WorksheetsBig Bang Theory Review
Total questions: 18
Worksheet time: 9mins
Name
Class
Date
1.
What can the spectrum of a star tell us?
a)
Age of the star
b)
Star's chemical composition
c)
Star's elements
d)
Star's chemical composition & elements
2.
What spectrum is one that it is an uninterrupted band of color?
a)
Absorption
b)
Emission
c)
Continuous
d)
None of the above
3.
What spectrum is one that is a continuous spectrum with dark lines running through it?
a)
Absorption
b)
Emission
c)
Continuous
d)
None of the above
4.
What spectrum is one that is a series of bright lines of particular wavelengths produced by a hot gas under low pressure?
a)
Absorption
b)
Emission
c)
Continuous
d)
None of the above
5.
What spectra do we use for most stars?
a)
Absorption
b)
Emission
c)
Continuous
d)
None of the above
6.
What is the apparent change in frequency of electromagnetic or sound waves caused by the relative motions of the source and the observer?
a)
Doppler effect
b)
Microwaves
c)
Speed of light
d)
Infrared
7.
As an ambulance is going away the pitch is _____________.
a)
lower
b)
higher
8.
As an ambulance is going away the wavelengths _____________.
a)
increase
b)
decrease
9.
As a light source (star) is moving away from the observer, the light becomes __________
a)
Greener
b)
Yellower
c)
Redder
d)
Bluer
10.
What is the name of our Galaxy
a)
Andromeda
b)
Dwarf Galaxy
c)
Milky Way
d)
None of the above
11.
What law states that the galaxies are retreated from the Milky Way at a speed that's proportional to their distance?
a)
Hubble's Law
b)
Newton's 1st Law
c)
Einstein's Theory of Relativity
d)
Kepler's 2nd Law
12.
What have astronomer's concluded based on the observed red shifts in the spectral lines of distant galaxies?
a)
Universe is getting smaller
b)
Universe is expanding
c)
Universe size isn't changing
13.
How old is our universe according to the Big Bang Theory?
a)
We don't know
b)
15 billion years
c)
13.7 billion years
d)
11 billion years
14.
Cosmic background radiation is remnants of the _______.
a)
big bang
b)
solar flare
c)
supernova
d)
none of the above
15.
Our universe is made of ________ hydrogen
a)
25%
b)
35%
c)
74%
d)
82%
16.
Red shifts are NOT evidence of the big bang.
a)
True
b)
False
17.
Cosmic background radiation is evidence of the Big Bang Theory.
a)
True
b)
False
18.
The universe being composed of 74% hydrogen and 25% helium is evidence of the Big Bang Theory.
a)
True
b)
False
100 %
