Quiz Review

-Inventory of Solar System: sun, planets, asteroids, Kuiper Belt, Oort cloud, moons, meteors. What are they?

-Relative distances of planets from the Sun

-Relative masses of objects in the Solar System (i.e. which is heavier, and by about how much?)

-Ratios, proportions and units (examples: Questions 2 and 5 on Assignment 1)

-What fills most of the space in the Solar System?

-Star formation: steps from molecular cloud to protostellar disk

-Why disks form

-Evidence that planets grew in a disk

-Connection between protostars and planet formation

-Age of Solar System, Sun, Earth

-Equation relating half-life, initial mass of radioactive element and current mass of radioactive element

-How to use the radioactivity equation to measure the age of a rock

-Who contributed to measuring the age of the Solar System and how

-Energy sources in the Sun: fusion vs. gravitational contraction

-Passing star and nebular hypotheses

-Planet formation process from dust to Jupiter

-Definitions: planetesimal, runaway gas growth, ice line

-Condensation sequence, why ice is important

-Distribution of solids in the solar nebula

-Why the planets grew to the sizes they are today

-Why there is no planet in the asteroid belt

-Formation of Oort cloud and scattering of Neptune to a wide orbit

-Difference between Earth's atmosphere and atmospheres of giant planets

-Late Heavy Bombardment

-Why the core accretion theory prevailed over gravitational instability for the Solar System