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

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

3. What does Sagan say that philosophy and religion should provide?
(a) Comfort.
(b) Kindness.
(c) Truth.
(d) Guidance.

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

5. How fast was Voyager I moving in 1990?
(a) 500 mph.
(b) 10,000 mph.
(c) 1,000 mph.
(d) 40,000 mph.

6. What does Sagan suggest that cavemen were usually looking for when they wandered?
(a) Shelter.
(b) Food.
(c) Mates.
(d) New territory.

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

8. Kuiper discovered that Titan has what chemical vital to the development of life?
(a) Methane.
(b) Argon.
(c) Hexamine.
(d) Cytozine.

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

10. What is the constituent particle of light?
(a) The neutrino.
(b) The neutron.
(c) The electron.
(d) The photon.

11. Sagan expects both Voyager spacecrafts to continue to broadcast data through what year?
(a) 2015.
(b) 2050.
(c) 2030.
(d) 2010.

12. Sagan believes that Titan hosts oceans made of what compound?
(a) Water.
(b) Saturated salts.
(c) Hydrocarbons.
(d) Methane.

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

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

15. 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) Neptune.
(c) Pluto.
(d) Uranus.

Short Answer Questions

1. Sagan helped to discover that Saturn provides what critical element to Titan?

2. Earth will most likely lose contact with the Voyager probes when what happens?

3. Conditions of what type were extremely important in the creation of early life on Earth?

4. What hazard threatened the Voyager craft in Sagan's plan to take a distant picture of Earth?

5. As of 1990, how many moons did the Voyager craft explore?

(see the answer keys)

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