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

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

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

4. Sagan compares the human need for religion to what?
(a) An injured person's need for aid.
(b) An infant's need for a parent.
(c) A blind person's need for a cane.
(d) A man's need for water.

5. How does Sagan characterize NASA?
(a) As part of the military-industrial complex.
(b) As an aging bureaucracy.
(c) As a faceless and dispassionate monolith.
(d) As a ship without a tiller or rudder.

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

7. What is unusual about Uranus's orientation?
(a) It shifts from time to time.
(b) It is laid on its side.
(c) It is the only planet that lies perfectly in the ecliptic.
(d) It wobbles constantly.

8. Sagan suggests that the image of the "pale blue dot" teaches the need for what?
(a) Science education.
(b) Space exploration.
(c) Peace.
(d) Kindness.

9. 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 disproves that divine beings can interact with the universe.
(d) Science explicitly denies such a being can exist.

10. What scientist is credited with making the first discoveries that caused problems for the geocentric theory?
(a) Galileo.
(b) Kelper.
(c) Copernicus.
(d) Ptolemy.

11. According to Sagan, when viewed from space, how apparent would the existence of life on Earth be?
(a) Difficult to discern.
(b) Impossible to discern.
(c) Ambiguous.
(d) Obvious.

12. What visual resolution would be required to determine the existence of intelligent life on Earth?
(a) 1 meter.
(b) 100 meters.
(c) 10 cm.
(d) 1,000 meters.

13. At the time this book was written, how many planets were known to exist around other stars?
(a) None.
(b) Ten.
(c) About fifty.
(d) About twenty.

14. Einstein's work undermined what concept?
(a) That light is the fastest thing in the universe.
(b) That our frame of motion is stationary.
(c) That humans can travel to distant stars.
(d) That the Sun is unique.

15. About how long does Sagan suggest that human beings have been "settled down"?
(a) 50,000 years.
(b) 10,000 years.
(c) 100,000 years.
(d) 1,000 years.

Short Answer Questions

1. What does Sagan say that philosophy and religion should provide?

2. Titan orbits what planet?

3. Uranus has an unusual field around it of what type?

4. What visual resolution would be required to determine that humans are related to the intelligence on Earth?

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

(see the answer keys)

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