A supernova is an extremely violent star explosion that results in the total destruction of the star. The material that makes up the star is blown out into the surrounding regions.
What is the effect of a star up to nine times the mass of the sun running out of fuel?
In “Black Hole Beginnings,” what is described as an effect of a star up to nine times the mass of the sun running out of fuel?
It turns into a white dwarf.
What described as the cause of gas and dust forming into a star?
Star Formation. Stars form inside relatively dense concentrations of interstellar gas and dust known as
molecular clouds
. These regions are extremely cold (temperature about 10 to 20K, just above absolute zero). … Star formation begins when the denser parts of the cloud core collapse under their own weight/gravity.
Which sentence from the black hole beginnings contains a cause and effect relationship?
Which sentence from “Black Hole Beginnings” contains a cause-and-effect relationship?
More matter mounts up on the outside, increasing the pressure on the inside.
What causes the end of a star?
Stars die because they
exhaust
their nuclear fuel. … Really massive stars use up their hydrogen fuel quickly, but are hot enough to fuse heavier elements such as helium and carbon. Once there is no fuel left, the star collapses and the outer layers explode as a ‘supernova’.
What are the factors that affect star formation at present?
In detail, though, the star formation rate depends on many other factors, including the
temperature of the gas, turbulent motions
, the gravitational potential of the surroundings, magnetic effects, ionizing photons from nearby stars, and more.
What happens first when a star begins to run out of fuel?
What happens first when a star begins to run out of fuel? …
The star becomes a white dwarf
.
How do we know how stars are formed?
Astronomers in the US believe they have figured out
how stars form from clouds of gas
. … Gravitational collapse is a top-down process in which molecular clumps that are hundreds of times heavier than the Sun fragment into gaseous cores, which then collapse to make individual stars.
Which word signals an effect if Since Because therefore?
Cause
is defined as why something happened. Clue words that signal causal relationships include: such as, because, so, consequently, therefore, thus, and since.
Which statement correctly explains how the image and text work together to support understanding?
Which statement correctly explains how the image and text work together to support understanding?
The image shows nuclei moving away from each other, and the text explains why they move away from each other
. The image shows the speed and motion of the nuclei, and the text explains why they fuse.
What happens at the end of a stars life?
Most stars take millions of years to die. When a star like the Sun has burned all of its hydrogen fuel, it expands to become a red giant. … After puffing off its outer layers,
the star collapses to form a very dense white dwarf
.
What do stars do?
Stars are huge celestial bodies made mostly of hydrogen and helium that
produce light and heat from the churning nuclear forges inside their cores
. Aside from our sun, the dots of light we see in the sky are all light-years from Earth.
What happens when stars collapse?
The Fate of Medium-Sized Stars
Once the helium in the core is gone, the star will shed most of its mass,
forming a cloud of material called a planetary nebula
. The core of the star will cool and shrink, leaving behind a small, hot ball called a white dwarf.
What happens when a star forms?
Stars form from an accumulation of gas and dust, which
collapses due to gravity and starts
to form stars. The process of star formation takes around a million years from the time the initial gas cloud starts to collapse until the star is created and shines like the Sun.
How stars are formed and born?
Stars are born
when large gas clouds collapse under gravity
. They form hot cores that gather more and more gas and dust until a protostar is formed. If only a small amount of gas is around, then only a small star will form; if a large amount of gas is present, then a massive star will form.
Is an early stage in the formation of a star resulting from the gravitational collapse of gases?
Stars
begin to form from clouds of gas in space. The cold temperatures and high densities (compared to elsewhere in space, but would be considered a vacuum on Earth) of these clouds allow gravity to overcome thermal pressure and start the gravitational collapse that will form a star.
What happens to the gas that escapes into space at the end of a stars life cycle?
With no fuel left to burn,
the hot star radiates its remaining heat into the coldness of space
for many billions of years. In the end, it will just sit in space as a cold dark mass sometimes referred to as a black dwarf.
Can a star turn into a planet?
Yes,
a star can turn into a planet
, but this transformation only happens for a very particular type of star known as a brown dwarf. Some scientists do not consider brown dwarfs to be true stars because they do not have enough mass to ignite the nuclear fusion of ordinary hydrogen.
What is a dying star called?
Some types of stars expire with titanic explosions, called
supernovae
. When a star like the Sun dies, it casts its outer layers into space, leaving its hot, dense core to cool over the eons. … A supernova can shine as brightly as an entire galaxy of billions of “normal” stars.
