Quiz about Stars and Galaxies - Science Test

Question 1

A "light year" - is a measurement of...

Accepted Answer

distance

Answer

time

Answer

luminosity

Answer

absolute brightness

Answer

relative brightness

Question 2

Scientists classify stars based on...

Accepted Answer

temperature and size

Answer

temperature

Answer

location

Answer

size

Answer

size and location

Question 3

Earth is located in THIS galaxy...

Accepted Answer

Milky Way

Answer

Andromeda

Answer

Betelgeuse

Answer

Snickers

Answer

Antares

Question 4

The Milky Way is THIS type of galaxy...

Accepted Answer

Spiral

Answer

Elliptical

Answer

Irregular

Answer

Unknown

Question 5

Galaxies that appear to have a bulge in the center and arms that move outward are called

Accepted Answer

Spiral Galaxies

Answer

Elliptical

Galaxies

Answer

Irregular Galaxies

Answer

Unknown Galaxies

Question 6

Our SOLAR SYSTEM (our Sun and planets) formed about this many years ago

Accepted Answer

5 billion

Answer

5 million

Answer

14 billion

Answer

15 million

Question 7

This is what we call the force that is causing the expansion of the universe to accelerate

Accepted Answer

Dark energy

Answer

Dark matter

Answer

Big Bang

Answer

Parallax

Answer

Gravity

Question 8

Parallax is used to determine a star's

Accepted Answer

distance from Earth

Answer

composition

Answer

temperature

Answer

brightness

Answer

color

Question 9

Which of the following is a major difference between elliptical galaxies and spiral galaxies?

Accepted Answer

Elliptical galaxies have almost no gas or dust between stars

Answer

Elliptical galaxies vary more in shape than spiral galaxies

Answer

Spiral galaxies have almost no gas or dust between stars

Answer

Spiral galaxies contain only old stars

Question 10

A star is born when...

Accepted Answer

Nuclear fusion begins

Answer

A nebula expands

Answer

A protostar begins to cool

Answer

Helium and oxygen combine

Question 11

The theory astronomers have developed to describe the formation of the universe is known as...

Accepted Answer

Big Bang Theory

Answer

Big Crunch Theory

Answer

Collision Ring Theory

Answer

Galactic Expansion Theory

Answer

Red Shift Theory

Question 12

Which of the following is NOT a characteristic of stars?

Accepted Answer

texture

Answer

size

Answer

temperature

Answer

chemical composition (what it is made of)

Question 13

The brightness of a star as seen from Earth is called what?

Accepted Answer

apparent brightness

Answer

parallax

Answer

light year

Answer

absolute brightness

Question 14

A dying high-mass star can suddenly explode - becoming WHAT?

Accepted Answer

super nova

Answer

nebula

Answer

protostar

Answer

black hole

Answer

quasar

Question 15

Many stars belong to larger groups called

Accepted Answer

a cluster

Answer

an eclipsing binary

Answer

a binary

Answer

black holes

Question 16

Gravity pulled most of the gas into the center of the disk, where the gas eventually became hot and dense enough for nuclear fusion to begin - and WHAT was born?

Accepted Answer

The sun (our star)

Answer

The inner planets

Answer

The outer planets

Answer

The Mily Way

Answer

Earth

Question 17

Which is the correct order of stars from COOLEST to HOTTEST?

Accepted Answer

red, orange, yellow, white, blue

Answer

blue, white, yellow, orange, red

Answer

red, yellow, blue, white, orange

Answer

red, white, yellow, orange, blue

Question 18

What characteristics are used to classify stars?

Accepted Answer

Temperature/color and brightness/luminosity

Answer

Flammability, weight, and reactivity

Answer

Conductivity, luster, and density

Answer

Malleability, distance, and viscoscity

Question 19

Which group does our star, the sun, belong to?

Accepted Answer

Main Sequence

Answer

White Dwarfs

Answer

Red Giants

Answer

Super Giants

Question 20

Stars are classified by color, temperature, size, composition, and __________________.

