Quiz about Universe Test Review

Question 1

What is the process that allows stars to produce light and heat energy?

Accepted Answer

Nuclear fusion

Answer

Magnetic field rotation

Answer

Energy transformations

Answer

Kinetic energy from impacts

Question 2

What happens next to a small or medium sized star when it has exhausted all its fuel?

Accepted Answer

Planetary nebula

Answer

Main sequence stage

Answer

White Dwarf

Answer

Red supergiant

Question 3

What are the two most abundant elements found in stars?

Accepted Answer

Hydrogen and helium

Answer

Hydrogen and oxygen

Answer

Helium and carbon

Answer

Carbon and oxygen

Question 4

Which of the following stages is the next stage in the life cycle of our Sun?

Accepted Answer

Red Giant

Answer

Supernova

Answer

White Dwarf

Answer

Neutron Star

Question 5

What characteristics of a star determines its life cycle?

Accepted Answer

Mass

Answer

Color

Answer

Temperature

Answer

Brightness

Question 6

All stars in the universe will go through which of the following stages?

Accepted Answer

Nebula, protostar, main sequence

Answer

Nebula, white dwarf, black dwarf

Answer

Protostar, main sequence, supernova

Answer

Protostar, red supergiant, neutron star

Question 7

A ________________ is a dead star that no longer gives off light or heat.

Accepted Answer

Black Dwarf

Answer

White Dwarf

Answer

Black Hole

Answer

Neutron Star

Question 8

A ________________ is a ring-shaped nebula formed by an expanding shell of gas around an aging star.

Accepted Answer

Planetary Nebula

Answer

Neutron Star

Answer

Protostar

Answer

Red Giant

Question 9

A ________________ is an extremely dense star that results from the gravitational collapse of a high mass star after a supernova.

Accepted Answer

Neutron Star

Answer

Planetary Nebula

Answer

Black Dwarf

Answer

Red Supergiant

Question 10

A ________________ is the stage after main sequence for a high to extremely high mass star when nuclear fuel begins to run out.

Accepted Answer

Red Supergiant

Answer

White Dwarf

Answer

Black Dwarf

Answer

Red Giant

Question 11

The more massive a star is, the longer its life cycle.

Accepted Answer

False

Answer

True

Question 12

The life cycle of stars is fairly similar to the life cycle of humans. Stars are born, they age, and then eventually die.

Accepted Answer

True

Answer

False

Question 13

High mass stars burn through their nuclear fuel much more slowly than smaller mass stars do.

Accepted Answer

False

Answer

True

Question 14

The mass of a star determines the path it takes through the different life cycle stages.

Accepted Answer

True

Answer

False

Question 15

A star will spend the majority of its life cycle in the protostar stage.

Accepted Answer

False

Answer

True

Question 16

Our Sun is approximately half way through its life cycle according to astronomers.

Accepted Answer

True

Answer

False

Question 17

An average mass star will end its life cycle as either a neutron star or a black hole.

Accepted Answer

True

Answer

False

Question 18

Which of the following characteristics of stars is represented on the HR Diagram?

Accepted Answer

Temperature and brightness

Answer

Size and distance from Earth

Answer

Mass and brightness

Answer

Location and age

Question 19

Where would a red supergiant (very bright, cooler temperature) be located on the HR Diagram?

Accepted Answer

Top right

Answer

Center

Answer

Top left

Answer

Bottom right

Question 20

Why are white dwarfs located near the bottom and left of center on the HR Diagram?

Accepted Answer

They are dimmer than most stars and slightly warmer than the average temperature.

Answer

They are average size, and cooler in temperature.

Answer

They are brighter than most stars and warmer than the average temperature.

Answer

They are dimmer than many stars and slightly cooler than the average temperature.

Question 21

What stage occurs after the main sequence stage for a small to medium mass star?

Accepted Answer

Giant

Answer

Supergiant

Answer

White Dwarf

Answer

Black Dwarf

Question 22

The majority of the stars on the HR Diagram belong to which of the following groups of stars?

Accepted Answer

Main Sequence

Answer

Giants

Answer

Supergiants

Answer

White Dwarfs

Question 23

Which of the following is an accurate statement about the Sun?

Accepted Answer

The Sun is an average star in brightness and temperature.

Answer

The Sun is among the smallest of all known stars.

Answer

The Sun is among the coolest of all known stars.

Answer

The Sun is among the brightest of all known stars.

Question 24

Which of the following correctly lists the color of stars from coolest to hottest?

Accepted Answer

Red, red-orange, yellow, white, blue

Answer

Blue, white, yellow, red-orange, red

Answer

Blue, white, yellow, red, re-orange

Answer

Red, red-orange, yellow, blue, white

Question 25

Which of the following is not a category of star represented on the HR Diagram?

