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Test review question 1

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Richard Datwyler

on 24 October 2017

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Transcript of Test review question 1

Test review question 1

Galaxies are seen moving away from us because
A. Space itself is expanding
B. Galaxies are traveling through space
C. Earth is at the center of the universe
D. Starlight is forcing the galaxies apart
Test question two

Approximate the number of stars in the universe
A. 1 billion
B. 100 billion
C. 1 million million
D. 100 Billion Billion +
The universe is about.....
A. 7,000 years old
B. 4.54 Billion years old
C. 13.7 Billion years old
D. Eternal, ie., it lacks a beginning or an end
At the Big Bang, everything was condensed into a hot, dense, small sphere, and then everything in that sphere exploded into the universe - like shrapnel from a grenade.
A. True
B. False
We learn through observation, and we make inferences from what we observe.
How can we learn about Stars ? or Galaxies?
What can we learn? (for instance about a distant star?)
a. Brightness
b. Temperature
c. Motion
d. Composition
e. All of these and more
Test style question 1

Who was the first to suggest the idea of the Big Bang Theory
A Einstein
B Galileo
C Lemaitre
D Hubble
Test question 2

From Hoyle's idea of a steady state universe he did predict which correctly
A. origin of Heavy elements
B. distances to other galaxies
C. origin of hydrogen
D. Size of universe
Test style question 1

If the Milky way were the size of a DVD
how much of the Universe could we fit in this room? (hint our galaxy is 100,000 ly)
A Only our galaxy
B Only one other galaxy
C Our local cluster of galaxies
D All of it.
Test question 2

The use of a prism to create a spectrum of light emitted from a galaxy allows one to:
A. Know the contents of a galaxy
B. Know the motion of a galaxy
C. Know the distance of a galaxy
D. All the above
E. A and B only
Test question 3

Which has the shortest wavelength?

A Infrared light
B Visible light
C ultraviolet Light
D Microwaves
E X rays
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C
B
D
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D
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D
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C
Full transcript