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FOSS The Cosmos Flashcards | StudBud
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FOSS The Cosmos
FOSS The Cosmos
32 terms
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StudBud Administration
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115 plays
planets, galaxy, solar system
Flashcards
32 cards
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Questions
32
Answers
1
If X and Y are the same age, with same # of impacts, which likely had fluid flowing over it?
X
Y
2
Which planet is closest to the Sun?
Venus
Earth
Mars
Mercury
3
A planet's _________ causes a dip in the observed brightness of a star.
rotation
orbit radius
galaxy
transit
4
Color changes in a star's light, due to a star wobbling, might indicate
the star has no planets
pull of a planet's gravity on the star
5
Which item cannot be found in our solar system?
planet
nebula
moon
star
6
True or false? A human-made spacecraft has reached interstellar space.
False
True
7
True or false? Any object with mass exerts gravity on other objects with mass.
True
False
8
The best way to find out what a star is made of is
send a spacecraft to get a sample of it
categorize it as a dwarf star, red giant, or other.
use a telescope to get a very magnified image of the star
use a spectroscope to analyze the light coming from the star
9
The explosion that can end a large star's life is a(n)
exoplanet
solar system
supernova
dwarf planet
10
The term orbit radius means
the time it takes an object to orbit another object
the distance between an object and what it orbits
the distance between 2 galaxies
the distance between Earth and the Sun
11
A Moon model has a diameter of 3.5 cm. If the true diameter is 3500 km, then the scaling factor
is 1/300,000
is 1/10
is 1/1000
is 1/10,000,000
12
When is water a liquid?
above 100 degrees Celsius
below 0 degrees Celsius
above 32 degrees Celsius but below 212 degrees Celsius
above 0 degrees Celsius but below 100 degrees Celsius
13
Which exoplanet probably has the thickest atmosphere?
the first one
the third one
none of them have an atmosphere
14
The orbital period is closest to
2 days
3 days
1 day
5 days
15
An enormous cloud of gas and dust is called
a nebula
a galaxy
an accretion
a supernova
16
Which is the currently accepted theory of how the moon formed?
Daughter Theory
Capture theory
Impact theory
Big Bang Theory
17
The universe is
all galaxies
the Milky Way
only solar systems
the cosmos
18
The theory of how the universe formed is called the
big bang theory
daughter theory
sister theory
impact theory
19
What caused accretion of the Earth ejecta that formed our Moon?
electric force
gravity
20
An object in motion goes in a straight line unless a force acts on it. Why is an orbit curved?
Orbits don't follow the laws of physics.
Gravity keeps changing the direction of the orbiting object.
21
Have we ever sent people to Mars?
yes
no
22
Accretion means
sticking together
pinching off
igniting
flinging
23
Which of the following is NOT in our solar system?
black holes
satellites
Sun
meteoroids
24
How many planets are likely orbiting this star?
2
3
1
none
25
An astronomical unit (AU) is the distance
between the Moon and Earth
between the Sun and Mercury
that light travels in a year
between the Sun and Earth
26
Where is the asteroid belt located in our solar system?
between Mercury and the Sun
between Mars and Jupiter
out past Neptune
between Earth and Mars
27
The spectral signature, or light signature, of an element can be observed with
an orrery
a stethoscope
a microscope
a spectroscope
28
The colored bands for each element are called
electromagnetic spectrum
emission lines
absorption lines
spectroscope
29
Which is largest?
solar system
galaxy
universe
30
What do scientists believe our solar system started out as?
black hole
a disk
a galaxy
nebula
31
Which is closest to the diameter of the Milky Way?
1 AU
4 ly
1 km
100,000 ly
32
Our Sun and everything within its gravitational reach is called our
Milky Way
universe
galaxy
solar system
