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. Sagan suggests that throughout history, many have claimed that our species is what?
(a) Unique.
(b) Essentially good.
(c) Irredeemable.
(d) Worthless.

2. Besides the Voyager spacecraft, what does Sagan cite as a major triumph by NASA?
(a) The Hubble Telescope.
(b) The Gemini project.
(c) The moon landings.
(d) The Mars rovers.

3. What concept does Sagan suggest that the image of the "pale blue dot" mocks?
(a) Human conceit.
(b) Technology.
(c) Individuality.
(d) Human achievement.

4. How old does Sagan state that "fundamentalist monotheists" believe the Earth to be?
(a) 10,000 years old.
(b) 300,000 years old.
(c) 1 million years old.
(d) 6,000 years old.

5. What abstract concept does Sagan specifically say he is optimistic about?
(a) The human capacity for love and discovery.
(b) The human prospect.
(c) Human destiny.
(d) The future.

6. In the analogy Sagan makes in Chapter 5 the reader is asked to imagine they are seeing Earth from what perspective?
(a) For the first time.
(b) Very close up.
(c) From a distorted frame of reference.
(d) From an immense distance.

7. In what way is Titan's cold atmosphere an advantage for the formation of life?
(a) It causes molecules to stay on its surface.
(b) It helps certain compounds form quickly.
(c) It provides shields the moon from solar rays.
(d) It protects its inner core from tidal forces.

8. What does Sagan claim is the key element of humanity's future?
(a) Distant worlds.
(b) Deep space travel.
(c) Faster than light travel.
(d) Terraforming.

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

10. As of the writing of this book, how many moons was Uranus known to have?
(a) Twelve.
(b) Seven.
(c) Five.
(d) Ten.

11. How many planets were known to ancient people?
(a) Six.
(b) Three.
(c) Four.
(d) Five.

12. Which of the following is NOT one of the major unknowns that Sagan says he will address in this book?
(a) How humans can explore space.
(b) Whether or not there is intelligent life on nearby planets.
(c) What humanity's future is.
(d) Why humans should explore space.

13. What does the Geocentric theory state?
(a) The sun moves around the Earth.
(b) The Earth moves in a perfect circle.
(c) The planets and heavens are all fixed.
(d) The Earth is a flat disc.

14. Sagan describes humans as which of the following, with respect to their arrival in the universe?
(a) Extreme latecomers.
(b) Slow movers.
(c) Early adopters.
(d) Middling achievers.

15. Titan has what distinction among the moons of the planet it orbits?
(a) It is the only moon with ice water.
(b) It is the largest moon.
(c) It is the only spherical moon.
(d) It has the widest orbit.

Short Answer Questions

1. The Anthropic Principle is divided into two theories that are termed what?

2. What does Sagan say is an easy way to visually identify planets?

3. At the time this book was written, how many planets were known to exist around other stars?

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

5. What scientist is well-known for writing about the differences between species of animals?

(see the answer keys)

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