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Universe & Galaxy & Stars Test review

Total questions: 47

Worksheet time: 31mins

Name
Class
Date
1.

Which of the following correctly places these in order from LARGEST to SMALLEST?

a)

galaxy -- local group/cluster -- planet -- solar system -- universe

b)

universe -- galaxy -- solar system -- planet

c)

planet -- solar system -- galaxy -- universe

d)

universe -- galaxy -- solar system -- local group/cluster -- planet

2.

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

a)

elliptical

b)

humanoid

c)

irregular

d)

spiral

3.

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

a)

Universe

b)

Galaxy

c)

Solar System

d)

Planet

4.
What best describes the doppler effect?
a)
An apparent change in frequency of a wave due to the relative motion between a wave source and an observer
b)
When sound changes pitch
c)
When light changes color
d)
An apparent change in the amplitude of a wave due to the relative motion between a wave source and an observer.
5.
If a star is being observed from Earth and it's light has shifted towards the red side of the electromagnetic spectrum it would be...
a)
Moving towards the Earth
b)
Moving away from the Earth
c)
This is a trick question that cannot be answered
d)
It isn't a star, it is a very large blueberry.
6.
Use the image to identify the motion of the object relative to Earth.  Compare the absorption spectra of the star to what the star would look like if it were not moving at all relative to Earth.
a)
It is not moving
b)
It is moving away from Earth (Redshift)
c)
It is moving towards Earth (Blueshift)
d)
It is moving towards Earth (Redshift)
7.

What does the Big Bang Theory tell us

a)

About the popular television show.

b)

the entire universe was once condensed in the form of a dense mass called a singularity

c)

It explain exactly how the universe began.

8.

How does the abundance of hydrogen and helium support the Big Bang Theory.

a)

Hydrogen and helium are elements on the Periodic Table

b)

Hydrogen and helium are in the same ratio throughout the universe.

c)

Hydrogen and helium have many current uses today

9.
Our theory of the universe was confirmed by the discovery of:
a)
fusion.
b)
cosmic microwave background radiation.
c)
the Andromeda galaxy.
d)
the Doppler effect.
10.

How far across is the Milky Way Galaxy?

a)

100 light years across

b)

1,000 light years across

c)

10,000 light years across

d)

100,000 light years across

11.

The vast spherical cloud of oldest stars surrounding the Milky Way is called ___

a)

the crown of light

b)

the aurora

c)

the corona

d)

the halo

12.

According to the standard model of Big Bang cosmology, approximately how old is the Universe?

a)

65 million years old

b)

3.8 billion years old

c)

13.7 billion years old

d)

4.5 billion years old

13.

What unit of measurement is used to calculate distance in our universe?

a)

astronomical units

b)

kilometers

c)

light years

d)

parsecs

14.

What is the time taken for the light to travel between the Sun and Earth?

a)

4 minutes

b)

8 minutes

c)

12 minutes

d)

2 minutes

15.

Proxima Centauri is ______ light years away.

a)

6.8

b)

2.5

c)

4.3

d)

5.4

16.

Most of the universe is made of

a)

visible matter

b)

Invisible matter

c)

dark energy

d)

dark energy and dark matter

17.

Galaxies are classified and named according to their

a)

shape

b)

wavelength

c)

distance from Earth

d)

cosmic background radiation

18.

Dark matter is a theoretical substance. What does this mean?

a)

Scientists have simply guessed that it exists

b)

There is evidence for its existence, but it hasn't been proven

c)

Scientists are certain that it exists

d)

Scientists are split 50/50 over whether it exists or not

19.

Figuring out what the Milky Way looks like is difficult because

a)

we live outside of it.

b)

it is impossible to send a space probe that far.

c)

we live inside of it.

d)

it is full of dark matter.

20.

Reflecting telescopes use _______ to focus light.

a)

Lenses

b)

Flat mirrors

c)

Curved Mirrors

d)

A lens and lasers

21.

A refracting telescope uses _______ to focus light.

a)

Lenses

b)

Mirrors

c)

Lasers

d)

Water

22.

