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Stars, Sun and Solar System Models review Flashcards | StudBud
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Stars, Sun and Solar System Models review
Stars, Sun and Solar System Models review
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review for Topic 2 Lesson 2&4
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1
What is the last stage of a star's lifecycle before it is fully formed?
gravity pulls gas and dust together
nuclear fusion begins
a protostar is formed
a large cloud of gas and dust exists
2
Which part of the sun makes sunspots happen?
photosphere
radiative zone
convection zone
core
3
Who produced a better telescope that helped prove the Heliocentric model of the solar system?
Ptolemy
Galileo
Kepler
Copernicus
4
Who believed in a epicycle heliocentric model of the solar system?
Aristotle
Copernicus
Ptolemy
Kepler
5
What role does gravity play in the sun’s function?
Gravitational forces heat up the plasma at surface
Gravity causes cooled plasma at the sun's surface to sink.
Gravity causes the core of the sun to be very hot.
Gravity causes explosions on the surface of the sun
6
Where does a prominence happen?
from the solar wind
from one sunspot to another
from a solar flare ending
on the photosphere anywhere
7
Who was the first person to believe in the Heliocentric Model?
Copernicus
Galileo
Aristichus
Aristotle
8
What layer of the Sun does fusion happen?
chromosphere
core
corona
convection zone
9
Who discovered the Galileon satellites of Jupiter, the four main moons?
Kepler
Galileo
Ptolemy
Copernicus
10
What are the 3 inner layers of the Sun?
core-radiative zone-convection zone
core-outer core-convection zone
core-radiative zone-sun spot zone
core-photosphere-radiative zone
11
Who came up with the Three laws of planetary motion?
Newton
Copernicus
Kepler
Galileo
12
Which is NOT a property of a star?
shape
temperature
color
luminosity
13
What are the extra orbits called in Ptolemy's solar system model?
epicycles
wheels
bicycles
unicycles
14
What unit is used to measure distance between stars?
galactic units
astronomical units
light years
Sun units
15
Which one is a law of planetary motion?
the distance a planet is from the sun determines its time of orbit
a planets closest orbit to sun is called ampelion
orbits are circular rather than elliptical
the closer the planet is to the sun the longer the orbit
16
What stage of a star comes after protostar?
main sequence
nuclear fusion
nebula
red giant
17
What do you absolutely need for a star to form?
a protostar is formed
gravity pulls gas and dust together
nuclear fusion begins
a large cloud of gas and dust to exist
18
What part of the sun do we see?
corona
photosphere
radiative zone
chromosphere
19
What layer of the sun transmits energy away from the core?
outer core
convection zone
radiative zone
photosphere
20
what brightness is the brightness as seen from Earth?
absolute magnitude
apparent magnitude
luminosity
sky magnitude
21
What is the main difference between Geo and Helio centric solar system models?
its to complicated to know
the stars are fixed in one and different distances in the other
the Earth and Sun were the center of it
orbits went from circles to elliptical
22
I will make a cheat sheet, one piece of paper, front and back.
True
False
23
What is the region around a star before it begins?
protostar
nuclear fusion site
nebula
planetary nebula
24
What are the two end results that can happen after a super nova explosion?
neutron star and a planetary nebula
neutron star and a pulsar
neutron star and a black hole
neutron star and a black dwarf
25
Which is a property of a star?
distance from Earth
age
luminosity
shape
26
What unit would a Astronomer use to measure distance between planets?
parsec
astronomical unit
ES unit
light year
27
The discovery of sunspots proved what about he sun?
The sun is a special star
the sun is starting to dye out
the sun rotates on an axis
the sun is going through a cooling period
28
What is the closest point a planet is to a Star in orbit?
perihelion
absolute magnitude
amphelion
parallax
29
Which best describes how bright a star actually is?
absolute magnitude
luminosity
parallax
apparent magnitude
30
Sudden eruptions of intense energy out of the Sun is?
prominence
solar wind
sunspot ejection
solar flare
31
Ptolemy believed in?
fixed stars
all of these
geocentric model
epicycles
32
Which star lifecycle stage is the same between a low and high mass star?
red giant
planetary nebula
white dwarf
neutron star
33
When a star collapses in on itself and nothing can escape?
Black hole
Black beauty
Black dwarf
Black nebula
34
What is the order of the objects in a Geocentric solar system model?
earth, mercury, venus, sun, moon, mars, jupiter, saturn
earth, mercury, venus moon mars, sun, jupiter, saturn
sun, mercury, venus, earth, moon, mars, jupiter, saturn
earth, moon, mercury, venus, sun, jupiter, saturn
35
what was one of Galileo's main discoveries to prove the Heliocentric model?
sunspots on the sun
stars are at different distances through parallax
moon features "highlands" and "seas"
the 4 main moons of Jupiter
36
What part of a star do we see?
chromosphere
halo zone
photosphere
convection zone
37
What did Galileo discover that truly proved the heliocentric model?
Galilean Moons
Parallax
phases of Venus
Telescope
38
What color star is the hottest?
blue
blue-white
yellow
white
39
Orbits are elliptical (egg) shaped with the sun at a focal point?
Kepler's 1st law
Kepler's 3rd law
none of the above
Kepler's 2nd law
40
Orbits of planets are directly related to distance from the Sun?
Kepler's 3rd law
none of the above
Kepler's 2nd law
Kepler's 1st law
41
What type of star is our Sun?
High Mass
very high mass
medium mass
small mass
42
Why were the moons of Jupiter so important in the Heliocentric model?
proved that other objects can be orbited
They were not important really at all
there were other objects in the solar system
IDK
43
About How long does our Sun have left in its life cycle?
5 million years
10 million years
10 billion years
5 billion years
44
What is the stream of electrically charged particles that is emitted from the sun's corona?
magnetic emission
solar wind
coronal mass ejection
photon energy
45
Huge loops of magnetic energy from one sunspot to another is?
prominence
solar wind
sun arch
solar flare
46
What happens before nuclear fusion in an Nebula?
nuclear fusion begins
a protostar is formed
a large cloud of gas and dust exists
gravity pulls gas and dust together
47
On what layer of the Sun do we measure the surface temperature?
photosphere
convection zone
chromosphere
corona
48
What has to happen in a nebula to make a star?
gravity pulls gas and dust together
a large cloud of gas and dust exists
a protostar is formed
nuclear fusion begins
49
A star that emits a beam of electromagnetic energy is?
proton star
black hole
neutron star
pulsar
50
Which is not used to determine a star's apparent magnitude?
how hot a star is
how big a star is
how dense a star is
how far away a star is
51
Which gives the best description of a stars brightness?
apparent magnitude
parallax
absolute magnitude
doppler effect
