Stars

Created by

Cameron Hodson

Cards (34)

What is the first stage in a star's life cycle?
Formation of a protostar
What is a nebula?
A nebula is a large cloud of gas and dust in space.
What happens to the temperature of the cloud as it collapses to form a protostar?
The temperature increases due to increasing pressure.
What role does gravity play in the formation of a protostar?
Gravity causes the nebula to contract and break into smaller clouds.
At what temperature does a cloud become a protostar?
About 2000K
What is the main sequence stage in a star's life cycle? 
The main sequence is the longest stage where the star is stable and fusing hydrogen into helium in its core.
What occurs in the core of a star during the main sequence stage?
Nuclear fusion of hydrogen to helium occurs in the core.
What maintains the balance in a star during the main sequence stage?
The balance is maintained between gravity pulling inward and radiation pressure pushing outward.
What is the relationship between a star's mass and its main sequence stage duration?
More massive stars burn fuel faster and have shorter lives, while less massive stars burn fuel slower and have longer lives.
What happens to a star when it enters the red giant phase?
The core contracts and heats up, while the outer layers expand and cool, turning the star red.
What begins in the core of a star during the red giant phase?
Helium fusion begins in the core.
What is a planetary nebula?
A planetary nebula is formed when the outer layers of a red giant are ejected, creating a glowing shell of gas.
What is the fate of low-mass stars after the red giant phase?
They form a planetary nebula and leave behind a white dwarf core.
What is a white dwarf?
A white dwarf is the hot, dense core left behind after a low-mass star has shed its outer layers.
What is a black dwarf?
A black dwarf is a theoretical stage that a white dwarf would reach after cooling for an extremely long time.
What happens to high-mass stars after the supergiant stage?
They undergo a supernova explosion, ejecting their outer layers into space.
What determines whether a high-mass star becomes a neutron star or a black hole?
The initial mass of the star determines its final state after the supernova explosion.
What occurs when iron forms in the core of a high-mass star?
Fusion stops, leading to the rapid collapse of the core and triggering a supernova explosion.
What is the remnant of a high-mass star after a supernova explosion?
The remnant can become either a neutron star or a black hole, depending on the initial mass of the star.
What is a central theme in Macbeth? 
Appearance vs. reality
How does Shakespeare use the theme of appearance vs. reality in Macbeth? 
To explore deception, ambition, and moral corruption
What does the quote "fair is foul, and foul is fair" suggest? 
That things are not as they seem
How do characters in Macbeth often disguise their true intentions? 
By presenting false appearances
How does Macbeth's character transform throughout the play? 
From a loyal thane to a deceitful king
What does Macbeth use to maintain his public image? 
Deception
What internal conflict does Macbeth experience? 
Between his conscience and his desires
What role does Lady Macbeth play in the theme of appearance vs. reality? 
She is the architect of deception
What advice does Lady Macbeth give to Macbeth after Duncan's murder? 
To appear innocent while hiding his guilt
How does Lady Macbeth manipulate her own appearance? 
By presenting herself as a gracious hostess
What does Lady Macbeth's mental breakdown reveal? 
The toll of maintaining false appearances
How does the dagger scene highlight the theme of appearance vs. reality? 
It blurs the line between reality and imagination
What does the imaginary dagger in Macbeth symbolize? 
Macbeth's guilty conscience
What do the witches represent in Macbeth? 
The deceptive nature of evil and ambition
How do the witches' prophecies about Banquo demonstrate the theme of appearance vs. reality? 
They appear to promise good fortune but lead to tragedy