|Name: _________________________||Period: ___________________|
This test consists of 15 multiple choice questions and 5 short answer questions.
Multiple Choice Questions
1. How does Sagan say that science relates to the existence of a divine being?
(a) Science disproves that divine beings can interact with the universe.
(b) Science does not require such a being.
(c) Science explicitly denies such a being can exist.
(d) Science allows for divine beings and miraculous events.
2. Which of the following is one of the "great demotions" that Sagan cites?
(a) The Earth is 6 billion years old.
(b) There are planets orbiting other stars.
(c) There may have been life on Mars.
(d) Light and magnetism are the same thing.
3. What does Sagan claim is the key element of humanity's future?
(a) Deep space travel.
(b) Faster than light travel.
(d) Distant worlds.
4. What visual resolution would be required to determine the existence of intelligent life on Earth?
(a) 100 meters.
(b) 10 cm.
(c) 1,000 meters.
(d) 1 meter.
5. What form do the materials that planets emerge from take before they coalesce into proto-planets?
(a) A sphere.
(b) A disc.
(c) A star.
(d) A cloud.
6. What does Sagan lament about the study of Titan?
(a) We still know very little about it.
(b) There are no probes headed for it.
(c) There is no interest in studying it.
(d) It is usually impossible to observe.
7. Earth will most likely lose contact with the Voyager probes when what happens?
(a) They reach the Kuiper belt.
(b) Their solar cells die.
(c) They pass the troposphere.
(d) Their radio transmitters die.
8. What is the major difference between space exploration and human exploration in the past?
(a) It takes months or years to get to the destination.
(b) Humans cannot travel to the places they explore.
(c) It is much less costly, in relative terms.
(d) There is much more uncertainty in space.
9. Which of the following is NOT one of the ways that early planets may have been made incapable of bearing life?
(a) Being thrown into outer space.
(b) Being heavily bombarded by meteors.
(c) Falling into the sun.
(d) Being pushed into a distant orbit.
10. What is notable about pictures taken of the Earth from the moon?
(a) No landmasses can be seen.
(b) The Earth appears completely dark.
(c) There is no visible sign of mankind.
(d) The Earth is always in a half-eclipse.
11. What innovation was crucial in discovering Titan?
(a) The theory of general relativity.
(b) The chemical rocket engine.
(c) Newton's laws of motion.
(d) The telescope.
12. As of 1990, how many moons did the Voyager craft explore?
13. What is notable about the Sun's light in Sagan's distant picture of the Earth?
(a) It is extremely dim.
(b) It appears to bathe the Earth in light.
(c) It creates a halo around the Earth.
(d) It appears as many distinct shafts of light.
14. Sagan expects both Voyager spacecrafts to continue to broadcast data through what year?
15. What is Neptune's largest moon?
Short Answer Questions
1. In what way is Titan's cold atmosphere an advantage for the formation of life?
2. The records on the Voyager craft are most like what type of information storage method?
3. Titan orbits what planet?
4. Sagan says that which of the following is the most immediately obvious thing about the Earth?
5. What is the most important thing that would immediately be apparent to any alien intelligence that found the Voyager probes?
This section contains 584 words
(approx. 2 pages at 300 words per page)