Astronomy 154 - Elementary Astronomy » Spring 2022 » Quiz 10
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Astronomy 154 - Elementary Astronomy ] course for $25 USD.
Existing Quiz Clients Login here
Question #1
The maximum mass of a white dwarf is ______ times the mass of the Sun.
A.
1.0
B.
1.4
C.
0.1
D.
0.4
E.
2.0
F.
3.0
Question #2
A luminous shell of gas ejected from an old low-mass star is called a __________.
A.
supernova explosion
B.
auora borealis
C.
planetary nebula
D.
event horizon
E.
close binary
Question #3
White dwarfs are primarily composed of ____________.
A.
hydrogen
B.
hydrogen and helium
C.
iron
D.
carbon and oxygen
E.
helium
Question #4
The collapse of the iron core in a massive star results in a ____________.
A.
supernova explosion
B.
helium flash
C.
white dwarf
D.
red giant star
E.
planetary nebula
Question #5
What nuclear reaction is the energy source of a white dwarf?
A.
silicon fusing into iron
B.
oxygen fusing into silicon
C.
hydrogen fusing into helium
D.
none
E.
helium fusing into carbon
F.
carbon and helium fusing into oxygen
Question #6
The debris from a supernova explosion is called a supernova _________.
A.
shockwave
B.
aftermath
C.
remnant
D.
burst
E.
nebula
Question #7
A singularity is _________.
A.
any collapsed object without a companion star
B.
swirling matter surrounding a neutron star
C.
the remains of a white dwarf supernova
D.
the stream of jets of x-rays emitted from a pulsar
E.
the point at the center of a black hole
Question #8
Which of the following are thought to be rapidly rotating neutron stars with intense magnetic fields?
A.
white dwarfs
B.
black holes
C.
accretion disks
D.
pulsars
E.
flare stars
Question #9
The boundary of a black hole is called the _____________.
A.
singularity
B.
darkness limit
C.
event horizon
D.
radiation vortex
E.
edge of night
Question #10
An object from which neither matter nor light can escape is called a _________.
A.
black hole
B.
supernova
C.
white dwarf
D.
planetary nebula
E.
neutron star
Question #11
Which of these is closest in size to a neutron star?
A.
Earth
B.
Solar System
C.
City
D.
Jupiter
E.
Sun
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Astronomy 154 - Elementary Astronomy ] course for $25 USD.
Existing Quiz Clients Login here