Test 2, Astronomy 1010,
Name _______________________________________Section _________________
1. 8O17 and 8O16 are examples of a. isotopes b. ions c. elements d. balloons
2. What is the light-gathering power of the 10 meter Keck reflector relative to the 2 meter tele- scope that TSU runs? a. 2 b. 5 c. 25 d. 100 e. 8
3. What is the wavelength of electromagnetic radiation whose frequency is 106 cycles per second (106 HZ or 1000 kHz, the frequency of ordinary AM radio)? a. 300 meters b. 3 mm c. 30 meters d. 3 meters e. 3 cm
4. Why is a sunflower yellow? a. It emits yellow light b. It absorbs yellow light c. It emits infrared light d. It absorbs infrared light e. It reflects yellow light
5. A first quarter moon is a. is more than half illuminated and getting more of it surface illuminated from night to night b. is more than half illuminated and getting less of it surface illuminated from night to night c. is less than half illuminated and getting more of it surface illuminated from night to night d. is less than half illuminated and getting less of it surface illuminated from night to night e. is half illuminated
6. Compare reflecting telescopes and refracting telescopes. a. a reflecting telescope uses a lens to collect light and has chromatic aberration b. a refracting telescope uses a lens to collect light and has chromatic aberration. c. a reflecting telescope uses a mirror to collect light, and is only supported at the edges. d. a refracting telescope uses a mirror to collect light, and is only supported at the edges. e. none of the above.
7. What part of the electromagnetic spectrum is between visible light and x-rays? a. gamma rays b. infrared c. radio d. ultraviolet e. microwaves
8. 8O17 has a. 17 protons and 8 neutrons b. 8 protons and 17 neutrons c. 8 protons and 9 neutrons d. 9 protons and 8 neutrons e. 8 protons and 17 electrons
9. In terms of wavelengths, gamma rays are a. the shortest wavelength electromagnetic wave b. intermediate between X rays and ultraviolet waves c. the longest wavelength electromagnetic waves d. intermediate between radio and infrared waves e. intermediate between visible and ultraviolet
10. The Earth and the Moon are held together by the force of gravity, according to Newton’s Third Law of Motion, a. The force felt by the moon is a little grater than the force felt by the Earth. b. The force felt by the Moon is much greater than the force felt b the Earth c. The force felt by the Moon is a little less than the force felt by the Earth d. The force felt by the Moon is much less than the force felt by the Earth. e. The force felt by the Moon is equal to the force felt by the Earth.
11. When Earth is in between the Sun and the Moon, the Moon is a. up all day. b. up all night. c. up half the day, then half the night. d. up half the night, then half the day.
12. A refracting telescope is the type which uses as its main optical element a. a lens b. a mirror c. a prism of glass d. a combination of many small plane mirrors e. a parabolic metal dish
13. Purple light has higher frequency than orange light. Thus an orange light photon has a. higher energy and shorter wavelength than purple light b. higher energy and longer wavelength than purple light c. lower energy and shorter wavelength than purple light d. lower energy and longer wavelength than purple light e. the same energy but shorter wavelength than purple light
14. A lunar eclipse will occur (a) at every full Moon. (b) during every new Moon. (c) at full Moon only when the Moon is on the ecliptic. (d) at new Moon only when the Moon is on the ecliptic.
15. You are more likely to see a __________ eclipse in your lifetime, because they are (a) solar; more common than lunar eclipses. (b) solar; seen over a greater area of Earths surface than lunar eclipses. (c) lunar; more common than solar eclipses. (d) lunar; seen over a greater area of Earths surface than solar eclipses.
16. According to Newtons Second Law of motion, for a given constant force a. acceleration is independent of mass b. speed decreases for heavy things c. heavy objects have a higher value of acceleration than light objects. d. heavy object and light objects move at the same speed e. heavy objects have a lower value of acceleration than light objects.
17. Red light has a wavelength of about 700 nm and blue light has a wavelength of about 450 nm. a. Red light has a higher frequency and a red light photon has a higher energy than blue light. b. Red light has a lower frequency and a red light photon has a higher energy than blue light. c. Red light has a higher frequency and a red light photon has a lower energy than blue light. d. Red light has a lower frequency and a red light photon has a lower energy than blue light. e. Red light photons and blue light photons have the same amount of energy
18. We put telescopes in space because a. ultraviolet light is stopped by the Earths atmosphere b. x-rays are stopped by the Earths atmosphere c. the atmosphere spreads out the light from an image and we loose details d. all of the above. e. none of the above.
19. How many days does it take to go from a new moon to a first quarter moon. a. about 1 day b. about 2 days c. about 7 days d. about 10 days e. about 14 days
20. When the Moon is in between the Sun and Earth, the Moon is a. new. b. full. c. first quarter. d. last quarter.
21. A reflecting telescope is the type which uses as its main optical element a. a lens b. a mirror c. a prism of glass d. a combination of many small plane mirrors e. a parabolic metal dish
