Exploring Stars and the Universe

What is the primary process that occurs in the sun's core to release energy?

• Nuclear fission

• Nuclear fusion

• Radioactive decay

• Chemical combustion

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Which element is primarily produced in the core of the sun during its main sequence?

• Helium

• Carbon

• Oxygen

• Iron

Tags

NGSS.HS-ESS1-1

Explain how the light spectra of distant galaxies provide evidence for the Big Bang theory.

• The light spectra show galaxies are moving closer, indicating a contracting universe.

• The light spectra show galaxies are moving away, indicating an expanding universe.

• The light spectra remain constant, indicating a static universe.

• The light spectra show random movement, indicating no specific pattern.

Tags

NGSS.HS-ESS1-2

Describe the role of nuclear fusion in the sun's energy production.

• Nuclear fusion combines light elements into heavier ones, releasing energy.

• Nuclear fusion splits heavy elements into lighter ones, releasing energy.

• Nuclear fusion absorbs energy to combine elements.

• Nuclear fusion has no role in energy production.

Tags

NGSS.HS-ESS1-1

What evidence supports the Big Bang theory?

• The abundance of heavy elements in the universe.

• The cosmic microwave background radiation found everywhere in the universe.

• The presence of only carbon-based life forms.

• The lack of any elements in the universe.

Tags

NGSS.HS-ESS1-2

Develop a model to illustrate the life span of the sun. Which stage follows the main sequence phase?

• Red giant

• White dwarf

• Supernova

• Black hole

Tags

NGSS.HS-ESS1-1

What is the significance of the motion of distant galaxies in understanding the universe's expansion?

• It shows galaxies are stationary, indicating a static universe.

• It shows galaxies are moving towards each other, indicating a contracting universe.

• It shows galaxies are moving away from each other, indicating an expanding universe.

• It shows galaxies are moving in random directions, indicating no specific pattern.

Tags

NGSS.HS-ESS1-2

Communicate the process by which stars produce heavier elements in their later stages.

• Through nuclear fusion of lighter elements.

• Through nuclear fission of heavier elements.

• Through chemical reactions with surrounding space.

• Through gravitational collapse.

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

What is the final stage of a star like the sun in its life cycle?

• Black hole

• Neutron star

• White dwarf

• Supernova

Construct an explanation of how the Big Bang theory accounts for the motion of galaxies.

• The theory suggests galaxies are moving towards a central point.

• The theory suggests galaxies are moving away from a central point.

• The theory suggests galaxies are stationary.

• The theory suggests galaxies are moving in random directions.

Tags

NGSS.HS-ESS1-2