EPSI 9 final study guide
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School
University of California, Los Angeles *
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Course
9
Subject
Astronomy
Date
May 4, 2024
Type
Pages
6
Uploaded by MagistrateScience9152 on coursehero.com
Ep Sci 9 Quizzes -
Quiz 1 -
The main source of heat in our
protoplanetary disk was __________.
- Viscosity in the disk
A parsec is a measure of ______________.
- Parsec
Kepler found that planets travel in elliptical
orbits around the sun and that they sweep
out equal _________ in equal time.
- Area
Looking down on the Earth from the north
pole, the planets of our solar system
generally rotate ____________.
- Counterclockwise
Newton’s law of gravitation is
_______________.
- (GxMxm)/r^2
The Hubble constant tells us that
- The universe is 13 billion years old
Quiz 2 -
204Pb and 206Pb are examples of different
_______________ of the element lead
- Isotopes
Half life is ___________.
- The time it takes for a radioactive nuclide
to decay to half its original abundances.
The first person to establish the age of Earth
and the solar system was ___________.
- Clair Patterson
The solar system is ______ years old.
- 4.6 billion
Quiz 3
The Dawn mission visited _____________.
- The two largest asteroids in the solar
system
The Kuiper belt is ________________.
- Composed of asteroids and comets beyond
the orbit of Neptune
The Oort cloud is _______________.
- A spherical region surrounding the solar
system from which long-period comets
derive
The asteroid Ceres is probably made of
- Carbonaceous chondrite
The first asteroid to be discovered was
______________
- 1 Ceres
The largest of the asteroids in the asteroid
belt is ________________.
- Ceres
Quiz 4
Chondrites are _________.
- Undifferentiated
Highlands on the Moon are made of
________.
- Anorthosite
The Moon formed as a result of _________.
- A massive collision between proto-Earth
and a planetary embryo
The Moon has a __________ spin-orbit
resonance with Earth.
- 1:1
The main asteroid belt lies between the
planets ________.
- Jupiter and Mars
The “Nice” model migration of the giant
planets might explain _______.
- the orbits of Kuiper belt objects
Mid Term Questions:
The main source of heat in our
protoplanetary disk was __________.
-
Viscosity in the disk
A deficit in ________________ in the outer
solar system caused Kuiper to suggest the
existence of a belt of planetesimals beyond
the orbit of Neptune.
-
Surface density
Chondrites are ________________.
-
Undifferentiated
Half life is _________________________.
-
The time it takes for a radioactive
nuclide to decay to half its original
abundances.
Highlands on the Moon are made of
-
Anorthosite
In general, the outer solar system bodies are
icy because
-
the early solar system protoplanetary
disk was colder further away from
the Sun
Kepler found that planets travel in elliptical
orbits around the sun and that they sweep
out equal _________ in equal time.
-
Area
Looking down on the Earth from the north
pole, the planets of our solar system
generally rotate ____________.
-
Counterclockwise
Maria on the Moon are made of
-
Basalt
Most meteorites in our possession today are
___________.
-
Stone
Most of the angular momentum in the solar
system is in _____________.
-
The planets
Newton’s law of gravitation is
_______________.
One astronomical unit is defined as
______________.
-
One earth-sun distance
One of the very best places to find
meteorites is ________________.
-
Antarctica
Our universe is approximately ____ years
old
-
13 billion years
The dawn mission visited
-
The two largest asteroids in the solar
system
The Hubble constant is the slope of the line
on a graph of galactic :
-
Velocity versus distance
The hubble constant tells us that
-
The universe is 13 billion years old
The moon formed as a result of ______
-
Giant impact
The Moon has a __________ spin-orbit
resonance with Earth.
-
1:1
The asteroid Ceres is probably made of
-
Carbonaceous chondrite
The concept of epicycles was put forward by
________________.
-
Ptolemy
The concept of mean-motion resonance
explains
-
Gaps in the asteroid belt
The first asteroid to be discovered was
-
1 ceres .
The first person to establish the age of Earth
and the solar system was
-
Clair patterson
The inner planets are made primarily of
-
Rock
The largest of the asteroids in the asteroid
belt is ________________.
-
Ceres
The main asteroid belt lies between the
planets
-
Jupiter and mars
The primary heat source responsible for
melting planetesimals was _________.
-
26Al radioactive decay
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