Accepted Answer

brightness

Answer

shape

Answer

distance

Answer

appearance

Question 21

You observe a red star, blue star, and a white star. What can you infer?

Accepted Answer

the red star is the coolest and the blue star is the hottest

Answer

the blue star is the coolest, and the red star is the hottest

Answer

the white star is the coolest and the red star is the hottest

Question 22

What do we call the system that uses powers of ten to write very large or very small numbers in a shortened format?

Accepted Answer

Scientific Notation

Answer

Scientific Method

Answer

Exponential Algorithms

Answer

Scientific Shorthand

Answer

Exponential Functions

Question 23

When they die, the most massive stars collapse to form...

Accepted Answer

a black hole

Answer

a quasar

Answer

a super nova

Answer

a spiral galaxy

Answer

a white dwarf

Question 24

When a dying high mass star suddenly explodes, it forms

Accepted Answer

a super nova

Answer

a quasar

Answer

a black hole

Answer

a spiral galaxy

Answer

a white dwarf

Question 25

Galaxies that are active young galaxies with giant black holes at the center are known as

Accepted Answer

a quasar

Answer

a super nova

Answer

a black hole

Answer

a spiral galaxy

Answer

a white dwarf

Question 26

Astronomers have discovered that we can only see very little of the mass of galaxies. The remianing mass is known as...

Accepted Answer

dark matter

Answer

super massive black holes

Answer

a supernova

Answer

dark energy

Answer

a nebula

Question 27

According to the HR Diagram, Alcor and Deneb are similar in what way?

Accepted Answer

They are both white stars

Answer

They are both red giants

Answer

They are both blue stars

Answer

They are both white dwarfs

Question 28

According to the HR Diagram, what is the name of the BRIGHTEST RED STAR?

Accepted Answer

Betelgeuse

Answer

Deneb

Answer

Alcor

Answer

Zeta Eridani

Question 29

According to the HR Diagram, what can you say about the star Zeta Eridani?

Accepted Answer

All of these are true

Answer

It is blue

Answer

It is VERY bright

Answer

It has a temperature around 35,000 degrees Kelvin

Question 30

According to the HR Diagram, which of the following is NOT a RED star?

Accepted Answer

Zeta Eridani

Answer

Betelgeuse

Answer

Barnard's Star

Answer

Mira

Answer

Antares

Question 31

According to the HR Diagram, which of the following can be said about our Sun as compared with Polaris (the North Star)?

Accepted Answer

The sun is smaller and less bright than Polaris

Answer

The sun is brighter than Polaris

Answer

They are both white dwarf stars

Answer

Our sun is a Red Giant and Polaris is a super nova

Answer

They are both hot blue stars

Question 32

This word is used to describe the absolute brightness of stars

Accepted Answer

luminosity

Answer

spectrography

Answer

gravity

Answer

density

Answer

parallax

Question 33

There are many STARS in our SOLAR SYSTEM

Accepted Answer

FALSE

Answer

TRUE

Question 34

From Earth, we can see about WHAT PERCENT of the Universe?

Accepted Answer

10%

Answer

25%

Answer

50%

Answer

90%

Question 35

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

Accepted Answer

Nebulas

Answer

Protostars

Answer

Supernova

Answer

Neutron Star

Question 36

The universe contains billions of galaxies, while galaxies contains billions of stars.

Accepted Answer

True

Answer

False

Question 37

What is the role of supermassive black holes in galaxies?

Accepted Answer

They influence the motion of stars and gas in the galaxy.

Answer

They are the primary source of light in galaxies.

Answer

They are responsible for the formation of new stars.

Answer

They have no significant role in galaxies.

Question 38

Which of the following best describes the role of dark matter in galaxies?

Accepted Answer

It provides the gravitational force needed to hold galaxies together.

Answer

It emits light that helps illuminate galaxies.

Answer

It is responsible for the formation of stars.

Answer

It is a type of visible matter found in galaxies.

Question 39

How many stars does a typical galaxy contain?

