What is true of the solar nebular theory?

the planets formed from the same nebular cloud as the Sun

Uranus and Neptune appear blue because

their methane filters our red light

viewed from Earth, the planets move

sometimes with and sometimes opposite of the stars

What explains the existence of Saturn's rings?

material from a moon that broke into pieces

Features of the solar system include

all planets lie in the same plane

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Solar System Review - Semester 1 Unit 2

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Answers

1
What is true of the solar nebular theory?
the planets contain about one tenth the mass of the Sun
the planets were captured into orbit by the Sun's gravity
the planets formed by fusion of Hydrogen in their cores
the planets formed from the same nebular cloud as the Sun
2
Uranus and Neptune appear blue because
they are covered in blue oceans
they are composed of solid water
they are covered in blue algae
their methane filters our red light
3
What is Pluto classified as?
a dwarf planet
a planet
a moon
an asteroid
4
What is a giant cloud of gas and dust?
universe
planet
nebula
galaxy
5
How long does it take the Earth to revolve around the Sun?
365.25 days
364 days
29. 5 days
24 hours
6
Which planet has the longest year?
Uranus
Neptune
Jupiter
Saturn
7
What year will Halley's comet return?
2062
2016
2026
3062
8
viewed from Earth, the planets move
always opposite the direction of the stars
in a circular motion
sometimes with and sometimes opposite of the stars
in the same direction as the stars
9
Small, icy objects that orbit around the Sun are called?
meteorites
asteroids
comets
meteoroids
10
The scientific term for a shooting star is
meteoriod
asteroid
meteorite
comet
11
Why is a day on Mercury equal to 57 Earth days?
the time for one revolution is the same as for one rotation.
Venus has a gravitational pull on it
it rotates very slowly
it revolves very slowly
12
If a planet moves closer to the Sun, what will happen to the length of its orbit?
it will increase
it would stay the same
it will increase, then decrease
it will decrease
13
The asteroid belt is most likely
something that formed when solar system began
a large planet that broke apart
a new planet
a failed planet
14
Evidence for liquid water in Mars past include
all of these
crystals known to precipitate from water
water-eroded canyons
the presence of polar ice
15
The only inner planet with a large natural satellite
Earth
Venus
Mars
Mercury
16
What is the giant Red Spot?
Mars
the outermost ring on Saturn
enormous volcano on Neptune
a giant storm on Jupiter
17
How long does it take Jupiter to revolve around the Sun?
0.5 Earth years
1 Earth year
12 Earth years
100 Earth years
18
What explains the existence of Saturn's rings?
ice flung from the planet
material from a moon that broke into pieces
rocks that have been flung our from the planet
no one knows
19
Features of the solar system include
all of the these
all planets rotate in the same directions
none of the planets orbit the Sun in the same direction
all planets lie in the same plane
20
One astronomical unit is the distance from the Earth to the sun or
150 billion km
150 km
150 million km
150 thousand km
21
If you know a planet's orbital period you can determine its...
age
rotation rate
distance from the sun
composition

Solar System Review - Semester 1 Unit 2 Flashcards | StudBud