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Universe

Total questions: 59

Worksheet time: 47mins

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 small, hot, dim star that is the leftover center of an old sunlike star
a)
Red Dwarf
b)
White Dwarf 
c)
Main Sequence 
d)
Giant
7.
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 
8.
All stars are measured in what 
a)
degrees
b)
Fahrenheit 
c)
Celcius 
d)
Kelvin 
9.
Which of the following is the largest?
a)
star
b)
universe
c)
cluster
d)
galaxy
10.
Light Years are a measure of - 
a)
time
b)
speed
c)
distance
d)
light
11.
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
12.
What process takes place inside a star to generate energy?
a)
Nuclear fission
b)
Hydrogen Creation
c)
Nuclear fusion
d)
Helium forming
13.
Gravity is the force objects put on each other because of their ______.
a)
mass
b)
friendliness
c)
acceleration
d)
speed
14.
________ holds all of the planets in orbit around the sun.
a)
Gravity
b)
String
c)
Bill Nye
d)
Duct tape
15.
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
16.

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

a)

Meteroids

b)

Asteroids

c)

Comets

17.

What are the the 3 types of galaxies?

a)

Orbital, heliocentric, geocentric

b)

Irregular, Spiral, Elliptical

18.

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

19.

The Milky Way is a _____________________ galaxy.

a)

Elliptical

b)

Spiral

c)

Nebula

d)

Irregular

20.

A comet is like a ______________________

a)

small planet

b)

cratered moon

c)

large dirty snowball

21.

What is the Big Bang Theory?

a)

the origin of comets

b)

a huge explosion that formed the universe

c)

the asteroid belt

22.
According to this Hertzsprung-Russell Diagram which stars are brightest?
a)
Purple
b)
Red
c)
Blue
d)
Yellow
23.
Black Holes are thought to be remnants of ______________ explosion.
a)
Death Star
b)
The Big Bang Theory
c)
Supernova
d)
Planetary Nebula
24.
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
25.
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
26.
Which stars have the highest surface temperature?
a)
Yellow
b)
Red
c)
Blue
d)
Orange
27.
Betelgeuse is classified as a ____________ star.
a)
Supergiant
b)
Giant
c)
White Dwarf
d)
Main Sequence
28.
Our Sun is a ______________ star.
a)
Blue 
b)
Main Sequence
c)
Yellow
d)
Orange
29.
The stars with the lowest temperature are ________________.
a)
Orange
b)
Red
c)
Blue
d)
White
30.
Luminosity measures a star's _____________________.
a)
Color
b)
Temperature
c)
Brightness
31.
What information can the Electromagnetic Spectrum help you obtain from stars?
a)
Distance
b)
Temperature
c)
Chemical Composition
d)
All of them.
32.
A massive star could become a ______.
a)
Neutron Star
b)
Red Giant
c)
White Dwarf
d)
Average Star
33.
A huge collection of stars is a?
a)
Universe
b)
Galaxy
c)
Movie
d)
Nebulae
34.
Which type of galaxy has the highest percentage of old stars?
a)
Elliptical
b)
Irregular
c)
Spiral
d)
Hollywood
35.

Which has longer wavelengths?

a)

Radio

b)

Visible

c)

Gamma

d)

X-ray

36.

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

37.

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.

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.

What is the nearest star to planet Earth

a)

Moon

b)

Sun

c)

Sirius

d)

Proxima Centauri

40.

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

41.

Which galaxy is the largest in the local group?

a)

Milky Way

b)

Andromeda

c)

Triangulum

d)

Le Gentil

42.

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

43.

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

44.

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

45.
What element made up about 75% of the early universe
a)
Hydrogen
b)
Helium
c)
Oxygen
d)
Carbon
46.
A force of attraction between any two objects is called _____________.
a)
static electricity 
b)
rotation
c)
gravity
d)
orbit
47.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular 
d)
Irrational
48.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Irrational
49.
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
50.
Which section of the spectrum is the ONLY one we can see?
a)
X-rays
b)
Visible Light
c)
Gamma Rays
d)
Ultraviolet Rays
51.
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
52.
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.
53.
Which of the following star remnants is the least massive?
a)
White Dwarf
b)
Neuton Star
c)
Black Hole
54.
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
55.
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
56.
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
57.
All waves carry
a)
energy
b)
light 
c)
matter
d)
particles
58.
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
59.
________ holds all of the planets in orbit around the sun.
a)
Gravity
b)
String
c)
Bill Nye
d)
Duct tape

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