Exam 2 Practice Test

Exam 2 Practice Test - MULTIPLE CHOICE QUESTIONS(50 pts...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
MULTIPLE CHOICE QUESTIONS (50 pts.) Choose the BEST answer to each of the following questions using what you have learned in ASTR 101. Indicate your choice on the scantron. (2 pts. each) 1. Certain regions viewed with optical telescopes appear black, like the Horsehead Nebula in Orion. Why? A. There are no stars here. B. Black holes limit our view. C. Dust in this region scatters visible photons out of our line of sight. D. The gas in the region absorbs all of the starlight. E. Some regions in space are completely empty. 2. The continuous spectrum (rainbow) that Mrs. Deming showed in class was produced by passing white light through a prism. The rainbow was produced as A. different colored atoms passed through the prism and were knocked out. B. components of white light (colors) were refracted by different amounts by the prism. C. the energy was diverted and converted into visible light. D. the prism converted ultraviolet photons to visible photons. E. the prism converted infrared photons to visible photons. 3. Uranus and Neptune appear blue-green through a telescope because A. methane in their atmospheres absorbs mainly red photons. B. methane in their atmospheres absorbs mainly blue and green photons. C. their surfaces are covered with water and their clouds are very thin. D. both of them have very small masses compared to the Earth. E. the wind speeds are very high and produce a blue shift.
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern