Quiz
High Mass Stars
3 years ago by
craniumfire
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  • Question 1
    30 seconds
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    Q. What are the two opposing forces that keep stars between collapsing and inflating?
    answer choices
    centripetal force and electron degeneracy force
    centripetal force and the pressure of hot gasses
    gravity and electron degeneracy force
    gravity and the pressure of hot gasses
  • Question 2
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    Q. Hydrogen fusion makes helium. "Triple-alpha" helium fusion makes ___
    answer choices
    lithium
    boron
    carbon
    sulfur
  • Question 3
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    Q. Carbon will fuse in the core of a star that has more relative mass than ___
    answer choices
    about four times the Sun's mass
    about eight times the Sun's mass
    about 18 times the Sun's mass
    about 40 times the Sun's mass
  • Question 4
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    Q. If a star has more than about eight times the Sun's mass, it can fuse carbon into ___
    answer choices
    neon, magnesium and some sodium
    oxygen, magnesium and some sodium
    neon, oxygen and some sodium
    neon, magnesium and some oxygen
  • Question 5
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    Q. A star becomes a ticking time-bomb once silicon starts fusing into ___
    answer choices
    calcium
    cadmium
    iron
    lead
  • Question 6
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    Q. When helium fusion begins, a massive, blue, main sequence star will become ___
    answer choices
    a red dwarf
    a blue dwarf
    a blue giant
    a red super giant
  • Question 7
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    Q. Which bright star, in the constellation Orion, is a red super giant?
    answer choices
    Rigel
    Betelgeuse
    Bellatrix
    Saiph
  • Question 8
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    Q. VY Canis Majoris, the largest known star, is two billion km across and is classified as ___
    answer choices
    a hypergoliath
    a mega-titan
    a hypergiant
    a mega-leviathan
  • Question 9
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    Q. The core of a supergiant star looks like an onion because it has ___
    answer choices
    white inner layers
    a brown outer layer
    multiple layers
    a bulb shape
  • Question 10
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    Q. The Sun can fuse hydrogen for over ten billion years, while a star twice as massive runs out of hydrogen in ___
    answer choices
    two billion years
    five billion years
    the same amount of time
    twenty billion years
  • Question 11
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    Q. In massive stars, the fusion of which element occurs at a "ridiculously high rate"?
    answer choices
    carbon
    neon
    oxygen
    silicon
  • Question 12
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    Q. Which element, in its creation, removes energy from a star's core and also sucks up electrons?
    answer choices
    neon
    oxygen
    silicon
    iron
  • Question 13
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    Q. As the core collapses, if a star has less than twenty times the Sun's mass, it becomes ___
    answer choices
    a white dwarf
    a neutron star
    a brown dwarf
    a black hole
  • Question 14
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    Q. As the core collapses, if a star has more than twenty times the Sun's mass, it becomes ___
    answer choices
    a white dwarf
    a neutron star
    a planetary nebula
    a black hole
  • Question 15
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    Q. The collapse of a star's core generates vast numbers of elusive subatomic particles called ___
    answer choices
    neutrinos
    neutrons
    photons
    quarks
  • Question 16
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    Q. When the vast wave of neutrinos slams into the oncoming outer material, the explosion is called ___
    answer choices
    a supernova
    a super-aster
    a meganova
    a mega-aster
  • Question 17
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    Q. During a supernova, the expanding gas blasts outward at ___
    answer choices
    2% of the speed of light
    10% of the speed of light
    20% of the speed of light
    40% of the speed of light
  • Question 18
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    Q. The Crab Nebula, formed from expanding material, is called ___
    answer choices
    an open cluster
    a planetary nebula
    a supernova remnant
    a globular cluster
  • Question 19
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    Q. Betelgeuse will certainly explode some day, but it's ___
    answer choices
    too far away to hurt us
    too far away to see
    too small to be a supernova
    too small too see
  • Question 20
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    Q. The creation of heavy elements during a supernova explosion is called ___
    answer choices
    explosive amalgamation
    fusion amalgamation
    explosive nucleosynthesis
    nuclear coalescence
  • Question 21
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    Q. The majority of heavy elements in the universe were created and scattered by ___
    answer choices
    supernovae
    the Big Bang
    planetary nebulae
    star formation
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