WorksheetsThe Oort Cloud & Outer Solar System
Total questions: 22
Worksheet time: 11mins
Name
Class
Date
1.
Comets lose material when they get near ___
a)
planets
b)
other comets
c)
the Sun
d)
the outer solar system
2.
How long ago was our solar system formed?
a)
about 4.5 million years ago
b)
about 9.2 million years ago
c)
about 4.5 billion years ago
d)
about 9.2 billion years ago
3.
Out in the chillier part of the Solar System, water came in the form of ___
a)
liquid water
b)
ice mixed with dust
c)
vapor mixed with dust
d)
water vapor
4.
The discussed model, describing the evolution of the Solar System, was named after ___
a)
the city of Nice, France
b)
Neapolitan ice cream
c)
the city of Rome, Italy
d)
the planet Jupiter
5.
During the formation of the Solar System, which planet had the biggest effect on the iceballs?
a)
Mars
b)
Saturn
c)
Uranus
d)
Neptune
6.
The intense shower of objects that came screaming down from the outer solar system is called ___
a)
the Early Heavy Cataclysm
b)
the Late Heavy Cataclysm
c)
the Early Heavy Bombardment
d)
the Late Heavy Bombardment
7.
The doughnut-shaped region, just past Neptune, where icy objects have stable orbits is called ___
a)
the Gerard Belt
b)
the Scattered Disk
c)
the Kuiper Belt
d)
the Kuiper Disk
8.
The second region of objects, composed of iceballs with highly tilted orbits, is called ___
a)
the scattered disk
b)
the Kuiper disk
c)
the Kuiper Belt
d)
the concentrated ring
9.
The scattered disk extends about ___ times farther out than Neptune.
a)
2
b)
5
c)
25
d)
50
10.
The third region of icy objects, a spherical cloud which starts roughly 300 billion kilometers out, is called ___
a)
the Oort Cloud
b)
the Oort Disk
c)
the Kuiper Cloud
d)
the scattered disk
11.
The Oort Cloud starts about 70 times farther out than Neptune and extends as much as ___
a)
half a light year
b)
a light year
c)
ten light years
d)
70 light years
12.
Comets that originate in the Oort Cloud have long orbits that are close to being ___
a)
circular
b)
elliptical
c)
parabolic
d)
hyperbolic
13.
The Oort Cloud is the origin of ___
a)
short period asteroids
b)
long period asteroids
c)
short period comets
d)
long period comets
14.
The scattered disk is the source of ___
a)
short period asteroids
b)
long period asteroids
c)
short period comets
d)
long period comets
15.
What was the first Kuiper Belt Object to be discovered?
a)
Neptune
b)
Pluto
c)
Halley's Comet
d)
Comet Hale–Bopp
16.
Pluto orbits the Sun on an elliptical, mildly-tilted path, which brings it closer to the Sun than ___
a)
Uranus
b)
Saturn
c)
Jupiter
d)
Neptune
17.
Whenever Pluto is closest to the Sun, Neptune is always ___
a)
near enough to collide
b)
90° away in its orbit
c)
well above the plane of the solar system
d)
180° away in its orbit
18.
Small bodies in the region of the Kuiper Belt and in resonance with Neptune are called ___
a)
Neptunos
b)
Neutrinos
c)
Plutinos
d)
Kuiperos
19.
After discovering Pluto, how long was it until the next Kuiper Belt object was found?
a)
less than 6 months
b)
about two years
c)
about 30 years
d)
more than 60 years
20.
Which Kuiper Belt object is very close to Pluto’s size and is more massive?
a)
Eris
b)
Neptune
c)
Charon
d)
1992 QB1
21.
Which moon of Pluto was discovered in 1978 and has about 1/8th the mass of Pluto itself?
a)
Charon
b)
Styx
c)
Hydra
d)
Kerberos
22.
In relative size, Pluto is ___
a)
about the size of Earth
b)
larger than Earth’s Moon
c)
about the size of Earth’s Moon
d)
smaller than Earth’s Moon
100 %
