Palen Defense for the Win Verified Test Bank - Understanding Our Universe 3e Complete Test Bank by Stacy Palen. DOCX document preview.
Mission 11: Defense for the Win
MULTIPLE CHOICE
1. Which of the following is not a mean motion resonance (Jupiter-to-asteroid) in the asteroid belt?
a. 4:1 d. 2:5
b. 3:1 e. 2:1
c. 7:3
2. What determines an asteroid’s shape? Compare the images of asteroids below, and choose the answer that best fits your observations.
a. All of the asteroids have irregular shapes and are similar in size.
b. All of the asteroids have irregular shapes but come in a range of sizes.
c. Asteroids have a range of sizes, with the smallest being spherical and the larger ones irregular in shape.
d. Asteroids have a range of sizes, with the largest being spherical and the smaller ones irregular in shape.
3. At least 75% of asteroids are primordial C-type. What does this imply about how the asteroid belt was formed?
a. It was formed entirely of the pieces of a shattered planet.
b. It was formed entirely of the pieces of planetesimals that were prevented from getting large enough to differentiate, and thus were never part of a planet.
c. It was formed mostly from pieces of planetesimals that were prevented from getting large enough to differentiate, but it also contains some pieces of objects that were large enough to differentiate and were later shattered.
d. It was formed mostly from pieces of objects that were large enough to differentiate and were later shattered, but it also contains some planetesimals that were prevented from getting large enough to differentiate.
4. In practice, which of the following must be true for the CO2 shields CORI designed to work)? Choose all that apply.
a. The shield gas molecules need to be in the correct lower energy state to absorb the photons produced by the CO2 laser.
b. The cocoon needs to be sufficiently dense and/or thick.
c. The CO2 shield gas must be extremely cold.
d. none of the above
5. The Kepler Space Telescope is responsible for a flood of exoplanet detections, including the three planets in the Kepler-446 system. Approximately how many planetary systems (that is, host stars with multiple planets) has Kepler discovered?
a. 500 d. 2,600
b. 1,100 e. 53,000
c. 1,500
1. What is the basic principle behind the CO2 shields CORI wants us to construct in this mission?
2. If Kepler-446 has an asteroid belt, what may have happened during the formation of that planetary system that prevented a planet from forming at that radius from the young host star?