Accepted Answer

millions or billions

Answer

thousands

Answer

hundreds

Answer

Ten

Question 40

Evidence shows that stars and galaxies are moving away from Earth, some faster than others, which BEST suggests that the universe_________________

Accepted Answer

is expanding.

Answer

is shrinking.

Answer

was not formed by a big bang

Answer

has always been the same size.

Question 41

The vast majority of galaxies in our universe are moving away from us.  We know this because we observe __________ in the galaxies absorption spectra.

Accepted Answer

Redshift

Answer

Blueshift

Answer

Turbulance

Answer

Superposition

Question 42

The brightness of a star depends on its...

Accepted Answer

size and temperature

Answer

size

Answer

temperature

Answer

texture

Answer

All of these

Question 43

What is the name of the FORCE that allows planets to orbit the sun?

Accepted Answer

Gravity

Answer

Electromagnetism

Answer

Magnetism

Answer

Friction

Question 44

A star's brightness as if it were a standard distance from Earth

(In other words - if all stars were at an equal distance from the Earth) is called...

Accepted Answer

absolute brightness

Answer

apparent brightness

Answer

parallax

Answer

Hertzsprung Russell brightness

Answer

scaled brightness

Question 45

All stars "live" for the same amount of time

Accepted Answer

FALSE

Answer

TRUE

Question 46

What determines how long a star will "live"?

Accepted Answer

mass

Answer

volume

Answer

density

Answer

brightness

Answer

location

Question 47

An imaginary pattern of stars (Like Orion or Aquarius)

Accepted Answer

constellation

Answer

parallax

Answer

light-year

Answer

nebula

Question 48

About how long does it take the Sun's light rays to reach the Earth?

Accepted Answer

About 8 minutes

Answer

About 3 seconds

Answer

About 4.5 minutes

Answer

About 20 minutes

Answer

It is instantaneous

Question 49

As low mass stars begin to run out of fuel, their outer layers expand, and they become

Accepted Answer

red giants

Answer

nebula

Answer

black holes

Answer

constellations

Answer

neutron stars

Question 50

After a low mass star becomes a red giant, and the outer layers eventually drift off into space, what do we call the blue-white core of the star that is left behind?

Accepted Answer

white dwarf

Answer

neutron

Answer

super nova

Answer

nebula

Answer

quasar

Question 51

A neutron star is made from the materials left behind when WHAT explodes?

Accepted Answer

A high mass star (super giant)

Answer

A low mass star

Answer

A white dwarf

Answer

A nebula

Answer

A constellation

Question 52

A sphere of plasma that produces its own energy through nuclear fusion is called a

Accepted Answer

star

Answer

galaxy

Answer

solar system

Answer

planet

Question 53

Why does a star glow?

Accepted Answer

A star glows because of nuclear fusion in its core.

Answer

A star glows due to its size and mass.

Answer

A star glows because of its color.

Answer

A star glows from the heat of its surface.

Question 54

Stars have a life cycle - they are born and die.

Therefore - Stars are ALIVE.

Accepted Answer

FALSE

Answer

TRUE

Question 55

As the distance from Earth INCREASES, a star's apparent brightness...

Accepted Answer

Decreases

Answer

Increases

Answer

Stays the same

Question 56

What is the first stage in the life cycle of a star?

Accepted Answer

Protostar

Answer

Supernova

Answer

Black hole

Answer

Red giant

Question 57

What is a supernova?

Accepted Answer

A supernova is a powerful and luminous stellar explosion.

Answer

A rare type of flower found in the Amazon rainforest

Answer

A planet with extreme weather conditions

Answer

A type of black hole

Stars and Galaxies - Science Test

60 questions

A "light year" - is a measurement of...

Scientists classify stars based on...

Earth is located in THIS galaxy...

The Milky Way is THIS type of galaxy...

Galaxies that appear to have a bulge in the center and arms that move outward are called

Our SOLAR SYSTEM (our Sun and planets) formed about this many years ago

This is what we call the force that is causing the expansion of the universe to accelerate

Parallax is used to determine a star's

Which of the following is a major difference between elliptical galaxies and spiral galaxies?

A star is born when...

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