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8.8 The Universe - Stars, the Sun, EM Spectrum, Big Bang Theory

Total questions: 61

Worksheet time: 59mins

Name
Class
Date
1.
What color of star is the hottest?
a)
Blue
b)
Red
c)
Yellow
d)
Orange
2.
What color of star is the coolest?
a)
Red
b)
Yellow
c)
Blue
d)
White
3.
What is the name of the largest stars?
a)
Protostars
b)
Supergiants
c)
Red Giants
d)
Dwarf Stars
4.
What is the name of the gas/dust clouds that form stars?
a)
Nebulas
b)
Protostars 
c)
Supernova
d)
Neutron Star
5.
What is the name of the explosion at the death of a massive star?
a)
Supergiant
b)
Supernova
c)
Black Hole
d)
Nebula
6.
What word best describes our sun?
a)
Average
b)
Supergiant
c)
Dwarf
d)
Red Giant
7.
What is the name of the star in our solar system?
a)
Venus
b)
Sun
c)
Jupiter
d)
Mars
8.
The H-R diagram is a graph that shows the relationship between ______________ for stars. 
a)
temperature and color
b)
temperature and brightness
c)
brightness and color
d)
distance and brightness
9.

All stars begin their life in a _____.

a)
Main Sequence
b)
Nebula
c)
Protostar
d)
Black Dwarf
10.
______ is a force that causes dust particles to stick together in a nebula.
a)

Nuclear fusion

b)

Gravity

c)

Hydrogen

d)

Friction

11.
Most stars are made of which elements?
a)
Hydrogen only
b)
Hydrogen and Lithium
c)
Hydrogen and Sodium
d)
Hydrogen and Helium
12.
A ________ is an object so dense with so much gravity that even light cannot escape.
a)

Neutron star

b)

White dwarf

c)

Black hole

d)

Black dwarf

13.
A supergiant might explode and become a_____.
a)

Main sequence stars

b)

White dwarf

c)

Supernova

d)

Nebula

14.

The professional who studies the stars is _____.

a)

An astronaut.

b)

An astrologer.

c)

An astronomer.

15.
Why do stars in the night sky look so small?
a)

Stars are small

b)

Stars are close

c)

Stars are far away

16.

Our galaxy is called the _____.

a)
Earth Nebula
b)
The Hubble Galaxy
c)
The Milky Way
d)
The Snickers
17.

What will be the next stage in our star the sun's life cycle?

a)

Supernova

b)

White dwarf

c)

Blackhole

d)

Red giant

18.

A small, hot star near the end of its life is a star called a _____.

a)

White dwarf

b)

Red dwarf

c)

Supergiant

d)

Protostar

19.
A black hole is an object so dense with so much gravity that even ________ cannot escape.
a)

Gravity

b)

Galaxies

c)

Spaceships

d)

Light

20.

The Sun is our star made mostly of _____.

a)

Helium

b)

Hydrogen and helium

c)

Hydrogen

d)

Helium, hydrogen, and gold

21.
Which electromagnetic waves have the highest frequencies and the shortest wavelengths?
a)

Microwaves

b)

Visible light

c)

Gamma rays

22.
How much of the electromagnetic spectrum is made up of visible light?
a)

Only a small portion

b)

A very large portion

c)

About half

23.
Which electromagnetic waves help doctors detect broken bones inside your body?
a)

Gamma rays

b)

X-rays

c)

Ultraviolet rays

24.

Astronomers have invented telescopes that allow us to "see" beyond the visable range?

a)

True

b)

False

25.

Which color has the longest wavelength?

a)

Red

b)

Orange

c)

Yellow

d)

Blue

26.

Which color has the shortest wavelength?

a)

Red

b)

Orange

c)

Yellow

d)

Blue

27.

The Big Bang Theory is the most widely accepted theory about the origin of the universe.

a)

True

b)

False

28.

Which description is considered most accurate regarding what actually happened during the Big Bang?

a)

Two galaxies collided causing an immense explosion as stars crashed into one another

b)

All of what would become the universe was concentrated in a single small point, or singularity, which rapidly expanded into what is now stars, planets, galaxies, matter, and energy.

c)

All matter emerged from a massive black hole at the center of the universe.

d)

Parts of the sun were ripped off by massive internal explosions and were thrown into space where they cooled to become other things, like plants, comets, and other galaxies.

29.

If something that makes light is moving away from you, it spreads the wavelengths of light out. This application of the Doppler effect is known as _____.

a)

Blue shift

b)

Green shift

c)

Red shift

d)

Black shift

30.

A date that is commonly accepted by Big Bang theorists for the Big Bang is ____ years ago.

a)

One hundred thousand

b)

Two hundred and fifty million

c)

Thirteen point seven billion

d)

Ten trillion

31.

Most distant galaxies show a red shift. This is considered evidence that the universe is _____.

a)

Getting cooler

b)

Expanding

c)

Condensing into a small point

d)

Swirling around

32.

