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Universe

Total questions: 61

Worksheet time: 1hrs 1mins

Name
Class
Date
1.
A large celestial body that is composed of gas and that emits light.
a)
star
b)
black hole
c)
element 
d)
big bang
2.
A collection of stars, dust, and gas bound together by gravity.
a)
Nebula
b)
Galaxy 
c)
Universe
d)
Protostar
3.
 A large cloud of gas and dust in interstellar space; a region in Space where stars are born.
a)
Protostar 
b)
Nebula
c)
Galaxy 
d)
Star
4.
The distance that light travels in one year; about 9.46 trillion kilometers.
a)
Light Year
b)
Light Kilometer 
c)
Light Second 
d)
Warp Speed
5.
 The actual brightness of an object such as a star
a)
Luminosity 
b)
Apparent Magnitude 
c)
Brightness 
d)
Light Year
6.
A gigantic explosion in which a massive star collapses and throws its outer layers into space.
a)
Black Hole 
b)
Supernova
c)
Neutron Star 
d)
Nebula 
7.
Which of the following is the largest?
a)
star
b)
universe
c)
cluster
d)
galaxy
8.
Light Years are a measure of - 
a)
time
b)
speed
c)
distance
d)
light
9.
Proxima Centauri is the closest star to Earth after the Sun and is located 4.3 light years away from Earth. How long does it take light from Proxima Centauri to reach Earth?
a)
1 year
b)
4.3 years
c)
43 years
d)
10 trillion years
10.
What process takes place inside a star to generate energy?
a)
Nuclear fission
b)
Hydrogen Creation
c)
Nuclear fusion
d)
Helium forming
11.
Gravity is the force objects put on each other because of their ______.
a)
mass
b)
friendliness
c)
acceleration
d)
speed
12.

________ holds all of the planets in orbit around the sun.

a)

Gravity

b)

Duct tape

c)

Bill Nye

d)

Glue

13.
In the diagram given, what happens as we move to the left?
a)
Stars get larger
b)
Stars get colder
c)
Stars get hotter
d)
Stars get smaller
14.

What are small pieces of old broken down rocks from comets called?

a)

Meteroids

b)

Asteroids

c)

Comets

15.

What are meteors?

a)

Small pieces of rock that have entered earth's atmosphere

b)

small pieces of rock that hit Earth's surface

c)

Small pieces of rock in outer space

16.

The Milky Way is a _____________________ galaxy.

a)

Elliptical

b)

Spiral

c)

Nebula

d)

Irregular

17.

A comet is like a ______________________

a)

small planet

b)

cratered moon

c)

large dirty snowball

18.

What is the Big Bang Theory?

a)

the origin of comets

b)

a huge explosion that formed the universe

c)

the asteroid belt

19.

According to this Hertzsprung-Russell Diagram which stars are brightest?

a)

Orange

b)

Red

c)

Blue

d)

Yellow

e)

White

20.
Black Holes are thought to be remnants of ______________ explosion.
a)
Death Star
b)
The Big Bang Theory
c)
Supernova
d)
Planetary Nebula
21.
Hertzsprung-Russell Diagram shows the correct order of decreasing surface temp for stars is?
a)
Red, Yellow, White, Blue
b)
Red, Yellow, Red, Yellow
c)
Blue, White, Yellow, Red
d)
Blue, Red, White, Yellow
22.
The Sun's position in the Milky Way galaxy is on the _______ of a spiral away from the center.Skip
17
a)
Center
b)
Edge
c)
Middle
d)
Outside
23.

Which stars have the highest surface temperature?

a)

Yellow

b)

Red

c)

Blue

d)

Orange

e)

White

24.
Betelgeuse is classified as a ____________ star.
a)
Supergiant
b)
Giant
c)
White Dwarf
d)
Main Sequence
25.
Our Sun is a ______________ star.
a)
Blue 
b)
Main Sequence
c)
Yellow
d)
Orange
26.
The stars with the lowest temperature are ________________.
a)
Orange
b)
Red
c)
Blue
d)
White
27.
Luminosity measures a star's _____________________.
a)
Color
b)
Temperature
c)
Brightness
28.
What information can the Electromagnetic Spectrum help you obtain from stars?
a)
Distance
b)
Temperature
c)
Chemical Composition
d)
All of them.
29.
A massive star could become a ______.
a)
Neutron Star
b)
Red Giant
c)
White Dwarf
d)
Average Star
30.
A huge collection of stars is a?
a)
Universe
b)
Galaxy
c)
Movie
d)
Nebulae
31.
Which type of galaxy has the highest percentage of old stars?
a)
Elliptical
b)
Irregular
c)
Spiral
d)
Hollywood
32.

Which has longer wavelengths?

a)

Radio

b)

Visible

c)

Gamma

d)

X-ray

33.

List of electromagnetic spectrum wavelengths from weakest to strongest

a)

Radio waves, micro waves, infrared, visible light, UV light, X-Ray, gamma rays, cosmic radiation

b)

micro waves, radio waves, infrared, visible light, UV light, X-Ray, gamma rays, cosmic radiation

c)

micro waves, radio waves, infrared, visible light, UV light, X-Ray, cosmic radiation, gamma rays

d)

There is no such thing as that

34.
What does the Big Bang theory suggest?
a)
The universe was just there
b)
The Milky Way is the only solar system
c)
The universe is continually expanding
d)
The universe started as a point, expanded, and will return to a point
35.

