AnswersEarth Systems AOther Objects in the Solar System

Other Objects in the Solar System — Unit test Answers

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3

Which list correctly orders the outer planets from least to greatest distance from the Sun?

A
Jupiter, Saturn, Uranus, Neptune
B
Saturn, Jupiter, Uranus, Neptune
C
Jupiter, Saturn, Neptune, Uranus
D
Neptune, Uranus, Saturn, Jupiter
4

Which type of star will become a black hole when it dies?

a
a protostar
a
a supergiant
a
a white dwarf
a
a red dwarf
6

About how old is the Sun?

A
1.2 billion years
B
4.6 billion years
C
6.4 billion years
D
8.2 billion years
8

Which characteristic do Mercury and Mars share?

A
many moons
B
rocky surfaces
C
thick atmospheres
D
moderate temperature fluctuations
9

Which is the final event that occurs when a star is forming?

T
The outer layer of the star expands.
G
Gravity pulls gas and dust together.
A
A black hole forms as the core collapses.
N
Nuclear fusion begins under high pressure.
10

What was discovered in 1965 and is believed to be leftover thermal energy from the big bang?

r
red shift
t
the Eagle Nebula
t
the Doppler effect
b
background radiation
11

Lori attended a lecture about the Sun, and the presenter had placed this image on the wall. Which layer of the Sun could this image be referring to?

Question illustration
A
the convection zone, because it shows how energy moves in a convection current
B
the radiation zone, because it shows how energy is transferred through radiation
C
the core, because it shows how the Sun creates energy through the process of nuclear fusion
D
the chromosphere, because it shows how energy is emitted by the atmosphere of the Sun
12

Solar winds have an influence all the way to about 160 AU from the Sun. About how many kilometers is that?

A
24,000,000,000 km
B
48,000,000,000 km
C
240,000,000,000 km
D
480,000,000,000 km

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