1. Universe Tenth Edition Chapter 1 Astronomy and the Universe Roger Freedman Robert Geller William Kaufmann III Clicker Questions

2. Which of the following would cause a scientific theory to be rejected? A.It does not agree with previous theories. B.It does not correctly predict experimental observations. C.Most scientists consider the theory to be wrong. D.The technology has not yet been developed to make the observations that would test the theory. E.It is not supported by religious beliefs. Q1.1

3. Which of the following would cause a scientific theory to be rejected? A.It does not agree with previous theories. B.It does not correctly predict experimental observations. C.Most scientists consider the theory to be wrong. D.The technology has not yet been developed to make the observations that would test the theory. E.It is not supported by religious beliefs. A1.1

4. Newtonian mechanics, which describes the motion of objects when forces are exerted on them, was accepted as a scientific theory that describes nature approximately 400 years ago. It was accepted because it A.was proposed by someone we now know to be a genius. B.was derived from fundamental mathematical principles. C.was handed down to us by the Greeks. D.predicted how objects move under the action of a force. E.was supported by the religious authorities. Q1.2

5. Newtonian mechanics, which describes the motion of objects when forces are exerted on them, was accepted as a scientific theory that describes nature approximately 400 years ago. It was accepted because it A.was proposed by someone we now know to be a genius. B.was derived from fundamental mathematical principles. C.was handed down to us by the Greeks. D.predicted how objects move under the action of a force. E.was supported by the religious authorities. A1.2

6. Which planet(s) in our solar system has (have) been visited by spacecraft? A.Venus and Mars B.All of the terrestrial planets C.All D.Mercury, Venus, Neptune, and Mars E.Only Mars Q1.3

7. Which planet(s) in our solar system has (have) been visited by spacecraft? A.Venus and Mars B.All of the terrestrial planets C.All D.Mercury, Venus, Neptune, and Mars E.Only Mars A1.3

8. The separation between the two pointer stars of the Big Dipper is 5 degrees. What is this separation in arcminutes? A.50 B.60 C.300 D.500 E.18,000 Q1.4

9. The separation between the two pointer stars of the Big Dipper is 5 degrees. What is this separation in arcminutes? A.50 B.60 C.300 D.500 E.18,000 A1.4

10. What lengths are most conveniently measured in astronomical units (AU)? A.Distances on the Earth B.Distances within the solar system C.Distances between stars in our Galaxy D.Distances between galaxies E.Only the largest distances in the universe Q1.5

11. What lengths are most conveniently measured in astronomical units (AU)? A.Distances on the Earth B.Distances within the solar system C.Distances between stars in our Galaxy D.Distances between galaxies E.Only the largest distances in the universe A1.5

12. What lengths are most conveniently measured in units of nanometers (10 −9 m)? A.Distances between the planets B.Distances between cities on Earth C.Dimensions of the human body D.Wavelengths of visible light E.Diameter of an atom Q1.6

13. What lengths are most conveniently measured in units of nanometers (10 −9 m)? A.Distances between the planets B.Distances between cities on Earth C.Dimensions of the human body D.Wavelengths of visible light E.Diameter of an atom A1.6

14. What lengths are most conveniently measured in units of centimeters (10 −2 m)? A.Distances between the planets B.Distances between cities on Earth C.Dimensions of the human body D.Wavelengths of visible light E.Diameter of an atom Q1.7

15. What lengths are most conveniently measured in units of centimeters (10 −2 m)? A.Distances between the planets B.Distances between cities on Earth C.Dimensions of the human body D.Wavelengths of visible light E.Diameter of an atom A1.7

16. What is the approximate diameter of our Galaxy, the Milky Way? A.50 × 10 6 km B.50 astronomical units C.50 light-years D.50 kiloparsecs E.10 million light-years Q1.8

17. What is the approximate diameter of our Galaxy, the Milky Way? A.50 × 10 6 km B.50 astronomical units C.50 light-years D.50 kiloparsecs E.10 million light-years Q1.8

18. The crater Alphonsus on the Moon subtends an angle of 1.15 arcminutes when seen by a person on Earth. Assume the crater is seen on the side of the Moon directly facing us. What is the diameter of the crater? A.1000 km B.129 km C.69 km D.12.9 km E.2.2 km Q1.9

19. The crater Alphonsus on the Moon subtends an angle of 1.15 arcminutes when seen by a person on Earth. Assume the crater is seen on the side of the Moon directly facing us. What is the diameter of the crater? A.1000 km B.129 km C.69 km D.12.9 km E.2.2 km A1.9

20. When Voyager was 60 million kilometers from Jupiter it was possible to see features such as turbulence with angular size as small as 4 arcsec. What would the size of these features be in kilometers? A.0.014 km B.4 km C.240 km D.1200 km E.2400 km Q1.10

21. When Voyager was 60 million kilometers from Jupiter it was possible to see features such as turbulence with angular size as small as 4 arcsec. What would the size of these features be in kilometers? A.0.014 km B.4 km C.240 km D.1200 km E.2400 km A1.10

22. As seen from the location of our college, over a 24-hour day, the Sun rises in the east and sets in the west. From this same location, do the stars follow the same pattern? A.Yes, all stars rise in the east and set in the west. B.No, none of the stars rise in the east and set in the west. C.No, some stars rise in the east and set in the west, but some do not. D.No, some stars rise in the west and set in the east, but some do not. E.No, all stars rise in the west and set in the east. Q1.11

23. As seen from the location of our college, over a 24-hour day, the Sun rises in the east and sets in the west. From this same location, do the stars follow the same pattern? A.Yes, all stars rise in the east and set in the west. B.No, none of the stars rise in the east and set in the west. C.No, some stars rise in the east and set in the west, but some do not. D.No, some stars rise in the west and set in the east, but some do not. E.No, all stars rise in the west and set in the east. A1.11

24. Which of the following statements is true? A.A solar system may contain billions of stars. B.Stars are spread out more or less uniformly throughout the Universe. C.The Milky Way contains a variety of solar systems, stars, and galaxies. D.A galaxy contains billions of stars. E.A solar system contains billions of galaxies. Q1.12

25. Which of the following statements is true? A.A solar system may contain billions of stars. B.Stars are spread out more or less uniformly throughout the Universe. C.The Milky Way contains a variety of solar systems, stars, and galaxies. D.A galaxy contains billions of stars. E.A solar system contains billions of galaxies. Q1.12