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

2. As of 1990, how many moons did the Voyager craft explore?
(a) Thirty.
(b) Six.
(c) Ten.
(d) Sixty.

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

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

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

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

7. Uranus has an unusual field around it of what type?
(a) Gamma rays.
(b) Magnetism.
(c) Radiation.
(d) Photons.

8. 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.

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

10. Which of the following is one of the "great demotions" that Sagan cites?
(a) The Earth is 6 billion years old.
(b) Light and magnetism are the same thing.
(c) There are planets orbiting other stars.
(d) There may have been life on Mars.

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

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

13. What fault does Sagan admit that science has?
(a) It fails to uplift human spirits.
(b) It can only develop theories, not laws.
(c) It is always inaccurate.
(d) It is marred by human perception and arrogance.

14. What is notable about pictures taken of the Earth from the moon?
(a) No landmasses can be seen.
(b) The Earth is always in a half-eclipse.
(c) There is no visible sign of mankind.
(d) The Earth appears completely dark.

15. What was the state of the knowledge and belief about life on other planets at the time the book was written?
(a) Most believed life on other planets was impossible.
(b) Scientists expected to find life on most of the planets and moons.
(c) It was believed there was abundant life on Mars.
(d) No signs of life were known to exist.

Short Answer Questions

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

2. What does Neptune posses at its core that Uranus apparently lacks?

3. Sagan suggests that the image of the "pale blue dot" teaches the need for what?

4. How much bigger is Neptune than Earth?

5. What scientist is credited with making the first discoveries that caused problems for the geocentric theory?

(see the answer keys)

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