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WorksheetsLarge Mass Stars
Total questions: 36
Worksheet time: 21mins
What happens to time at the event horizon?
It slows to half
it stops
it speeds up then slows down
it reverses
Label the parts of the lighthouse model.
Which of the following is not produced when Carbon fuses to heavier elements?
neon
magnesium
helium
sodium
Which of the following occurs when iron is fused in the core of a large mass star?
neutrinos are formed
electrons are absorbed
neutron stars are formed
energy is given off
Which of the following is a Type II supernova?
explosion occurs only to stars in a narrow mass range — 0.5 - 0.75 solar masses
results from the rapid collapse and violent explosion of a massive star
binary systems in which one of the stars is a white dwarf
Red giant in binary system with another red giant
A famous supernova remnant
crab
dumbbell
ring
hourglass
What is the highest element fused in the large mass star?
hydrogen
Iron
oxygen
silicon
Which of the following does NOT occur during Stage 10 for large mass stars?
supernova explosion
fusion stops at iron
star oscillates back and forth on HR diagram
no helium flash
Neutronium is
a made up term in science fiction
the material in a black hole
the material in a neutron star
the material in a white dwarf
Which of the following is NOT a property of a neutron star?
1 - 3 solar masses in core
1 solar mass is 10km in diameter
size of Manhattan
collapse of the core of a sun sized star
Who discovered pulsars?
Madam Curie
Vera Rubin
Liza Mitner
Jocelyn Bell
Which of the following statements is true?
black holes are visible with special telescopes
neutron stars are the size of the earth
black holes are not cosmic vacuum cleaners
neutron stars are made of neutrinos
LGM stand for
large green matter
large ginormous men
land guiding meter
little green men
What is at the center of most galaxies like the Milky way?
Supermassive supernova remnant
supermassive black hole
the Magellanic cluster
multiple black holes in binary systems
The most natural clocks in the universe is a _____________________.
pulsar
nova
supernova
orbit of moon
Novae happen
once
over and over again
only 5 times
only twice
A magnetar is
neutron star with strong x-ray pulses
neutron star - pulses of gamma rays quadrillion times larger than sun
neutron star - electric field quadrillion times larger than sun
neutron star - magnetic field quadrillion times larger than sun
What happens to lengths as they move close to the speed of light?
they contract
they expand
they stretch
nothing
Which of the following is NOT a type of pulsar?
millisecond
x-ray bursters
gamma ray bursters
magnetic bursters
The escape velocity is
speed you reach when you have a parachute
speed you reach when you are skydiving
speed needed to leave a planet or star
speed a planet has around a star
What is it called when the escape velocity equals the speed of light?
a crash course
a black hole
an event horizon
a neutron star
What is the Schwarzschild radius?
radius of the black hole
radius of a neutron star
radius where time slows
radius where light cannot escape
What happens to light coming from you at the event horizon?
It shrinks the light making it shorter
It shrink light and it loses all its energy
It stretches and loses all its energy so it becomes invisible
It stretches and becomes red instead of green
What is spaghettification?
the process of making pasta
tidal forces stretch pasta
neutron stars stretch you until you form spaghetti
tidal forces stretching you until your legs look like a noodle
Which of the following is a Type I supernova?
explosion occurs only to stars in a narrow mass range — 0.5 - 0.75 solar masses
results from the rapid collapse and violent explosion of a massive star
binary systems in which one of the stars is a white dwarf
Red giant in binary system with another red giant
How large is the core of a high mass star that becomes a black hole?
1 solar mass
2 solar masses
2.5 solar masses
3 solar masses
What is the name of the telescope that photographed the black hole?
Event Horizon
Schwarzschild
Kepler
Einstein
Which of the following is an example of a black hole candidate?
Cygnus X1
Crab Pulsar
Vela SNR
SN 1604
Mass does what to space-time?
causes it to fold
warps it
wraps it
it doesn't affect space-time
Pulsars are
black holes
white dwarfs with companion star
neutron stars
supernovae remnants
Which of the following does not occur with a Nova?
explosion
Helium fuses to Carbon
process repeats
an accretion disk forms
Supernovae happen
once
more than 20 times
only twice
5 times and then it explodes
The event horizon is
the surface of a black hole
where the black hole evaporates
the radius where light cannot escape
the area around a black hole where matter accumulates and glows
Hydrogen fuses to (a) . Helium fuses to (b) Carbon can fuse to (c) , (d) , and (e) .
Neon fuses to (a) and (b) . Oxygen fuses to (c) Silicon fuses to (d) .
Supernovae happen because
Iron creates too much energy
neutron degeneracy causes the explosion
iron gives off electrons
carbon absorbs energy
