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. How much bigger is Neptune than Earth?
(a) Two hundred times.
(b) Forty times.
(c) Four times.
(d) A hundred times.

2. The Anthropic Principle is divided into two theories that are termed what?
(a) Old and new.
(b) Strong and weak.
(c) Greater and lesser.
(d) Orthodox and reformed.

3. What does Neptune's moon have less of compared to Titan?
(a) Potassium.
(b) Ice.
(c) Iron.
(d) Carbon.

4. Earth will most likely lose contact with the Voyager probes when what happens?
(a) Their radio transmitters die.
(b) They pass the troposphere.
(c) They reach the Kuiper belt.
(d) Their solar cells die.

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

6. How does Sagan say that science relates to the existence of a divine being?
(a) Science allows for divine beings and miraculous events.
(b) Science does not require such a being.
(c) Science explicitly denies such a being can exist.
(d) Science disproves that divine beings can interact with the universe.

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

8. What does Sagan say is an easy way to visually identify planets?
(a) Their movements.
(b) Their size.
(c) The color of their atmospheres.
(d) Their brightness.

9. According to Sagan, how do early Earth and Titan compare?
(a) They are similar.
(b) They are only vaguely related.
(c) They are almost exactly the same.
(d) They are totally different.

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

11. What is notable about the Sun's light in Sagan's distant picture of the Earth?
(a) It appears to bathe the Earth in light.
(b) It creates a halo around the Earth.
(c) It is extremely dim.
(d) It appears as many distinct shafts of light.

12. What visual resolution would be required to determine that humans are related to the intelligence on Earth?
(a) 10 cm.
(b) 1 cm.
(c) 10 meters.
(d) 1 meter.

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

14. What form do the materials that planets emerge from take before they coalesce into proto-planets?
(a) A star.
(b) A cloud.
(c) A sphere.
(d) A disc.

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

Short Answer Questions

1. What is Neptune's largest moon?

2. About how long does Sagan suggest that human beings have been "settled down"?

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

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

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

(see the answer keys)

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