Which of these can solve the issue of atmospheric blurring?

a)

polishing the lens

b)

only using the telescope when it's a clear night

c)

putting the telescope in space

d)

putting the telescope underground

23.
The electromagnetic spectrum consists of
a)
all of the colors of light you can see with your eyes.
b)
all of the different types of electromagnetic waves.
c)
a band of colors formed when white light passes through a prism.
d)
the distance between the crest of one wave and the crest of the next wave.
24.

The H-R diagram classifies stars based on what factors?

a)

Temperature and luminosity

b)

Number of planets

c)

What constellation they're in

d)

Temperature and fusion

25.

Our sun is what kind of star?

a)

Blue giant

b)

Red giant

c)

Main sequence

d)

White dwarf

26.

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

a)

Hotter and brighter

b)

Hotter and not as bright

c)

Colder and brighter

d)

Colder and not as bright

27.

Which star has a longer life, a main sequence star or a blue giant?

a)

Main sequence star

b)

Blue giant

28.
In the diagram given, what happens as we move to the left?
a)
Stars Get Larger
b)
Stars get Colder
c)
Stars get hotter
29.
Which star is the coldest?
a)
Yellow Star
b)
Red Star
c)
Orange Star
d)
Blue Star
30.
The category that contains the most stars is...
a)
Main Sequence
b)
Supergiants
c)
Giants
31.
Where is the weakest area of the magnetic field around Earth?
a)
Equator
b)
Poles
32.
What causes aurora borealis or northern lights?
a)

The Corona

b)

Prominences

c)

Sunspots

d)

Solar Winds

33.
What are large loops on the surface of the sun that release a large amount of energy? 
a)
Corona
b)
Photosphere
c)
Sunspiots
d)
Prominences
34.
This is the only layer seen during a total solar eclipse? 
a)
Corona
b)
Photosphere
c)
Core
35.

What are intense explosions on the surface of the sun that send charged particles toward Earth?

a)

Prominences

b)

Sunspots

c)

Solar Flares

d)

Corona

36.

The thin layer below the corona.

a)

chromosphere

b)

core

c)

corona

d)

convective zone

e)

radiative zone

37.

The layer of the sun where solar energy is created.

a)

chromosphere

b)

core

c)

corona

d)

convective zone

e)

radiative zone

38.
Label part 1
a)
#1 Core
b)
#1 Radiation zone
c)
#1 Convection zone
d)
#1 Photosphere
39.
Label part 6
a)
#6 Prominences
b)
#6 Corona
c)
#6 Sunspots
d)
#6 Photosphere
40.
Label part 5
a)
#5 Chromosphere
b)
#5 Radiation zone
c)
#5 Convection zone
d)
#5 Photosphere
41.
Label Part 3
a)
#3 Chromosphere
b)
#3 Radiation zone
c)
#3 Convection zone
d)
#3 Photosphere
42.
Label Part 2
a)
#2 Core
b)
#2 Radiation zone
c)
#2 Convection zone
d)
#2 Corona
43.
A star is born when ________________ begins to happen.
a)
nuclear fusion
b)
nuclear abrasion
c)
crying
d)
nuclear fission
44.
When a Red Giant's outer atmosphere drifts away it is now known as a ____________.
a)
planetary cloud
b)
White Dwarf cloud
c)
planetary nebula
d)
expanding nebula
45.
All stars in the main sequence stage are fusing ________ into ________ in their cores.
a)
hydrogen into helium
b)
helium into carbon
c)
oxygen into iron
d)
helium into hydrogen
46.
What is the relationships between the size of a star and its lifetime?
a)
The larger the star, the shorter the lifetime.
b)
The larger the star, the longer the lifetime.
47.
What is the correct life cycle of a star like our Sun?
a)
Nebula, main sequence, red supergiant, supernova, black hole, neutron star
b)
nebula, main sequence, red giant, planetary nebula, white dwarf, black dwarf 
c)
Main sequence, white dwarf, red giant, red supergiant, nebula
d)
Nebula, main sequence, brown dwarf, white dwarf, black dwarf

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