Download Video Worksheet Beyond the Big Bang (Part 2 of 2)

NAME: _____________________
Videotape -- Beyond the Big Bang (Part 2)
Answer the following questions while watching the videotape. Hand in to instructor at the
completion of the videotape.
1. In 1925, Edwin Hubble developed a method to link the brightness of a star with the distance.
The term he used to identify a star's brightness was called a ___________________.
2. Using this method, he discovered that the ____________________ galaxy was in fact
a separate galaxy from our Milky Way.
3. In 1929, Hubble discovered that most galaxies were not static, but were moving __________
from us and from each other, proving that the universe was ________________________.
4. Hubble wrongly calculated that the universe was only _________ billion years old.
5. The theory of the universe's origin was first proposed by scientist Georges Lemaitra, a
Roman Catholic Priest, and his theory was embraced by the _______________ who
interpreted the theory as de facto proof of Genesis.
6. Fred Hoyle's alternative theory to the Big Bang was that all the elements in the universe were
created in the womb of _______________ through the process of _________________.
7.
But Hoyle's theory couldn't account for the formation of __________________ which would
have been needed in the earliest stars and made up ___________ percent of the detectable
universe.
8. Hoyle argued that the universe is in a _______________ _________________ and that the
hydrogen and helium were already in the universe before the first stars were formed.
9. In 1965, the "smoking gun" for the Big Bang was the ____________________ heat, the
leftover heat from the enormous heat and pressure of the Big Bang. This heat was what we
know as __________________________ radiation.
10. The other major discovery supporting the Big Bang was the calculations showing that the
heaviest elements could only be produced in the intense pressure and temperature of
__________________ __________________ explosions.
11. One of the problems of the Big Bang is that the ________________________ is the same
from one end of the universe to the other....this is not expected since the universe is not
____________ enough for this to occur.
12. One theory is called ___________________, which says that in the earliest moments of the
Big Bang, a super _____________ allowed things to move faster than the speed of light.
13. In 2001, NASA launched a satellite, known as _________________, to photograph the fossil
remnant heat that Penzias and Wilson had found in 1965, essentially a baby picture of the
universe,
Match the following times after the Big Bang to the event:
14. ______
`
The first billionth of a second
A. The "Super Force" decays into the four
known forces (gravity, eletromagnetism,
strong and weak nuclear forces
15. ______
1 second
B. Stars form, creating the first elements of
nitrogen, oxygen, and carbon
16. ______
3 min
C. Matter and gravity combine to form a
typical star, our Sun
17. ______
380,000 years
D. A bubble forms, called the primordial
atom containing a super force and
unimaginable temperature and pressure
18. ______
1 billion years
E. JROTC students learn about the origins of
the universe on the planet Earth
19. ______
9 billion years
F. The temperature of the universe drops to
1 billion degrees, allowing Hydrogen and
Helium to form
20. ______
13.7 billion years
G. Light first travels through the universe, a
burst of radiation we still detect today as
background radiation