Pale Blue Dot: A Vision of the Human Future in Space Test | Mid-Book Test - Easy

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This test consists of 15 multiple choice questions and 5 short answer questions.

Multiple Choice Questions

1. Which of the following is NOT one of the ways that Sagan says life seems to be?
(a) Absurd.
(b) Meaningless.
(c) Intentional.
(d) Insignificant.

2. William Herschel, the discoverer of Uranus, had what unusual profession?
(a) Musician.
(b) Actor.
(c) Magician.
(d) Poet.

3. What innovation was crucial in discovering Titan?
(a) The chemical rocket engine.
(b) Newton's laws of motion.
(c) The telescope.
(d) The theory of general relativity.

4. Conditions of what type were extremely important in the creation of early life on Earth?
(a) Atmospheric.
(b) Aquatic.
(c) Geological.
(d) Littoral.

5. What strange motion do all of the stars in the sky exhibit?
(a) They tend to move towards each other.
(b) They change directions randomly.
(c) They appear to drift towards the Earth.
(d) They move in identical tiny ellipses.

6. At the time of the writing of this book, what is the farthest planet that humans had reached through the use of exploratory probes?
(a) Saturn.
(b) Pluto.
(c) Neptune.
(d) Uranus.

7. What does Neptune posses at its core that Uranus apparently lacks?
(a) Silicon.
(b) A solid surface.
(c) Iron.
(d) A heat source.

8. When probes enter the atmospheres of other planets, what color do they often see the sky to be?
(a) Yellow.
(b) Blue.
(c) Red.
(d) Black.

9. What role does Sagan suggest that religion has played in the development of science?
(a) Religiously-minded individuals often become scientists.
(b) Religion informs and guides scientific development.
(c) Science progressed in spite of religion.
(d) Religion has aided science in significant ways.

10. Titan orbits what planet?
(a) Neptune.
(b) Uranus.
(c) Saturn.
(d) Jupiter.

11. What planet represents the farthest distance from Earth that the Voyager craft were intended to function at?
(a) Uranus.
(b) Saturn
(c) Jupiter.
(d) Mars.

12. Which of the following is a major point opponents of space exploration raise?
(a) Space exploration exists for national prestige only.
(b) No good has ever come of space exploration.
(c) The problems on Earth should be solved first.
(d) There is nothing of value anywhere else in the solar system.

13. What did ancient people notice about planets that set them apart from the stars?
(a) They had unique colors.
(b) They grew closer from time to time.
(c) They were much larger.
(d) They had complex motions and were not fixed.

14. Where does Sagan think that life will most likely be eventually found?
(a) Earth-like planets around other stars.
(b) Deep space.
(c) Mars.
(d) A moon in the solar system.

15. The records on the Voyager craft are most like what type of information storage method?
(a) Braille.
(b) Magnetic data storage.
(c) A telegraph code.
(d) A phonograph.

Short Answer Questions

1. What did Galileo demonstrate?

2. What is notable about pictures taken of the Earth from the moon?

3. What punishment did Galileo suffer as a result of his works?

4. What type of waves could be analyzed to demonstrate that there is intelligent life on Earth?

5. What visual resolution would be required to determine the existence of intelligent life on Earth?

(see the answer keys)

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