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

2. What other medium was used to express the desire to wander, according to Sagan, as human civilization developed?
(a) Law.
(b) Ethics.
(c) Religion.
(d) Technology.

3. What scientist is well-known for writing about the differences between species of animals?
(a) Darwin.
(b) Dawkins.
(c) Hawking.
(d) Maxwell.

4. In Chapter 5 Sagan asks the reader to imagine that they are which of the following?
(a) An alien.
(b) An ant.
(c) An ancient person.
(d) A time traveler.

5. One feature that Sagan suggests would be easier to detect that human intelligence would be flatulence from what kind of animal?
(a) Plankton.
(b) Cows.
(c) Sheep.
(d) Krill.

6. What hazard threatened the Voyager craft in Sagan's plan to take a distant picture of Earth?
(a) Cosmic rays.
(b) Micrometeorites.
(c) The Sun's rays.
(d) Space dust.

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

8. Who helped Sagan calculate that Titan should be host to oceans?
(a) Mach.
(b) Kuiper.
(c) Dermott.
(d) Cassini.

9. Many of organic molecules arrived on Earth from what source?
(a) Comets.
(b) Space dust.
(c) Meteors.
(d) Asteroids.

10. Sagan helped to discover that Saturn provides what critical element to Titan?
(a) A magnetosphere.
(b) Energy.
(c) Tidal forces.
(d) Hydrogen.

11. What planet did Sagan spend a great deal of time studying when an important space probe passed near it in 1976?
(a) Mercury.
(b) Saturn.
(c) Venus.
(d) Mars.

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

13. What is the major difference between space exploration and human exploration in the past?
(a) There is much more uncertainty in space.
(b) It is much less costly, in relative terms.
(c) It takes months or years to get to the destination.
(d) Humans cannot travel to the places they explore.

14. How likely does Sagan think it is that the records on Voyager will eventually be found?
(a) It is unlikely.
(b) It is almost certain.
(c) It is reasonably likely.
(d) It is almost impossible.

15. What is notable about the stars in Sagan's distant picture of the Earth?
(a) They appear very close.
(b) They have many different colors.
(c) An immense number are visible.
(d) Very few are visible.

Short Answer Questions

1. How does Sagan say that science relates to the existence of a divine being?

2. Einstein's work undermined what concept?

3. How does Sagan characterize NASA?

4. What are the records on the Voyager craft engraved in?

5. What material that humans have added to the environment would be easily detectable from space?

(see the answer keys)

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