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Stars
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When a nebula condenses, takes on a shape, and emits light is called:
T-Tauri
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Main sequence stars are made primarily of which elements?
H and He
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When a red giant's outer atmosphere drifts away releasing elements to space is now known as:
planetary nebula
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A star is born when:
a nebula turns into a protostar.
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All stars____?
Produce light.
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When the core of a Red Supergiant collapses, a bright event occurs, known as:
supernova.
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If our Sun died out, what would it become at the end?
White dwarf
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A ________ is an object so dense with so much gravity that even light cannot escape.
black hole
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Stars are formed from big clouds of gas and dust is known as:
Nebula
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A_________________ is so massive that light can't even escape. What am I?
black hole
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When a medium mass star begins to run out of fuel, what does it become?
Red giant
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Our sun is currently in what star stage?
Main sequence
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After a supernova, the core can collapse into a neutron star, or if massive enough it can become a:
black hole
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The stable and longest lasting period of a star’s life cycle is called:
Main Sequence
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What is the main factor that determines what a star will become?
Mass and amount of H available
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Hydrogen is the most common chemical element in most stars? T or F
True
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A star that has ignited and has used up all of the hydrogen is called:
Red Giant
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What does a low mass star become when it runs out of fuel?
white dwarf
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What type of stars' color is the hottest?
Blue
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One possible outcome that is left after a supernova is a super dense core called a:
neutron star.
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What is the final stage of a white dwarf?
Black dwarf.
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The brightness of a star depends on?
Temperature, size, distance from earth
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The main energy acting on a nebula at the beginning is:
Heat
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Why won't our sun ever become a black hole?
It is too small.
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What is the correct order of the life cycle of massive stars?
Nebula --> protostar --> main sequence --> red supergiant --> supernova --> blackhole/ neutron star
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A gigantic explosion that causes the death of a large star is called
supernova
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What fuel do main sequence stars use?
H
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A black hole is black because:
even light cannot escape its gravity.
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