What causes stars to shine brightly?
Stars shine because they are extremely hot (which is why fire gives off light — because it is hot). The source of their energy is
nuclear reactions going on deep inside the stars
. In most stars, like our sun, hydrogen is being converted into helium, a process which gives off energy that heats the star.
What happens to stars as they age?
Stars with higher mass have shorter lifespans. When
the sun becomes a red giant
, its atmosphere will engulf the Earth. During the red giant phase, a main sequence star’s core collapses and burns helium into carbon. After about 100 million years, the helium runs out, and the star turns into a red supergiant.
What the stars mean?
Stars are a large part of our history and current culture. They have become a sacred and spiritual symbol for many religions all over the world. … Stars have been
symbolic of divine guidance and protection
. The star of Bethlehem representing the guidance of god whilst the star of David is a powerful protection symbol.
What words signal effects?
- Conjunctions. The most important conjunctions are because, as, since, and so. “ …
- Transitions. The most important transitions are therefore, consequently, and as a result. …
- Prepositions. The most important prepositions are due to and because of.
What are some cause and effect signal words?
Sometimes writing prompts include signal words that show cause/effect relationships, such as:
because, so, so that, if… then, consequently, thus, since, for, for this reason, as a result of, therefore, due to, this is how, nevertheless, and accordingly
.
What are the 5 signal words?
Common signal words show
emphasis, addition, comparison or contrast, illustration, and cause and effect
.
What was used to make the first image of a black hole?
The South Pole Telescope
, one of eight telescopes used to capture the first black hole image. This black hole is about 6.5 billion times the mass of the sun.
What stars turn into black holes?
Most black holes form from the remnants of a large star that dies in a supernova explosion. (Smaller stars become
dense neutron stars
, which are not massive enough to trap light.) … When the surface reaches the event horizon, time stands still, and the star can collapse no more – it is a frozen collapsing object.
Why does a star explode after collapsing?
Having too much matter causes the star to explode
, resulting in a supernova. … As the star runs out of nuclear fuel, some of its mass flows into its core. Eventually, the core is so heavy that it cannot withstand its own gravitational force. The core collapses, which results in the giant explosion of a supernova.
What changes in space result from the death of massive stars?
When the
helium fuel runs out, the core will expand and cool
. The upper layers will expand and eject material that will collect around the dying star to form a planetary nebula. Finally, the core will cool into a white dwarf and then eventually into a black dwarf.
What is being described a black hole is not a hole?
No, a black hole is
not really a hole at all
. A black hole is an object just like any other, except that it is extremely dense. This gives it such a high gravitational field that nothing, not even light, can escape. … This may be why it is often misconstrued that black holes are ‘holes’ in space-time.
What stops stars from collapsing?
Stars are fueled by the nuclear fusion of hydrogen to form helium deep in their interiors.
The outflow of energy from the central regions of the star
provides the pressure necessary to keep the star from collapsing under its own weight, and the energy by which it shines.
What are the three end stages of stars?
- White Dwarf.
- Neutrons Star.
- Black Hole.
Will the sun explode?
After the sun has burned through most of the hydrogen in its core, it will transition to its next phase as a red giant. At this point roughly 5 billion years in the future, the sun will stop generating heat via nuclear fusion, and its core will become unstable and contract, according to NASA.
Are humans made of stars?
Stars that go supernova are responsible for creating many of the elements of the periodic table, including those that make up the human body. … ‘It is totally 100% true:
nearly all the elements in the human body were made in a star
and many have come through several supernovas.
Where do stars form and why quizlet?
Stars are
born in cold, relatively dense molecular clouds
. As a cloud fragment collapses under gravity, it becomes a rapidly rotation protostar surrounded by a spinning disk of gas in which planets may form.
What’s the birth of a star called?
The first stage in the birth of a star is called
a protostar
. This is where the majority of the stellar material has collected together in ball in the center, but there is a huge disk of gas and dust obscuring it from our view. As long as there is still inflowing material, the object is a protostar.
Why do stars leave the main sequence?
Eventually,
a main sequence star burns through the hydrogen in its core
, reaching the end of its life cycle. At this point, it leaves the main sequence. … Then the pressure of fusion provides an outward thrust that expands the star several times larger than its original size, forming a red giant.
