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Formation of the Universe HW

Total questions: 22

Worksheet time: 22mins

Name
Class
Date
1.
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.
2.
If a star is being observed from Earth and it's light has shifted towards the red side of the electromagnetic spectrum it would be...
a)
Moving towards the Earth
b)
Moving away from the Earth
c)
This is a trick question that cannot be answered
d)
It isn't a star, it is a very large blueberry.
3.
The vast majority of galaxies in our universe are moving away from us.  We know this because we observe __________ in the galaxies absorption spectra.
a)
Redshift
b)
Blueshift
c)
Turbulance
d)
Superposition
4.
When someone is playing music by the road and you drive pass him, the music will _______
a)
become higher and then lower
b)
become lower and then higher
c)
become lower
d)
become higher
5.
In red shift, the wavelengths of light become
a)
Bluer
b)
shorter
c)
longer
6.
The theory that the universe began with a tremendous explosion is called...
a)
the raisin-bread model
b)
cosmology
c)
cosmic background radiation
d)
the big bang theory
7.
According to the big bang theory, all the contents of the universe was compressed under extreme...
a)
pressure, temperature, and density.
b)
temperature, shape, and color.
c)
density, temperature, and shape.
d)
pressure, color, shape.
8.
Scientists think that the universe will...
a)
end someday.
b)
eventually shrink.
c)
expand forever.
d)
expand and shrink on a regular basis.
9.

The galaxy we are a part of is called:

a)

Milky Way

b)

Andromeda

c)

Whirlpool

d)

Sombrero

10.

What does the Big Bang Theory tell us. Select all that applies.

a)

About the popular television show.

b)

the entire universe was once condensed in the form of primeval atom, or a dense mass.

c)

how the universe began.

11.

Most scientists believe the Big Bang Theory explains which of the following questions?

a)

How our planets and moons formed

b)

How our universe began

c)

How the sun turns hydrogen into helium

d)

How fast light travels through space

12.

Light emitted from a star or galaxy can be separated into a band of colors, called a ________.

a)

Red Shift

b)

Wave Length

c)

Spectrum

d)

Microwave

13.

How does the abundance of hydrogen and helium support the Big Bang Theory.

a)

Hydrogen and helium are elements on the Periodic Table

b)

Hydrogen and helium are in the same ratio throughout the universe.

c)

Hydrogen and helium have many current uses today

14.

Our theory of the universe was confirmed by the discovery of:

a)

fusion.

b)

cosmic background radiation.

c)

the Andromeda galaxy.

d)

the Doppler effect.

15.
The universe is expanding!  This means that:
a)
all of the galaxies are spreading out.
b)
the universe must have started from a single point.
c)
the universe is cooling down.
d)
all of the above.
16.

What shape is the Milky Way galaxy?

a)

Elliptical

b)

Spiral

c)

Irregular

17.
How old do scientists think the Universe is?
a)
13.8 billion years old
b)
4.5 billion years old
c)
24,000 years old
d)
5 years old
18.
What 2 things make up everything in the Universe?
a)
Matter and Heat
b)
Energy and Matter
c)
Energy and Dust
d)
Mass and Volume
19.
What is the best evidence for the Big Bang theory?
a)
How fast light can travel
b)
The expansion of the Universe
c)
Creation of new planets
20.
The distance light can travel in 1 year is called...
a)
Light Year
b)
Light Distance
c)
Space year
21.

BLUE shift of light means the star is moving

a)

toward Earth

b)

away from Earth

c)

not moving

22.

RED shifted light has a

a)

shorter wavelength

b)

longer wavelength

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