Question

1. Relative to horizon stars rise in east and set in west everyday. a) True b) False

2. Relative to horizon the planets rise from west and set in east t every day. a) True b) False

3. During absorption of light electrons move from lower orbits to higher orbits a) True b) False

4. Apparent path of the sun among stars is called zodiac. a) True b) False

5. Galileo is the first astronomer to suggest the sun is at the center of universe. a) True b) False

6. According to Kepler’s second law planets move faster when they are closer to the sun. a) True b) False

7. The objects that exhibit retrograde motion are planets and nearby stars. a) True b) False

8. Babylonians used deferent and epicycles to explain the retrograde motion of planets. a) True b) False

9. Planets closer to the sun take less time to go around the sun once compare to the planets farther away from sun. a) True b) False

10. Refraction telescopes use mirrors as objective. a) True b) False

11. Color of light depends on a) amplitude of the wave b) wavelength of light wave c) medium it travels d) its speed

12. Which of the following did the model of Copernicus and the model of Kepler have in common? a) planets move in elliptical orbits b) planets move around the sun c)the motion of planets are uniform d) both a & b.

13. Circumpolar stars are a) brightest stars b) stars in Zodiac c) stars never set d) none of these

14. Light year is defined as a) distance from earth to sun b) distance to nearest star c) distance that light travels in one year d) distance that earth travels around sun in one year

15. Which of following is not a telescopic discovery of Galileo. a) moons of Jupiter b) mountains of moon c) new planet Pluto d) sunspots

16. Resolution of a telescope depends on its a) length b) diameter c) weight d) location on the earth

17. Who used the telescope to observe the sky first? a) Copernicus b) Aristotle c) Galileo d) Kepler

18. An astronomical unit (a.u) is defined as a) a reference unit of time between stars b) distance that light travels in 1 day c) the average distance between the sun and the earth. d) The average distance between the earth and the moon.

19. Phase of the moon during solar eclipse is a. new moon b. first quarter c. third quarter d. full moon E N S W

20. According to the diagram, what is the approximate time a. 9 AM b. noon c. 3 PM d. 3 AM Sun

21. According to the diagram, what is the phase of the moon? 22. What types of electromagnetic radiation has more energy?

23. What is common to all types of electromagnetic waves? 24. As viewed from the earth, What is the angle from the sun to third quarter moon?

25. Why do we different phases (shapes) of the moon?

Answer 1