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Our Solar System
Our Solar System
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1
Where in this diagram of the Milky Way galaxy is our solar system most likely located?
D
B
C
A
2
The solar system contains several planets with crusts and mantles composed of silicate rocks
within the asteroid belt only.
between the sun and the asteroid belt, in the belt & beyond
between the sun and the asteroid belt only.
beyond the asteroid belt only.
3
Where in the solar system is the Oort cloud located?
between the sun and A
between C and D
between A and B
beyond D
4
One revolution of our solar system around the center of the MilkyWay galaxy takes approximately
one year
13.7 billion years
250 million years
4.56 billion years
5
Why does a meteor glow?
It burns up as it enters Earth's atmosphere
it melts as it orbits the sun, releasing a tail of H20 vapor
it reacts with oxygen in Earth's atmosphere & breaks apart
It reflects sunlight as it orbits the sun
6
A meteoroid that reaches Earth's surface is called
an iron meteroid
a stony meteoroid
a meteor
a meteorite
7
According to the International Astronomical Union, why is Pluto no longer considered a planet
It's not massive enough to clear smaller bodies around it
It's too massive to assume a nearly rounded shape.
Its mean distance from the Sun is greater than 35 AUs.
It does not follow an elliptical orbit around the Sun.
8
A scientist studying minor bodies in the solar system would likely learn
the processes that formed the planets
the composition of the early solar system
the composition of early forms of life
the processes that formed the galaxy
9
According to the most commonly accepted hypothesis, approximately how old is our solar system?
5 million years
250 million years
5 billion years
13.7 billion years
10
Which answer best explains why a comet has a tail?
solar winds carry the heated dust and gas
its high velocity shakes loose a stream of gas and dust
comets are categorized by nature of their tails
When it is close to the sun, it reflects the sun's light
11
What phenomenon do scientists typically use to detect extrasolar planets (exoplanets)?
the presence of antimatter
the appearance of supernovas
the Doppler shift of stars
the presence of black holes
12
When looking for life on exoplanets, scientists should look for exoplanets that
have only one moon.
are primarily terrestrial and have soil.
receive enough energy to allow water to exist in liquid form
orbit stars in the Milky Way galaxy.
13
The most widely accepted explanation for the origin of Earth's moon is called
the giant impact hypothesis
the big bang theory
the fission theory
the nebular hypothesis
14
Why is a meteorite impact unlikely to trigger a mass extinction?
meteorite impacts are common, but burn up in our atmosphere
it is likely that a meteorite will trigger a mass extinction
meteorite impacts are extremely rare
meteorites cannot impact the Earth
15
Earth's moon formed from
a collision between Earth and a Mars-sized object.
the sun's core ejecting it from it's rapid rotation.
the fission theory.
a large asteroid that was captured by Earth's gravity.
16
How large is the sun relative to the Earth?
The sun has more than one-billion times the volume of Earth
The sun has more than <br>1000 times the volume of Earth
The sun has more than 1 million times the volume of Earth
They are nearly the same size.
17
Planets form when the matter in an accretionary disc begins to coalesce. The accretionary disc
surrounds a star
surrounds another planet
surrounds a black hole
surrounds a supernova
18
Why does the asteroid belt contain possibly millions of asteroids?
Jupiter's powerful gravity attracts more minor bodies
the solar system began in the asteroid belt
the asteroid belt is the edge of the solar system
the asteroids collide repeatedly -forming smaller asteroids
19
Where in the solar system are the most asteroids located?
between A and B
beyond D
between C and D
between B and C
20
According to the most commonly accepted hypothesis, our solar system formed from a
crab nebula
solar nebula
planetary nebula
galactic nebular
21
Which of the following regions in the solar system contains trans-Neptunian objects?
neither the Kuiper belt nor the Oort cloud
both the Kuiper belt and the Oort cloud
Kuiper belt
Oort cloud
22
Which is the most widely accepted explanation for the origin of our solar system?
the steady state theory
the nebular hypothesis
the big bang theory
the giant impact theory
23
What is a comet?
any minor body that orbits the sun past the orbit ofNeptune
an irregular shaped piece of debris
the trail of light seen from Earth as a meteoroid burns up
a small body of ice, rock, and dust that orbits the sun
24
The most commonly accepted hypothesis describing the origin of our solar system is called the
Doppler hypothesis
stellar hypothesis
nebular hypothesis
steady state hypothesis
25
Our solar system is located
the center of the universe
at the center of the Milky Way galaxy
in one of the outer spiral arms of the Milky Way galaxy
out in the Milky Way galaxy, the center of the universe
26
Which statement does NOT correctly identify a planet in the solar system?
Neptune is an outer gas giant.
Mars is an outer terrestrial planet.
Jupiter is an outer gas giant.
Mercury is an inner terrestrial planet.
27
Where is the asteroid belt located?
between Mars and Jupiter
between Jupiter and Saturn
between the sun and Mercury
beyond Neptune
28
The solar system's habitable zone is the location where temperature ranges allow
a planet's atmosphere to maintain a water balance
water to exist in liquid form
multicellular lifeforms to evolve from singlecell life forms
hydrogen & oxygen to form water molecules
29
Which of the following is generally considered to be a minor body in the solar system?
all answers
comet
dwarf planet
moon
30
Where is the Kuiper belt located?
between A and B
between B and C
between the sun and A
beyond C
31
In which group of stars is our solar system located?
the Andromeda galaxy
the Milky Way galaxy
a solar nebula
a planetary nebula
32
Which best classifies the planets of our solar system based on their physical characteristics?
blue and red planets
dead and living planets
gas giants and terrestrial planets
fluid and solid planets
33
How many Earth's would fit inside the Sun?
1,000,000
1,000
10
100
