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. Besides the Voyager spacecraft, what does Sagan cite as a major triumph by NASA?
(a) The moon landings.
(b) The Gemini project.
(c) The Mars rovers.
(d) The Hubble Telescope.

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

3. What concept does Sagan suggest that the image of the "pale blue dot" mocks?
(a) Human achievement.
(b) Human conceit.
(c) Individuality.
(d) Technology.

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

5. 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 complex motions and were not fixed.
(c) They were much larger.
(d) They had unique colors.

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

7. Where does Neptune fall in the mission plan for the Voyager probes?
(a) They will return to the inner solar system after passing it.
(b) They will go into decaying orbit around it.
(c) They will pass by it only at an immense distance
(d) It is their final planetary destination.

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

9. 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.

10. What did Galileo demonstrate?
(a) The stars are fixed.
(b) The Earth is not the only planet.
(c) The moon does not orbit the Earth.
(d) The Sun is just a star.

11. Which of the following is a major point opponents of space exploration raise?
(a) The problems on Earth should be solved first.
(b) Space exploration exists for national prestige only.
(c) There is nothing of value anywhere else in the solar system.
(d) No good has ever come of space exploration.

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

13. What space probe was an important part of Sagan's career, and passed by a major planet in 1976?
(a) Viking.
(b) Tesla.
(c) Newton.
(d) Ion.

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

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

Short Answer Questions

1. What strange motion do all of the stars in the sky exhibit?

2. Who was the first to discover moons around another planet?

3. What fault does Sagan admit that science has?

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

5. What does Sagan lament about the study of Titan?

(see the answer keys)

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