Star Comparisons Quiz
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Question
Use the diagram to answer the question.
The life trajectory of a stellar nebula is shown. The stellar nebula, a purple gas ball turns into an average star, depicted as a yellow circle, within 500 million years. The average star turns into a red giant, depicted as a medium sized red circle, within 10000 million years. The red giant turns into a planetary nebula, a bright star surrounded by green and blue gases, within 1000 million years. And the planetary nebula gradually cools into a white dwarf, depicted as a small white circle. The stellar nebula can also turn into a massive star, depicted as a medium blue circle, within 0.1 million years. The massive star turns into a red supergiant, depicted as a large orange circle, within 15 million years. The red supergiant turns into a supernova, a bright white star, within 1 million years. The supernova can either turn into a neutron star, depicted as a yellow sphere with white rays coming out of its sides, or a black hole, a small black circle surrounded by purple rays.
According to the diagram, where do all stars begin their evolution?
(1 point)
Responses
red giant
red giant
stellar nebula
stellar nebula
white dwarf
stellar nebula
Select the correct answer from the list.(1 point)
As a star's size increases, its luminosity
. As a star's temperature
, its luminosity increases.
As a star's size increases, its luminosity increases. As a star's temperature increases, its luminosity increases.
Which state of matter best describes the elements inside stars?(1 point)
Responses
liquid
liquid
gas
gas
plasma
plasma
solid
plasma
Why are spectral lines useful in classifying stars?(1 point)
Responses
They show the composition of a star.
They show the composition of a star.
They show the layers that make up a star.
They show the layers that make up a star.
They indicate a star's age.
They indicate a star's age.
They show a star's location.
They show the composition of a star.
Use the diagram to answer the question.
A graph illustrates the relationship between the luminosity (Sun = 1), ranging from 0.0001 to 10000, and temperature in Kelvin, ranging from 30000 to 3000, for various stars classifications. Main sequence stars extend diagonally from the top left to the bottom right corner of the graph. The White Dwarfs, Giants, and Super Giants are placed on the graph according to their luminosity and temperature.
In which spectral class does a white dwarf with a temperature of 10,000 K belong?
(1 point)
Responses
A
A
O
O
F
F
B
B
Which are examples of non-visible light?(1 point)
Responses
white light from a lightbulb and rainbows
white light from a lightbulb and rainbows
rainbows and X-rays
rainbows and X-rays
radio waves and ultraviolet light
radio waves and ultraviolet light
white light from the sun and microwaves
white light from the sun and microwaves