ASTR 121|47 Midterm 2 Questions Well Answered| Success Guaranteed
8 views 0 purchase
Course
ASTR 121
Institution
ASTR 121
3 key processes from solar nebula to spinning disk - ️️1. heating 2. spinning 3. flattening
4 categories of materials in the solar nebula - ️️1. hydrogen and helium 98% 2. hydrogen compounds 1.4% 3. rock 0.4% 4 metals .2%
4 Major clues that show how solar system was formed - ️️1. Patt...
ASTR 121|47 Midterm 2 Questions Well
Answered| Success Guaranteed
3 key processes from solar nebula to spinning disk - ✔ ✔ 1. heating 2. spinning 3. flattening
4 categories of materials in the solar nebula - ✔ ✔ 1. hydrogen and helium 98% 2. hydrogen
compounds 1.4% 3. rock 0.4% 4 metals .2%
4 Major clues that show how solar system was formed - ✔ ✔ 1. Patterns of motion among large
bodies 2. Two major types of planets 3. asteroids and comets 4. Exceptions to the rules
4 ways in which earth is unique among terrestrial worlds - ✔ ✔ 1. Surface liquid water 2.
Atmospheric oxygen 3. Plate tectonics 4. Climate stability
Basic geology of Venus - ✔ ✔ Volcanism and tectonics
Carbon dioxide cycle - ✔ ✔ The natural action of how carbon is cycled throughout the atmosphere
Consequences of global warming - ✔ ✔ 1.Polar regions warm, causing ice to melt, 2. Oceans warm 3.
Salt content changes 4. Evaporation from oceans will increase leading to more intense storms 5. A rise in
sea level
Conveyer- like action - ✔ ✔ Plate tectonics act like a giant conveyer belt for earths lithosphere,
continually recycling the seafloor and building up the continents
Core- mantle crust structure of terrestrial planets - ✔ ✔ Core- Highest density material consisting of
metals like nickel and iron
Mantle- Rocky, moderate density consisting mostly of minerals that contain silicon, oxygen, etc. that
forms a mantle surrounding the core
Crust- lowest density rock, like granite and basalt, forming a thin crust, representing the world's outer
skin
Describe the planetary properties we can measure with current detection methods - ✔ ✔ 1. orbital
period and distance - current detection methods all tell orbit, which can then prove distance
2. orbital eccentricity - how circular planets orbits are, which shows how close they get to the sun too
3. planetary mass - a more massive planet will cause its star to move at a higher velocity around the
center of mass
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller jackline98. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
