|Name: _________________________||Period: ___________________|
This test consists of 15 multiple choice questions and 5 short answer questions.
Multiple Choice Questions
1. What did ancient people notice about planets that set them apart from the stars?
(a) They grew closer from time to time.
(b) They were much larger.
(c) They had complex motions and were not fixed.
(d) They had unique colors.
2. Who was the first to discover moons around another planet?
3. What is notable about pictures taken of the Earth from the moon?
(a) The Earth appears completely dark.
(b) There is no visible sign of mankind.
(c) No landmasses can be seen.
(d) The Earth is always in a half-eclipse.
4. What major component of the Voyager craft was threatened in Sagan's plan to take a distant picture of Earth?
(a) The solar panel array.
(b) The spectral analyzer.
(c) The vidicon system.
(d) The telemetry antenna.
5. What does Sagan say that philosophy and religion should provide?
6. What scientist is credited with making the first discoveries that caused problems for the geocentric theory?
7. What visual resolution would be required to determine that humans are related to the intelligence on Earth?
(a) 1 meter.
(b) 1 cm.
(c) 10 cm.
(d) 10 meters.
8. What space probe was an important part of Sagan's career, and passed by a major planet in 1976?
9. Besides the Voyager spacecraft, what does Sagan cite as a major triumph by NASA?
(a) The Mars rovers.
(b) The Gemini project.
(c) The moon landings.
(d) The Hubble Telescope.
10. What was the state of the knowledge and belief about life on other planets at the time the book was written?
(a) Most believed life on other planets was impossible.
(b) Scientists expected to find life on most of the planets and moons.
(c) No signs of life were known to exist.
(d) It was believed there was abundant life on Mars.
11. In what century was the geocentric theory conclusively disproved?
(a) The 11th century.
(b) The 19th century.
(c) The 13th century.
(d) The 21st century.
12. At the time of the writing of this book, what is the farthest planet that humans had reached through the use of exploratory probes?
13. Which of the following does Sagan NOT cite as evidence for the age of the universe?
(a) Star evolution.
(b) Impact craters.
(c) Radioactive dating.
(d) Telemetric spectrometry.
14. As of 1990, how many planets did the Voyager craft explore?
15. Which other nation besides the United States led the way in space exploration?
(c) The Soviet Union.
Short Answer Questions
1. What innovation was crucial in discovering Titan?
2. Sagan says that which of the following is the most immediately obvious thing about the Earth?
3. According to Sagan, how do early Earth and Titan compare?
4. What major change have humans made to the environment that would be easily detectable from space?
5. According to Sagan, when viewed from space, how apparent would the existence of life on Earth be?
This section contains 522 words
(approx. 2 pages at 300 words per page)