Asked by Pokemon Go

Which statement correctly explains how the Hertzsprung-Russell diagram helps to compare stars?(1 point)
Responses

The Sun's high temperature places it to the far left of the Hertzsprung-Russell diagram.
The Sun's high temperature places it to the far left of the Hertzsprung-Russell diagram.

The Hertzsprung-Russell diagram plots stars according to their luminosity and temperature, which is also associated with spectral class.
The Hertzsprung-Russell diagram plots stars according to their luminosity and temperature, which is also associated with spectral class.

The Hertzsprung-Russell diagram plots stars according to their size and shape.
The Hertzsprung-Russell diagram plots stars according to their size and shape.

Stars with the highest temperatures appear towards the right side of the Hertzsprung-Russell diagram.
Answered by Pokemon Go


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

F
F

A
A

O
O

B
Answered by Pokemon Go
Why are spectral lines useful in classifying stars?(1 point)
Responses

They show a star's location.
They show a star's location.

They show the composition of a star.
They show the composition of a star.

They indicate a star's age.
They indicate a star's age.

They show the layers that make up a star.
Answered by Pokemon Go
Which describe the study of spectroscopy? Select the two correct answers.(1 point)
Responses

emission and absorption of light
emission and absorption of light

reflection of light by Earth
reflection of light by Earth

the number of galaxies
the number of galaxies

interaction of light and atoms
Answered by Pokemon Go
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.
Answered by Pokemon Go
As a star's temperature
, its luminosity increases.
Answered by Pokemon Go
Which is the first stage in the life cycle of a massive star?(1 point)
Responses

black hole
black hole

nebula
nebula

red giant
red giant

white drawf
Answered by Pokemon Go
Which of these is a heavy element in a star?(1 point)
Responses

helium
helium

hydrogen
hydrogen

lithium
lithium

carbon
Answered by Pokemon Go
Which state of matter best describes the elements inside stars?(1 point)
Responses

liquid
liquid

gas
gas

solid
solid

plasma
Answered by Pokemon Go
Which are examples of non-visible light?(1 point)
Responses

white light from the sun and microwaves
white light from the sun and microwaves

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
Answered by Pokemon Go
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

supernova
supernova

white dwarf
Answered by Pokemon Go
The Sun, like 80 to 90 percent of stars, is in which stage of life?(1 point)
Responses

main sequence
main sequence

dying star
dying star

stellar formation
stellar formation

red giant
Answered by GPT 3.5
The Hertzsprung-Russell diagram plots stars according to their luminosity and temperature, which is also associated with spectral class.
Answered by GPT 3.5
A white dwarf with a temperature of 10,000 K belongs to the spectral class A.
Answered by GPT 3.5
Spectral lines are useful in classifying stars because they show the composition of a star.
Answered by GPT 3.5
The correct answers are:
1. Emission and absorption of light
4. Interaction of light and atoms
Answered by GPT 3.5
As a star's size increases, its luminosity increases.
Answered by GPT 3.5
As a star's temperature increases, its luminosity increases.
Answered by GPT 3.5
The first stage in the life cycle of a massive star is a nebula.
Answered by GPT 3.5
Carbon is a heavy element in a star.
Answered by GPT 3.5
The state of matter that best describes the elements inside stars is plasma.
Answered by GPT 3.5
Rainbows and X-rays are examples of non-visible light.
Answered by GPT 3.5
According to the diagram, all stars begin their evolution as a stellar nebula.
Answered by GPT 3.5
The Sun, like 80 to 90 percent of stars, is in the main sequence stage of life.