies the stars is...

Accepted Answer

an astronomer.

Answer

an astronaut.

Answer

an astrologer.

Question 15

Why do stars in the night sky look so small?

Accepted Answer

stars are far away

Answer

stars are small

Answer

stars are close

Question 16

Our galaxy is called the

Accepted Answer

The Milky Way

Answer

Earth Nebula

Answer

The Hubble Galaxy

Answer

The Snickers

Question 17

What will be the next stage in our star the sun's life cycle?

Accepted Answer

red giant

Answer

supernova

Answer

white dwarf

Answer

blackhole

Question 18

A small, hot star near the end of its life is a star called a

Accepted Answer

white dwarf

Answer

red dwarf

Answer

supergiant

Answer

protostar

Question 19

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

Accepted Answer

light

Answer

gravity

Answer

galaxies

Answer

spaceships

Question 20

The distance that light travels in one year...

Accepted Answer

Light year

Answer

Quantumyear

Answer

Stellar-year

Answer

1 million kilometers

Question 21

As a whole, Giants are considered hotter than White Dwarfs.

Accepted Answer

False

Answer

True

Question 22

As a whole, Giants are considered hotter than White Dwarfs.

Accepted Answer

False

Answer

True

Question 23

As a whole, Giants are considered hotter than White Dwarfs.

Accepted Answer

False

Answer

True

Question 24

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 25

Which star is the coldest?

Accepted Answer

Red Star

Answer

Yellow Star

Answer

Orange Star

Answer

Blue Star

Question 26

Which star is the coldest?

Accepted Answer

Red Star

Answer

Yellow Star

Answer

Orange Star

Answer

Blue Star

Question 27

Which star is the coldest?

Accepted Answer

Red Star

Answer

Yellow Star

Answer

Orange Star

Answer

Blue Star

Question 28

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 29

Which category is our Sun located in?

Accepted Answer

Main Sequence

Answer

White Dwarfs

Answer

Supergiants

Answer

Giants

Question 30

The category that contains the most stars is...

Accepted Answer

Main Sequence

Answer

Supergiants

Answer

Giants

Question 31

The Milky Way galaxy is described as a disk of stars orbiting a central point on the disk. Which of these best explains why people on Earth cannot see the entire shape of the Milky Way?

Accepted Answer

Earth is a part of this galaxy

Answer

Many more stars exist outside the galaxy

Answer

The stars in the center of the galaxy are extremely small.

Answer

The center of the galaxy consists of a dense cluster of stars.

Question 32

Based on this diagram which type of stars would belong to spectral class M and have the lowest luminosity?

Accepted Answer

Main Sequence Stars

Answer

Giants

Answer

Super Giants

Answer

White Dwarfs

Question 33

Based on this diagram which type of stars would belong to spectral class G and have the highest luminosity?

Accepted Answer

Super Giants

Answer

Main Sequence Stars

Answer

Giants

Answer

White Dwarfs

Question 34

Based on this diagram which type of stars would belong to spectral class B and have the lowest luminosity?

Accepted Answer

White Dwarfs

Answer

Main Sequence Stars

Answer

Giants

Answer

Super Giants

Question 35

Barnard's Star has a temperature of 2,800, what is its spectral class?

Accepted Answer

Spectral Class M

Answer

Spectral Class O

Answer

Spectral Class A

Answer

Spectral Class G

Question 36

Zeta Eridani has a temperature of 40,000 what is its spectral class?

Accepted Answer

Spectral Class O

Answer

Spectral Class A

Answer

Spectral Class G

Answer

Spectral Class M

Question 37

Procyon B has a temperature of 6,000, what is its spectral class?

Accepted Answer

Spectral Class G

Answer

Spectral Class O

Answer

Spectral Class A

Answer

Spectral Class M

Question 38

Alcor has a temperature of 11,000, what is its spectral class?

Accepted Answer

Spectral Class A

Answer

Spectral Class O

Answer

Spectral Class G

Answer

Spectral Class M

Question 39

Which of these correctly compares the masses of different objects in the universe?

Accepted Answer

A star has less mass than a galaxy and more mass than a planet.

Answer

A moon has less mass than a star and more mass than the planet it orbits.

Answer

A planet has less mass than a galaxy and more mass than the star it orbits.

Answer

A galaxy has less mass than a moon and more mass than a planet.

Question 40

A characteristic of a nebula is that it

Accepted Answer

is a region where stars are born

Answer

is at the center of the solar system

Answer

forms halfway through a star's life cycle

Answer

has the coolest temperature in space

Question 41

Which of the following components of the universe is best described as a system of stars, gases, and dust held together by gravity.

Accepted Answer

a galaxy

Answer

a nebula

Answer

a planet

Answer

a meteor

Question 42

A Hertzsprung-Russell diagram is shown below.
Based on this diagram, which type of stars would belong to spectral class M and have the highest luminosity?

Accepted Answer

Supergiants

Answer

Main-sequence stars

Answer

Giants

Answer

White dwarfs

Question 43

What type of galaxy is this?

Accepted Answer

Spiral

Answer

Elliptical

Answer

Irregular

Answer

Irrational

Question 44

The Hertzsprung-Russell diagram is provided, which is used for classifying stars based on the relationship between their brightness and their temperature and color. Regulus belongs in which of the following classifications?

Accepted Answer

Main Sequence Stars

Answer

Super Giants

Answer

Giants

Answer

White Dwarfs

Question 45

Lightyear is used by scientist to measure what?

Accepted Answer

Distance

Answer

Time

Answer

Energy

Question 46

Red stars are the _____________.

Accepted Answer

coolest

Answer

hottest

Answer

biggest

Answer

brightest

Question 47

Which star has the lowest temperature?

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 48

Which spectral class does our star, the sun, belong to?

Accepted Answer

G

Answer

M

Answer

K

Answer

F

Question 49

The temperature scale in the HR diagram is in which unit?

Accepted Answer

Kelvins

Answer

Celsius

Answer

Farenheit

Answer

Absolute Zero

Question 50

Describe the color of the stars in the lower left portion of the HR Diagram when compared to the sun

Accepted Answer

redder

Answer

about the same color

Answer

bluer

Answer

whiter

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