1 / 43

LECTURE 9, SEPTEMBER 23, 2010

LECTURE 9, SEPTEMBER 23, 2010. ASTR 101, SECTION 3 INSTRUCTOR, JACK BRANDT jcbrandt@unm.edu. Question 6. a) the Sun’s gravity b) Earth’s magnetic field c) Earth’s tidal force d) the solar wind e) the Moon’s magnetic field.

buffy
Télécharger la présentation

LECTURE 9, SEPTEMBER 23, 2010

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. LECTURE 9, SEPTEMBER 23, 2010 ASTR 101, SECTION 3 INSTRUCTOR, JACK BRANDT jcbrandt@unm.edu

  2. Question 6 a) the Sun’s gravity b) Earth’s magnetic field c) Earth’s tidal force d) the solar wind e) the Moon’s magnetic field What force riveted the Moon’s near side to constantly face Earth?

  3. Question 6 a) the Sun’s gravity b) Earth’s magnetic field c) Earth’s tidal force d) the solar wind e) the Moon’s magnetic field What force rivets the Moon’s near side to constantly face Earth? Just as the Moon creates tides on Earth with its gravitational force, the Earth affects the Moon, too. Because of Earth’s tidal force, the Moon spins once a month.

  4. Question 2 The principal greenhouse gases in our present atmosphere are a) hydrogen and helium. b) oxygen and nitrogen. c) water vapor and carbon dioxide. d) methane and ammonia. e) sulfuric acid vapor and CO2.

  5. Question 2 The principal greenhouse gases in our present atmosphere are a) hydrogen and helium. b) oxygen and nitrogen. c) water vapor and carbon dioxide. d) methane and ammonia. e) sulfuric acid vapor and CO2. A greenhouse gas lets shorter- wavelength light pass through, but absorbs longer-wavelength light.

  6. Question 8 A planetary atmosphere with ozone could protect surface dwellers from a) ultraviolet radiation. b) charged particles in the solar wind. c) meteor impacts. d) optical radiation. e) radar waves.

  7. Ozone in the stratosphere (about 30-50 km high) absorbs UV light, and heats the upper atmosphere. Question 8 A planetary atmosphere with ozone could protect surface dwellers from a) ultraviolet radiation. b) charged particles in the solar wind. c) meteor impacts. d) optical radiation. e) radar waves.

  8. Question 7 a) uniformly all over the Moon. b) mostly on the side facing Earth. c) mostly on the far side of the Moon. d) only in the dark areas, out of sunlight. e) in the highlands, among mountains. Lunar maria are found

  9. Question 7 a) uniformly all over the Moon. b) mostly on the side facing Earth. c) mostly on the far side of the Moon. d) only in the dark areas, out of sunlight. e) in the highlands, among mountains. Lunar maria are found Because the Moon keeps its near side always facing Earth, that side has a thinner crust, and is also less cratered.

  10. Question 4 a) ozone layer. b) exosphere. c) Van Allen radiation belts. d) corona. e) aurora borealis and australis. The region around Earth where the magnetic field traps charged particles is the

  11. Question 4 a) ozone layer. b) exosphere. c) Van Allen radiation belts. d) corona. e) aurora borealis and australis. The region around Earth where the magnetic field traps charged particles is the The Earth’s magnetosphere influences the charged particles of the solar wind.Some particles are channeled toward the poles, creating the aurora.

  12. ASTR 101-2, SPRING 2006

  13. Question 10 a) The fission theory b) The giant impact theory c) The capture theory d) The co-formation theory e) The fusion theory Today, which of these theories best explains the Moon’s origin?

  14. Question 10 a) The fission theory b) The giant impact theory c) The capture theory d) The co-formation theory e) The fusion theory Today, which of these theories best explains the Moon’s origin? The giant impact theory seems to explain why the Moon is similar to Earth’s mantle, and why it doesn’t have a dense core.

More Related