Why do the orbits of the planets all lie in the same plane?

The early solar nebula flattened into a disk.

all have rings around their equators.

Every planet in our solar system revolves

counterclockwise as seen from the north

What is true about solar system densities?

The denser planets lie closer to the Sun.

What is the process of accretion?

growth of an object by the accumulation of matter

B) a band of icy bodies found beyond Neptune's orbit.

The Oort Cloud is believed to have been formed from from planetesimals:

That were flung out by encounters with the jovian planets.

How do the densities of the jovian and terrestrial planets compare?

All terrestrials are more dense than any of the jovians.

Declination on a celestial sphere is

measured in degrees & similar to latitude on a globe.

As the solar nebula contracts it:

spins faster due to conservation of angular momentum.

What factor caused different planets to form out of different types of material?

The variation in temperature throughout the solar nebula

Most asteroids are found:

between the orbits of Mars and Jupiter.

Which of the characteristics below describes the terrestrial planets?

high density with few or no moons

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Duplicate of Solar System Formation Quiz

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formation of the solar system

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Questions 30

Answers

1
Why do the orbits of the planets all lie in the same plane?
The early solar nebula flattened into a disk.
The angular momentum was kept to a minimum this way.
The Sun's gravity forced them into these orbits.
This happened purely by chance.
2
The jovian planets:
all spin slower than the Earth.
all have rings around their equators.
are all much more dense than the terrestrials planets.
all lie less than 5 AU from the Sun.
3
In composition, asteroids and meteoroids are most like:
the moons of Jupiter.
terrestrial planets
jovian planets.
Kuiper Belt objects.
4
The separation of material in a newly formed planet or asteroid according to density
accretion
differentiation
graben layering
apparition
5
The first small solid bits in our solar system were formed by
condensation.
gravitation.
accretion.
sublimation.
6
Which of the following is NOT icy in composition?
Kuiper Belt Objects
comet nuclei
asteroids
most Jovian satellites
7
What happens when a solar nebula contracts?
It flattens out.
It heats up
It spins faster.
All of the above.
8
Saturn is the _________ planet from the sun.
5th
8th
6th
7h
9
The Kuiper Belt is found where in the solar system?
among the orbits of the terrestrial planets
beyond the orbit of the Oort Cloud
beyond the orbit of Neptune
between the orbits of Jupiter and Uranus
10
Every planet in our solar system revolves
clockwise as seen from the north
counterclockwise as seen from the north
most go counterclockwise but a few orbit retrograde
most go clockwise but a few orbit retrograde
11
Our solar system is roughly
4.6 billion year old
5.6 billion year old
4.6 trillio year old
14.6 billion year old
12
_________________ is located at 18 hours of Right Ascension.
vernal equinox
winter solstice
summer solstice
autumnal equinox
13
What is true about solar system densities?
The denser planets lie closer to the Sun.
The asteroids all have about the same density.
In differentiated bodies,denser materials near the surfaces
Saturn has the same density as water.
14
____ grew in size by the collision and coalescing of planetesimals.
stars.
planets.
protoplanets.
protostars
15
What is the process of accretion?
growth of an object by the accumulation of matter
the separation of materials in a protoplanet by density,
When the Sun swept away all the excess material in the disc
When the solar nebula becomes heated during its collapse
16
The Kuiper Belt is:
a band of icy bodies found between Mars and Jupiter..
where all comets come from.
the name of the icy bodies found between Jupiter and Saturn.
B) a band of icy bodies found beyond Neptune's orbit.
17
Which below is found in space before entering earth?
meteoroid
meteor
meteorite
kaolinite
18
The Oort Cloud is believed to have been formed from from planetesimals:
That were flung out by encounters with the jovian planets.
debris from an icy planet that broke apart
debris from impacts of planetesimals, asteroids and comets
icy bodies formed between stars and captured into solar syst
19
Which of the following have an icy composition?
the surface of Mars
meteoroids
comets
most asteroids
20
The difference between a meteoroid and an asteroid is the object's:
shape.
composition.
location in the solar system.
size.
21
How do the densities of the jovian and terrestrial planets compare?
The closer a planet lies to the Sun, the less its density
jovians all have high densities, terrestrials
Made from the same solar nebula, they are all similar
All terrestrials are more dense than any of the jovians.
22
All of the silver found on earth
formed in a solar nebula along with stars and planets.
cooked in giant stars.
formed from exploding stars.
formed by accretion.
23
Declination on a celestial sphere is
measured in degrees & similar to latitude on a globe.
measured in hours & similar to longitude on a globe.
measured in degrees & similar to longitude on a globe.
measured in hours & similar to latitude on a globe.
24
the collision and sticking of one particle with another to help form planetesimals.
accretion
creation
sublimation
condensation
25
As the solar nebula contracts it:
loses angular momentum.
As the solar nebula contracts it:
spins faster due to conservation of angular momentum.
flattens out into the ecliptic plane around the Sun's poles.
26
The plane in which almost all planets orbit the Sun is called the
equator of the solar system.
ecliptic.
node.
galactic plane.
27
What factor caused different planets to form out of different types of material?
Thequantity of dust inthe solarnebula was most at the center
The variation in temperature throughout the solar nebula
faster rotating planets lost the lightest elements.
the outer parts contained a greater amount ofheavy elements.
28
The smallest sort of interplanetary matter is called:
a comet.
C) a meteoroid.
interplanetary dust.
an asteroid.
29
Most asteroids are found:
between the orbits of Mars and Jupiter.
between the Earth and Sun.
beyond the orbit of Neptune.
in the orbit of Jupiter, but 60 degrees ahead or behind it
30
Which of the characteristics below describes the terrestrial planets?
large and gaseous
widely spaced through the outer solar system
having rings
high density with few or no moons

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