When a mass of hydrogen has enough density, it begins to fuse the hydrogen atoms together. This produces heat and light. What is this classified as?

a)

nebula

b)

star

c)

galaxy

d)

planet

36.

Which describes the location of star A correctly?

a)

Star A is less bright than the Sun and has a surface temperature above 25,000 K

b)

Star A is brighter than the Sun and has a surface temperature below 25,000 K

c)

Star A is less bright than the Sun and has a surface temperature of above 11,000 K

d)

Star A is brighter than the Sun and has a surface temperature below 11,000 K.

37.

What is the nearest star to planet Earth

a)

Moon

b)

Sun

c)

Sirius

d)

Proxima Centauri

38.

Which of these correctly identifies different objects in the universe according to their size and composition?

a)

A nebula is larger than a galaxy

b)

a solar system contains many stars

c)

a galaxy contains many solar systems

d)

a galaxy is bigger than a universe

39.

Which stars have the greatest luminosity according to this HR diagram?

a)

Hot white dwarf

b)

Hot main sequence star

c)

Cool super giant

d)

Cool giant

40.

Which galaxy is the largest in the local group?

a)

Milky Way

b)

Andromeda

c)

Triangulum

d)

Le Gentil

41.

How long would it take light from Proxima Centauri to reach Earth?

a)

1 year

b)

4.3 years

c)

43 years

d)

10 trillion

42.

It takes light approximately 8 minutes and 20 seconds for light from the Sun to reach Earth. Which is true about Earth's distance from the Sun

a)

The Sun is much less than 1 light year from Earth

b)

The Sun is 1 light year from Earth

c)

The Sun is 8.33 light years from Earth

d)

The Sun is so hot it burns

43.

Why does our Sun, an average sized star, appear so much brighter than other more massive stars?

a)

The Sun is lit

b)

The Sun is closer to Earth than other stars

c)

The Sun is made of different elements

d)

The Sun is prettier so it shines brighter

44.
What element made up about 75% of the early universe
a)
Hydrogen
b)
Helium
c)
Oxygen
d)
Carbon
45.
A force of attraction between any two objects is called _____________.
a)
static electricity 
b)
rotation
c)
gravity
d)
orbit
46.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular 
d)
Irrational
47.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Irrational
48.
The most commonly accepted theory that explains the beginning of our known universe is the -
a)
Theory of Evolution
b)
Big Bang Theory
c)
Cell Theory
d)
Blackhole theory
49.
Which section of the spectrum is the ONLY one we can see?
a)
X-rays
b)
Visible Light
c)
Gamma Rays
d)
Ultraviolet Rays
50.
Look at the H-R diagram. Which star is
sort of cool, dim (not too much light), and red?
a)
Betelguse
b)
Sirius B
c)
Procyon B
d)
Barnard's star
51.
Which fact about the SUN is FALSE?
a)
The sun is a medium sized star.
b)
The sun is near the center of a disc-shaped galaxy of stars.
c)
The sun is thousands of times closer to the Earth than any other star.
d)
The sun is about 2/3 of the way out from the middle of the Milky Way.
52.
Which of the following star remnants is the least massive?
a)
White Dwarf
b)
Neuton Star
c)
Black Hole
53.
Compared to the rest of the stars, our sun is considered...
a)
extremely large and cold
b)
small with a medium temperature
c)
medium size with medium temperature
d)
the largest in the universe
54.
Gravity pulls gases and dust particles in space toward one another, squeezing them into a smaller and smaller space. The temperature at the center rises high enough for nuclear fusion of hydrogen to begin.
What stage in a star's life cycle is this describing? 
a)
The birth of a star
b)
The death of a star
c)
Black Hole
d)
Stellar Nebula
55.
What are electromagnetic waves?
a)
sound waves
b)
energy that travels through space very quickly
c)
the best ones for surfing
d)
things like longitudinal waves
56.
All waves carry
a)
energy
b)
light 
c)
matter
d)
particles
57.
What stage comes directly before the "main sequence" in the life cycle of star?
a)
Cloud of Gas
b)
Red giant
c)
Protostar
d)
Shell of Gas
58.

What will be end of the universe

a)

The universe will keep expanding and dark energy won't change

b)

The universe will soon collapse and create a new universe

c)

The universe will be torn apart and dark energy will get a boost

d)

All the above

e)

Who knows

59.

What is the biggest black hole ever found

a)

Sagittarius A

b)

TON 618

c)

IC 1101

d)

S5 0014+81

e)

None of the above

60.

What is the brightest thing ever found

a)

3C 273

b)

Sirius A

c)

PSR J1748-2446ad

d)

TON 618

61.

What is the most complex multi star system ever found

a)

Nu Scorpii

b)

AU Cassiopeiae

c)

HD 139691

d)

Castor

e)

They don't exist

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