|Name: _________________________||Period: ___________________|
This test consists of 15 multiple choice questions and 5 short answer questions.
Multiple Choice Questions
1. Sagan suggests that throughout history, many have claimed that our species is what?
(c) Essentially good.
2. What means does Sagan suggest that humans use to represent and express their desire to wander?
(d) Stories and symbols.
3. Sagan expects both Voyager spacecrafts to continue to broadcast data through what year?
4. About how long does Sagan suggest that human beings have been "settled down"?
(a) 100,000 years.
(b) 10,000 years.
(c) 1,000 years.
(d) 50,000 years.
5. Which of the following does Sagan NOT cite as evidence for the age of the universe?
(a) Radioactive dating.
(b) Telemetric spectrometry.
(c) Star evolution.
(d) Impact craters.
6. Which of the following is NOT one of the ways that early planets may have been made incapable of bearing life?
(a) Being pushed into a distant orbit.
(b) Being thrown into outer space.
(c) Being heavily bombarded by meteors.
(d) Falling into the sun.
7. When was Neptune discovered?
8. In what century was the geocentric theory conclusively disproved?
(a) The 13th century.
(b) The 21st century.
(c) The 11th century.
(d) The 19th century.
9. What hazard threatened the Voyager craft in Sagan's plan to take a distant picture of Earth?
(a) Cosmic rays.
(b) Space dust.
(d) The Sun's rays.
10. 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.
11. What strange motion do all of the stars in the sky exhibit?
(a) They change directions randomly.
(b) They move in identical tiny ellipses.
(c) They tend to move towards each other.
(d) They appear to drift towards the Earth.
12. What is the major difference between space exploration and human exploration in the past?
(a) There is much more uncertainty in space.
(b) It is much less costly, in relative terms.
(c) It takes months or years to get to the destination.
(d) Humans cannot travel to the places they explore.
13. How old does Sagan state that "fundamentalist monotheists" believe the Earth to be?
(a) 1 million years old.
(b) 300,000 years old.
(c) 6,000 years old.
(d) 10,000 years old.
14. What is notable about pictures taken of the Earth from the moon?
(a) The Earth is always in a half-eclipse.
(b) The Earth appears completely dark.
(c) There is no visible sign of mankind.
(d) No landmasses can be seen.
15. As of 1990, how many planets did the Voyager craft explore?
Short Answer Questions
1. The Voyager probes found large amounts of what element on Titan?
2. Sagan suggests that the image of the "pale blue dot" teaches the need for what?
3. How does Sagan describe his reaction to the difficulties in detecting human life and intelligence on Earth from space?
4. Titan has what distinction among the moons of the planet it orbits?
5. Uranus has an unusual field around it of what type?
This section contains 481 words
(approx. 2 pages at 300 words per page)