Why is the composition of the inner planets different from that of the outer planets?

The inner planets formed from heavier elements

Which properties of the planets doesn't tell us something about solar system evolution?

The Sun orbits in the same sense as the planets orbit.

coming together of matter with gravity to form larger bodies

The reason the planetesimals of the asteroid belt did not form a larger object was

There wasnt enough material to form planet at that distance

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Formation of the Solar system

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8th grade Science Tennessee

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Questions 15

Answers

1
What is the most common accepted theory of solar system formation?
The black hole theory
The Theory of Solar System Science
The dust cloud theory
The theory of planetary motion
2
Dust DID NOT create planets
True
False
3
The age of our solar system is approximately
4.6 million years
4.6 billion years
4.6 quadrillion years
4.6 trillion years
4
How is pluto different from the outer planets?
it has gas and is rocky
it is in outer space
it is small and rocky
it has a low temperature
5
Why is the composition of the inner planets different from that of the outer planets?
The outer planets did not form from elements
The inner planets formed from heavier elements
The outer planets formed from heavier elements
The inner planets formed from lighter elements
6
What is the shape of a planets orbit?
Circle
it changes all the time
slightly elliptical
highly elliptical
7
Which of the following planets has the longest orbit?
Mercury
Saturn
Earth
Neptune
8
Which Planet has the shortest orbit?
Venus
Mars
Mercury
Earth
9
Which properties of the planets doesn't tell us something about solar system evolution?
The planets all orbit in about the same plane.
The Sun orbits in the same sense as the planets orbit.
The planets farther from Sun take longer to complete orbits.
The planets’ orbits are all elliptical.
10
What is the name of the area between Mars and Jupiter?
They Milky Way
Kuiper belt
The Snickers Way
The asteroid belt
11
Gas created planets
True
False
12
Nuclear reactions created our sun
True
False
13
Our solar system contains elements heavier than iron.What is the origin of these elements?
The black hole
a red dwarf
A supernova explosion
a white dwarf
14
Accretion is
coming together of matter with gravity to form larger bodies
smaller rocks turning into larger rocks
larger rocks turning in to smaller rocks
Planets exploding
15
The reason the planetesimals of the asteroid belt did not form a larger object was
There was to much material to form a planet
gravitational influence of Jupiter perturb accreted material
The planetesimals had too much angular momentum to accrete
There wasnt enough material to form planet at that distance

Formation of the Solar system Flashcards | StudBud