Download The Universe Big Bang

Name:
Date: 12/08/21
Period: 2
The Universe: “Beyond the Big Bang” Video Questions
1.The Big Bang is the “theory of cosmic __________.”
2.What is a major problem with the Big Bang theory?
3.The Big Bang theory only deals with the _________.
4.What is the sun mostly made of?
5.What is the surface temperature of the Sun?
6.When did our Solar System form?
7.How many stars in the Milky Way might have planetary systems like ours?
8.To explain nature, earlier people described celestial bodies like stars and planets as
__________.
9.The nighttime sky is basically a large __________.
10.To early astronomers, it appeared that _________ was the center of the Universe.
11.What were the 2 types of stars the Greeks observed, with their two main
characteristics?
a. _____: ______and ______
b. _____: ______and ______
12.How did Aristotle imagine the Universe looked?
13.What did Ptolemy figure out and predict?
14.Why didn’t Astronomy progress after the collapse of Rome?
15.How many years lapsed between the fall of Rome and renewed interest in
Astronomy?
16.What is the Heliocentric universe?
17.What two things did Nicolas Copernicus discover about Earth?
18.What were two of Johannes Kepler’s contributions to the understanding of planetary
orbits?
19.What tool (instrument) was invented that changed Astronomy?
20.Give two examples of discoveries made by Galileo using the telescope.
21.Why did Galileo get in trouble with leaders of the Catholic church?
22.Isaac Newton united the theories of Kepler and Galileo into what new theory?
23.Newton’s Book Principia explained how objects _____ on each other.
24.Newton knew that gravity worked but he never __________or _________it.
25.Albert Einstein revolutionized our understanding of _____and _____.
26.Einstein didn’t like the idea of a dynamic, finite universe. He preferred a ________
and _________ universe.
27.What did Einstein include as part of his theory of General Relativity?
28. Einstein proposed that gravity worked because space and time were __________
in the presence of matter.
29. Despite what Einstein believed, his theories led to the idea of a moment of ______.
30.What was George Lemaître’s profession?
31.What radical idea was Lemaître’s contribution to understanding the universe?
32.Lemaître theorized that the universe came from a __________ atom.
33.In 1925 the Milky Way galaxy was considered to be the __________.
34.Edwin Hubble solved the problem of measuring distance between stars by using the
_______________.
35.How far away is the Andromeda galaxy?
36.How many light years might the universe be in size?
37.Hubble revealed that the universe was much __________than originally imagined.
38.What was the competing theory of creation of the universe?
39.Hoyle based that theory on the __________ of elements.
40.What is nucleosynthesis?
41.Everything that forms after Helium is __________.
42.Hydrogen is what percentage of the detectable universe?
43.What was the problem with Hoyle’s preferred theory?
44.Who opposed the Steady State theory?
45.Alpher and Herman refined Lemaître’s prediction of detectable remnant _____, left
over from the Big Bang.
46.What was a problem for the Big Bang theory in the 1940s?
47.While conducting satellite communication experiments for Bell Labs, Penzias and
Wilson heard ____________________.
48.Where did the sounds that Penzias and Wilson heard originate?
49. What was the “smoking gun” that Penzias and Wilson discovered?
50.In the end, parts of Gamov’s and Hoyle’s theories were shown to be __________.
51.Why is the temperature uniform in space?
52.Guth theorized that the Universe expanded faster __________.
53.Guth called his theory __________.
54.What did the WMAP satellite chart?
55.What is expected to happen to our Sun 5 billion years from now?
56.What will happen to the gas giant planets of our solar system, after the Sun’s nebula
arrives?
57.What is the newest theory for the destruction of the universe?