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White Dwarfs & Planetary Nebulae
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9th - 12th grade
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Other Sciences
3 years ago by
craniumfire
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White Dwarfs & Planetary Nebulae
DRAFT
3 years ago by
craniumfire
9th - 12th grade
Other Sciences
Played 746 times
0 likes
68% average accuracy
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20 questions
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Question 1
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30 seconds
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Q. Currently, the Sun is fusing ___
answer choices
hydrogen into helium
helium into hydrogen
helium into carbon
hydrogen into carbon
hydrogen into helium
alternatives
helium into hydrogen
helium into carbon
hydrogen into carbon
answer explanation
Question 2
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Q. Eventually, the Sun will fuse helium into carbon, along with a dash of ___
answer choices
neon and lithium
silicon and neon
oxygen and neon
oxygen and silicon
neon and lithium
alternatives
silicon and neon
oxygen and neon
oxygen and silicon
answer explanation
Question 3
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Q. The Sun's power will be switched off once the core is nearly pure ___
answer choices
helium
lithium
carbon
silicon
helium
alternatives
lithium
carbon
silicon
answer explanation
Question 4
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Q. How long from now until the Sun’s outer layers are gone and our star is just its core?
answer choices
about 8 million years
about 80 million years
about 8 billion years
about 80 billion years
about 8 million years
alternatives
about 80 million years
about 8 billion years
about 80 billion years
answer explanation
Question 5
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Q. Once helium fusion stops, the dominant force in supporting the core of a star is called ___
answer choices
neutron degradation pressure
photon depravity pressure
electron degeneracy pressure
proton dissoluteness pressure
neutron degradation pressure
alternatives
photon depravity pressure
electron degeneracy pressure
proton dissoluteness pressure
answer explanation
Question 6
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Q. The Sun, when its core has contracted to about the size of Earth, will be classified as ___
answer choices
a white dwarf
a blue dwarf
a white subgiant
a blue subgiant
a white dwarf
alternatives
a blue dwarf
a white subgiant
a blue subgiant
answer explanation
Question 7
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Q. A single cubic centimeter of a white dwarf, the size of a six-sided die, has a mass of ___
answer choices
a thousand grams — ten metric tons
a million grams — ten metric tons
a thousand grams — one metric ton
a million grams — one metric ton
a thousand grams — ten metric tons
alternatives
a million grams — ten metric tons
a thousand grams — one metric ton
a million grams — one metric ton
answer explanation
Question 8
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Q. If you have a mass of 75 kg, and you stood on the surface of a white dwarf, you’d weigh ___
answer choices
7.5 tons
75 tons
750 tons
7,500 tons
7.5 tons
alternatives
75 tons
750 tons
7,500 tons
answer explanation
Question 9
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Q. Because white dwarfs are so small, they’re actually ___
answer choices
quite cool
quite faint
quite hot
quite bright
quite cool
alternatives
quite faint
quite hot
quite bright
answer explanation
Question 10
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Q. An expanding, glowing shell of gas around an aging star is called ___
answer choices
a dwarf nebula
a planetary nebula
a dwarf nimbus
a planetary nimbus
a dwarf nebula
alternatives
a planetary nebula
a dwarf nimbus
a planetary nimbus
answer explanation
Question 11
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Q. The first planetary nebula was discovered in 1764 by the French astronomer ___
answer choices
William Herschel
Charles Messier
Edwin Hubble
Harlow Shapley
William Herschel
alternatives
Charles Messier
Edwin Hubble
Harlow Shapley
answer explanation
Question 12
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Q. One of the biggest planetary nebulae in the sky is M 27 - the 27th object on ___
answer choices
the Mercator projection
the Mesopotamia map
Maxwell's star chart
Messier’s list
the Mercator projection
alternatives
the Mesopotamia map
Maxwell's star chart
Messier’s list
answer explanation
Question 13
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Q. Some planetaries look like soap bubbles, which is what you'd expect when you look at ___
answer choices
an expanding shell of gas
an contracting shell of gas
an expanding shell of dust
a contracting shell of dust
an expanding shell of gas
alternatives
an contracting shell of gas
an expanding shell of dust
a contracting shell of dust
answer explanation
Question 14
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Q. What technology revealed faint structures, such as jets and tendrils, in planetary nebulae?
answer choices
ultraviolet telescopes
infrared telescopes
digital detectors
analog detectors
ultraviolet telescopes
alternatives
infrared telescopes
digital detectors
analog detectors
answer explanation
Question 15
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Q. If a dying star has a companion, what force can shape the solar wind so that it's not spherical?
answer choices
electron degeneracy force
gravitational force
centripetal force
centrifugal force
electron degeneracy force
alternatives
gravitational force
centripetal force
centrifugal force
answer explanation
Question 16
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Q. Many weird and fantastic shapes in planetaries may be due to progenitor stars that have ___
answer choices
expelled other stars
expelled their planets
swallowed their planets
swallowed other stars
expelled other stars
alternatives
expelled their planets
swallowed their planets
swallowed other stars
answer explanation
Question 17
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Q. Which element, originally dubbed nebulium, causes planetary nebulae to glow green?
answer choices
hydrogen
helium
oxygen
nitrogen
hydrogen
alternatives
helium
oxygen
nitrogen
answer explanation
Question 18
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Q. Which elements can cause planetary nebulae to glow red?
answer choices
oxygen, nitrogen, and sulfur
hydrogen, nitrogen, and sulfur
hydrogen, oxygen, and sulfur
hydrogen, nitrogen, and oxygen
oxygen, nitrogen, and sulfur
alternatives
hydrogen, nitrogen, and sulfur
hydrogen, oxygen, and sulfur
hydrogen, nitrogen, and oxygen
answer explanation
Question 19
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Q. How long can the glowing gases of a planetary nebula be seen, before they fade?
answer choices
a few years
a few thousand years
a few million years
a few billion years
a few years
alternatives
a few thousand years
a few million years
a few billion years
answer explanation
Question 20
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Q. When the Sun becomes a white dwarf, it most likely will ___
answer choices
go quietly, without a lot of visible fanfare
create a planetary nebulae
make the surrounding gas glow
explode in a supernova
go quietly, without a lot of visible fanfare
alternatives
create a planetary nebulae
make the surrounding gas glow
explode in a supernova
answer explanation
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