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8. Consider two telescopes. Both are shaped like cylinders. For the first telescope: the width across the circular
shaped opening is 1 foot and the length is 4 feet. For the second telescope: the width across the circular shaped
opening is 1/2 foot and the length is 8 feet.
a.) the first telescope has better angular resolution (i.e., a smaller diffraction limit) and so is able to see stars
that are closer together
b.) the second telescope has better angular resolution (i.e., a smaller diffraction limit) and so is able to see stars
that are closer together
c.) both telescopes have the same angular resolution (i.e., the same diffraction limit) and so neither is better or
worse than the other at seeing stars that are close together
9. In the nebular theory of the solar system’s formation, why are all of the most massive planets further from the
Sun than the least massive planets?
a.) because there was more mass of material of all types of atoms in the outer part of the solar system
b.) because there was more hydrogen and helium in the outer part of the solar system, allowing the planets that
formed there to gather hydrogen and helium atmospheres
c.) because the outer part of the solar system was cooler, allowing hydrogen compounds to condense and contribute to the mass of the core of the planet
10. What is the lithosphere of a terrestrial planet?
a.) A layer of relatively rigid rock on the surface of the planet
b.) A layer of hot, molten rock made of the outer part of the core and the inner part of the mantle
c.) The metal in the center of the planet where the planet’s magnetic field is generated
11. Consider 2 terrestrial planets, A and B orbiting a star like the Sun. Planet A is half as far from the star as
planet B and has a radius that is half as big as that of planet B. After 4 1/2 billion years, which is most likely to
have more geologic activity? a.) Planet A b.) Planet B c.) Either could be more geologically active, depending
upon other characteristics of the planet that aren’t described in the problem
12. The Coriolis effect:
a.) affects atmospheric temperature and results from the planet’s rotation
b.) affects global wind patterns and results from the planet’s outgassing
c.) affects atmospheric temperature and results from the planet’s outgassing
d.) affects global wind patterns and results from the planet’s rotation
13. How do terrestrial planets acquire atmospheres?
a.) volcanic eruptions and volcanic outgassing
b.) ejection of particles from the surface when the surface is hit by micrometeorites and solar wind particles
c.) both a and b
d.) none of the above