ESS Quiz 3

1

A main sequence star is powered by

nuclear fusion of iron into heavier elements

nuclear fusion of hydrogen into helium

nuclear fusion of helium into heavier elements

1

The following events happen during Big Bang nucleosynthesis EXCEPT

fusion of protons and neutrons to form hydrogen

collision of quarks and gluons into subatomic particles

cooling of the temperature

fusion of helium into iron

1

This graph shows the relative abundance of elements in the universe and their number of protons. Which of the following explains how elemental abundance in the universe supports the Big Bang theory?

The elemental abundance shows that the universe is expanding because there are more elements found today than in the past.

The elemental abundance shows that the universe started from a singularity because the most abundance element, the hydrogen, only has 1 proton.

The elemental abundance shows that the universe is expanding because the elements have increasing amount of protons.

The elemental abundance shows that the universe started from a singularity because we can extrapolate the amount of H back in time to an infinitely small and dense beginning.

1

The more massive a main sequence star, the its temperature because

higher; it burns heavier elements, which burn hotter

lower; the nuclear fusion is deeper in the star

higher; it must burn more hydrogen to keep from collapsing

lower; it burns heavier elements, which burn cooler

1

The dark line emission spectra used to determine the elemental composition of stars represents __________ emitted from the stars.

visible light spectrum

the entire electromagnetic spectrum

microwave radiation

infrared spectrum

1

Nuclear fusion in the stars can only form elements up to Fe²⁶ because

the star is dying when Fe²⁶ is made

there is insufficient atoms to fuse

there is insufficient energy to fuse Fe²⁶ to H or He atoms

the star is going to explode

1

By analyzing the spectrum of light from distant galaxies, astronomers learned that they are

brighter when they are closer to us

hotter the farther out they are

moving away from us

made of different materials

1

The star's color is determined by

temperature at its core

size of the star

brightness of the star

mass of the star

1

Which of the following cluster of stars represent the red super giants?

A

C

B

D

1

Use the elemental spectrum to determine the type of elements found in the spectroscopic analysis of a star.

The star has all the elements.

The star has very little elements.

The star has hydrogen, helium, and carbon.

The star has hydrogen and helium.

The questions below are optional.

0

A __________ can only be seen indirectly because it emits no light.

supernova

black hole

white dwarf

white hole

0

By analyzing the redshift of light from distant galaxies, astronomers learned that they are

hotter the farther out they are

moving away from us

brighter when they are closer to us

made of different materials

ESS Quiz 3

A main sequence star is powered by

The following events happen during Big Bang nucleosynthesis EXCEPT

This graph shows the relative abundance of elements in the universe and their number of protons. Which of the following explains how elemental abundance in the universe supports the Big Bang theory?

The more massive a main sequence star, the __________ its temperature because __________

The dark line emission spectra used to determine the elemental composition of stars represents __________ emitted from the stars.

Nuclear fusion in the stars can only form elements up to Fe26 because

By analyzing the spectrum of light from distant galaxies, astronomers learned that they are

The star's color is determined by

Which of the following cluster of stars represent the red super giants?

Use the elemental spectrum to determine the type of elements found in the spectroscopic analysis of a star.

A __________ can only be seen indirectly because it emits no light.

By analyzing the redshift of light from distant galaxies, astronomers learned that they are

A main sequence star is powered by

The following events happen during Big Bang nucleosynthesis EXCEPT

This graph shows the relative abundance of elements in the universe and their number of protons. Which of the following explains how elemental abundance in the universe supports the Big Bang theory?

The more massive a main sequence star, the __________ its temperature because __________

The dark line emission spectra used to determine the elemental composition of stars represents __________ emitted from the stars.

Nuclear fusion in the stars can only form elements up to Fe26 because

By analyzing the spectrum of light from distant galaxies, astronomers learned that they are

The star's color is determined by

Which of the following cluster of stars represent the red super giants?

Use the elemental spectrum to determine the type of elements found in the spectroscopic analysis of a star.

A __________ can only be seen indirectly because it emits no light.

By analyzing the redshift of light from distant galaxies, astronomers learned that they are

The more massive a main sequence star, the its temperature because

Nuclear fusion in the stars can only form elements up to Fe²⁶ because

The more massive a main sequence star, the its temperature because

Nuclear fusion in the stars can only form elements up to Fe²⁶ because