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