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Hierarchy of the Universe and Big Bang

Total questions: 19

Worksheet time: 11mins

Name
Class
Date
1.
Are any of the galaxies moving towards Earth?  Explain.
a)
A.  It is redshifted
b)
B. It is redshifted.
c)
C. It is blue shifted.
d)
A. It is blueshifted.
2.
Based on  Hubble’s Law, which of the galaxies is farthest from Earth?
a)
A
b)
c)
C
3.

Based on the spectrums in the figure,  rank the galaxies in order of the speed with which they are moving away from Earth, from slowest (1) to fastest (3).

a)

A, B

b)
A, B, C
c)

C

d)
A, C, B
4.

Evidence suggests that the whole Universe is expanding and that it might have started billions of years ago from one place with the big bang.

a)
True
b)
False
5.
The Hubble constant measures the
a)
current expansion rate of the universe
b)
the universe began in a hot, dense state
c)
curvature of space in the universe
d)
temperature of the universe
6.
The existence of the cosmic background radiation implies that
a)
the big bang model is wrong.
b)
the universe began in a hot, dense state.
c)
the universe did not have a moment of creation.
d)
the universe began in a cold, low-density state. 
7.
If an object is moving toward us, its spectrum will experience
a)
no shift
b)
red shift
c)
black spectrum
d)
blue shift
8.

Hubble observed that galaxies are

a)
expanding
b)
moving away from us
c)
moving towards us
d)
standing still
9.
The value of the Hubble constant is equal to the ratio of
a)
velocity and distance
b)
distance and mass
c)
mass and luminosity
d)
velocity and mass
10.

Which of the following is NOT evidence of the Big Bang Theory?

a)

most galaxies are red-shifted

b)

CMBR everywhere

c)

the universe is gaining matter

d)

the universe is expanding

11.
What do the initial moments after the Big Bang have in common with the universe as it exists now? 
a)
all the stars, galaxies, and planets that exist today were formed just a few moments after the Big Bang
b)
The universe back then could not sustain life, and it cannot sustain life now
c)
the universe was extremely hot then, and it is still extremely hot not
d)
the universe began expanding then, and it is still expanding today
12.
Which piece of evidence supports the Big Bang theory?
a)
The more distant galaxies are moving the slowest
b)
The more distant galaxies are moving the quickest
c)
The more distant galaxies are moving towards us
d)
Galaxies and space is not changing
13.
Why is the light from distant galaxies red-shifted?
a)
They produce more red light than nearby galaxies
b)
They are moving away from us
c)
The longer wavelengths are filtered out more by dust
d)
They are moving toward us
14.
About how long ago do scientists believe the universe began?
a)
13-14 billion years ago
b)
13-14 million years ago
c)
12-13 billion years ago
d)
12-13 million years ago
15.
How do astronomers estimate the approximate age of the Universe?
a)
It is equal to the Hubble constant (H).
b)

Age = 1/H

c)
c.  Age = 10/H
d)

d.  It is not possible to calculate the age of the Universe.

 d.  It is not possible to calculate the age of the Universe.

16.
The name for the law that relates the velocity of recession of a galaxy to its distance is:
a)
The bubble law
b)
The Hubble law
c)
Murphy's law
d)
Einstein's law
17.
Why is the CMB so cool now? 
a)
The expansion of the Universe has cooled the radiation and stretched its wavelengths
b)
Dense clouds of dust have blocked most of it. 
c)
The cosmological constant has "squashed" its wavelengths and cooled it. 
d)
Hydrogen atoms have condensed on it and chilled it.
18.
In red shift, the wavelengths of light become
a)
Bluer
b)
shorter
c)
longer
19.

The homogeneous 3 degree background radiation is direct evidence that

a)

the Earth formed 4.6 billion years ago.

b)

galaxies formed 10 billion years ago.

c)

the big bang took place.

d)

none of the above