A galaxy showing blue shift is _____.

a)

Very cold

b)

Moving towards us

c)

Dying

d)

About to supernova

33.

Observations of space indicate that most matter in the universe is _____.

a)

Hydrogen, helium, and dark matter

b)

Gold and plutonium

c)

Oxygen and water vapor

d)

Carbon

34.

Big Bang theorists believe that there should be energy left over from the Big Bang, and it should be in the form of _____.

a)

Low level microwave energy

b)

Extreme heat

c)

A swirling vortex

d)

Visible light

35.

What instrument has allowed us to look deep into space to observe things far away that give us hints to the past?

a)

The Hubble telescope

b)

The Eiffel Tower

c)

Binkley's barometer

d)

The Smith Space Balloon

36.

Galaxies that are REDSHIFTED are _____.

a)

Actually BLUE

b)

Really NEAR earth

c)

Invisible or not visible

d)

Moving AWAY from us

37.

If something that makes light is moving AWAY from you, it spreads the wavelengths of light out. This application of the Doppler effect is known as _____.

a)

Blue shift

b)

Green shift

c)

Red shift

d)

Black shift

38.

A DATE that is commonly accepted by Big Bang theorists for the Big Bang is ____ years ago.

a)

100,000

b)

250 million

c)

13.8 billion

d)

10 trillion

39.

A galaxy showing BLUE SHIFT is _____.

a)

Very cold

b)

Moving TOWARDS OR TO us

c)

Dying

d)

About to supernova

40.

BLUE SHIFT of light means the star is moving _____.

a)

Toward Earth

b)

Away from Earth

c)

Not moving

41.

RED SHIFT is proof that the universe is _____.

a)

Expanding (getting bigger)

b)

Contracting (getting smaller)

42.

Ever since the universe began, the universe has been _____.

a)

Expanding

b)

Contracting

c)

Stays the same size

43.

Which of the following is EVIDENCE for the Big Bang Theory?

a)

Similar composition of Earth and the Moon

b)

Stars appear to move

c)

Cosmic background radiation

44.

Cosmic Background Radiation is _____.

a)

The remaining energy from the Big Bang.

b)

Incredibly hot.

c)

Visible to the human eye.

d)

Only located in certain places in the universe.

45.
In the diagram given, what happens as we move to the left?
a)

Stars get larger

b)

Stars get colder

c)
Stars get hotter
46.

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
47.
Which category is our Sun located in?
a)
White Dwarfs
b)
Supergiants
c)
Main Sequence
d)
Giants
48.

The H-R Diagram shows a relationship of a star's surface temperature and its _____.

a)

Color

b)

Size

c)

Apparent magnitude

d)

Absolute magnitude

49.

The effective temperature of a star is related to its _____.

a)

Solar system

b)

Luminosity

c)

Absolute magnitude

d)

Color

50.
Use the diagram to answer the question.Using the figure, Aldebaran, Mira, and Pollux are all _____ stars.
a)

Giant

b)

Supergiant

c)

Main-sequence

d)

White Dwarf

51.
Use the Hertzsprung-Russell Diagram to answer the following question.  Betelgeuse is a _____
a)
Hot and Bright Star
b)
Cool and Bright Star
c)
Hot and Dim Star
d)
Cool and Dim Star
52.

Use the Hertzsprung-Russell Diagram to answer the following question. Spica is a _____

a)

Hot and Bright Star

b)

Cool and Bright Star

c)

Hot and Dim Star

d)

Cool and Dim Star

53.

Use the Hertzsprung-Russell Diagram to answer the following question. Sirius B is a _____

a)

Hot and Bright Star

b)

Cool and Bright Star

c)

Hot and Dim Star

d)

Cool and Dim Star

54.

Use the Hertzsprung-Russell Diagram to answer the following question. Epsilon Eridani is a _____

a)

Hot and Bright Star

b)

Cool and Bright Star

c)

Hot and Dim Star

d)

Cool and Dim Star

55.

John observes three different colored stars.  What can John infer about the three stars?

a)
The three stars have different temperatures
b)
The three stars have the same temperatures
c)
The three stars have the same luminosity
d)
The three stars have different luminosity
56.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular 
d)
Irrational
57.
The Milky Way galaxy is described as a disk of stars orbiting a central point on the disk. Which of these best explains why people on Earth cannot see the entire shape of the Milky Way?
a)
Earth is a part of this galaxy
b)
Many more stars exist outside the galaxy
c)
The stars in the center of the galaxy are extremely small.
d)
The center of the galaxy consists of a dense cluster of stars.
58.
What can you tell about this object's motion?
a)
Moving to the North (up).
b)
Moving to the South (down). 
c)
Moving to the West (left). 
d)
Moving to the East (right). 
59.
What can you tell about the motion of this object?
a)
Moving left.
b)
Moving right quickly.
c)
Standing still. 
d)
Moving up slowly. 
60.
What direction is this object moving?
a)

Left

b)

Right

c)

Up

d)

Down

61.

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.