NEW
Font size
WorksheetsAstronomy: Chapter 21-22 Study Guide - Death of High-Mass Stars
Total questions: 27
Worksheet time: 13mins
What element is the endpoint for both fusion and fission?
Iron
Oxygen
Bismuth
Lead
Carbon
What model is used to describe how pulsars work?
Lighthouse Model
Schwarzschild Model
Special relativity
Rothchild Model
When a star is on the main-sequence, it must have greater than which mass, in solar masses, to result in a black hole?
22.5
100
8
12
What type(s) of stellar explosion(s) involve(s) a white dwarf?
Type I supernova
Type II supernova
Nova
Type I and II supernovae
Nova and Type I supernova
What is the star that explodes in a supernova called?
Extractor
Benefactor
Dissident
Activator
Progenitor
If a star’s core remnant (following a supernova) has a mass of between 1.4 and 3 solar masses, what is its likely fate?
Neutron Star
Black hole
Brown Dwarf
White Dwarf
Can our Sun ever create a nova?
No, it is too large.
No, it is too small.
No, it is not part of a binary system.
Yes, it will collide with Proxima Centauri.
Yes, it will do this when it runs out of helium.
What element is the heaviest known stable element?
Iron
Uranium
Bismuth
Einsteinium
What is the maximum speed than can be achieved in the universe?
6.02×1023 sm
6.67×10−11 sm
3×108 sm
9.25×1015 sm
What type of radiation is mainly emitted by pulsars?
X-rays
Gamma
Visible Light
Infared
Radio
Who is responsible for writing the theories of general and special relativity?
Einstein
Newton
deGrasse Tyson
Galileo
What element is frequently used by a star to build heavier elements since it has lower fusion energy?
He
C
Fe
Si
The slowing of time near a black hole is called time __________________.
suspension
dilation
travel
encroachment
According to multiple sources around what year did the crab nebula’s star become a supernova?
1000 B.C.
512 A.D.
1054 A.D.
1066 A.D.
1492 A.D.
Type II supernova nebulae are noted for having much more of what elements than Type I supernova nebulae?
Hydrogen
Iron
Cobalt
Helium
Bismuth
How does the rate of helium “burning” in a star compare to that of carbon?
Helium burns faster.
Carbon burns faster.
They burn at the same rate.
It is impossible to tell.
How small would the radius of Earth have to be, if it kept its mass, in order for any object to not be able to escape its gravity?
1000 km
1 cm
1 μm
1 km
The area around a black hole that no object can enter without being trapped forever is the ____________.
Parallax point
Lagrangian Point
Roche lobe
Event horizon
Singularity
What happens to light as it moves away from a black hole?
Its wavelength is increased
Its velocity is increased
Its velocity is decreased
Its wavelength is decreased.
What is the ultimate fate of a protostar with an initial mass of 0.08 solar masses?
Neutron Star
Black hole
Brown Dwarf
White Dwarf
What is meant by the term half-life?
The time when a star has “burned” half of its hydrogen
How long it takes half of an unstable isotope to decay into more stable isotopes.
The time that is half of a star's lifespan
How long it takes for half of a star’s helium to be converted into carbon.
How many stable elements can be found on Earth?
55
118
92
42
81
What was recently discovered to be "hairy?"
Black Hole
White Dwarf
Neutron Star
X-ray burster
What element signals the end of nucleosynthesis and the death of a star?
Helium
Iron
Oxygen
Bismuth
Carbon
When does the r-process of element formation take place?
During star formation
It occurs during a stars whole life.
During a supernova.
During the main-sequence phase
Towards the end of a high-mass star.
What does the “s” in the s-process of neutron capture stand for?
special
supernova
synthesis
slow
If a core remnant has a mass of 3.5 solar masses after its star went supernova, what has it become?
Neutron Star
Black hole
Pulsar
White Dwarf