Accepted Answer

Supernova

Answer

White Dwarf

Answer

Giant

Answer

Supergiant

Question 26

________________ decreases as you move to the right on the H-R Diagram.

Accepted Answer

Temperature

Answer

Brightness

Question 27

________________ increases as you move toward the top of the H-R Diagram.

Accepted Answer

Brightness

Answer

Temperature

Question 28

The brightness, temperature, and color of stars can be very different even if they look very similar from Earth.

Accepted Answer

True

Answer

False

Question 29

The Hertzsprung-Russell diagram classifies stars into four major groups based on their brightness and temperature.

Accepted Answer

True

Answer

False

Question 30

The Hertzsprung-Russell diagram is a graph of the characteristics of stars and not the actual placement of those stars in the sky.

Accepted Answer

True

Answer

False

Question 31

A star near the top of the Hertzsprung-Russell diagram will be much dimmer than a star near the bottom of the diagram.

Accepted Answer

False

Answer

True

Question 32

A star near the left side of the Hertzsprung-Russell diagram will be much hotter than a star near the right side of the diagram.

Accepted Answer

True

Answer

False

Question 33

Approximately 50% of all known stars are in the main sequence stage of their life cycle.

Accepted Answer

False

Answer

True

Question 34

The color of stars, from hottest to coolest, is blue, white, yellow, red-orange, and red.

Accepted Answer

True

Answer

False

Question 35

The Sun is an example of a yellow, main sequence star that is average in both brightness and temperature.

Accepted Answer

True

Answer

False

Question 36

The Sun would be located near the top of the Hertzsprung-Russell diagram because it is average in brightness.

Accepted Answer

False

Answer

True

Question 37

Giant stars are typically brighter and hotter than the average star.

Accepted Answer

True

Answer

False

Question 38

Which type of galaxy is considered to be the most abundant in the universe?

Accepted Answer

Elliptical

Answer

Irregular

Answer

Spiral

Answer

There are equal amounts of all types of galaxies

Question 39

According to estimations by astronomers, how many light years in diameter are most galaxies in the universe?

Accepted Answer

Thousands of light years or more

Answer

Hundreds of light years

Answer

50-100 light years

Answer

1-10 light years

Question 40

What do astronomers presume is located at the center of the Milky Way galaxy?

Accepted Answer

A black hole

Answer

A giant star

Answer

A big bang

Answer

Another galaxy

Question 41

What is the name of the galaxy in which we live?

Accepted Answer

Milky Way galaxy

Answer

Andromeda galaxy

Answer

Whirlpool galaxy

Answer

Black Eye galaxy

Question 42

Galaxies are classified according to which of the following?

Accepted Answer

Shape

Answer

Color

Answer

Brightness

Answer

Size

Question 43

What is a galaxy?

Accepted Answer

Huge systems of billions of stars, gas, and dust held together with gravity

Answer

All the matter that scientists have been able to identify

Answer

A cloud of gas and dust that spawns new stars

Answer

A burning sphere of gases

Question 44

A(n) _______________ galaxy is a random, scattered type of galaxy that does not form a distinct shape or pattern.

Accepted Answer

Irregular

Answer

Elliptical

Answer

Spiral

Question 45

A(n) _______________ galaxy is the most abundant type of galaxy that has a smooth, circular or oval shape.

Accepted Answer

Elliptical

Answer

Spiral

Answer

Irregular

Question 46

It has been estimated by astronomers that there are over 200 billion galaxies in the universe.

Accepted Answer

True

Answer

False

Question 47

Galaxies contain many different characteristics, but they are ultimately grouped and classified by their number of stars.

Accepted Answer

False

Answer

True

Question 48

Our Sun is located near the center of the Milky Way galaxy.

Accepted Answer

False

Answer

True

Question 49

There are six main types of galaxies that exist in the universe.

Accepted Answer

False

Answer

True

Question 50

Astronomers use data and images from telescopes to create a visual representation of what the Milky Way looks like.

Accepted Answer

True

Answer

False

Question 51

Astronomers predict that there is nothing but empty space at the center of our galaxy.

Accepted Answer

False

Answer

True

Question 52

Irregular galaxies are the smallest type of galaxies that exist.

Accepted Answer

False

Answer

True

Question 53

Galaxies can have differences in shape, diameter, and number of stars.

Accepted Answer

True

Answer

False

Universe Test Review

72 questions

What is the process that allows stars to produce light and heat energy?

What happens next to a small or medium sized star when it has exhausted all its fuel?

Why are nebulas called “star nurseries”?

What are the two most abundant elements found in stars?

Which of the following stages is the next stage in the life cycle of our Sun?

What characteristics of a star determines its life cycle?

All stars in the universe will go through which of the following stages?

A ________________ is a dead star that no longer gives off light or heat.

A ________________ is a ring-shaped nebula formed by an expanding shell of gas around an aging star.

A ________________ is the stage after main sequence for a small to medium mass star when nuclear fuel begins to run out.

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