Which shows the stars in the correct order, from smallest in size to largest?(1 point)

Responses

white dwarf, red supergiant, Sun
white dwarf, red supergiant, Sun

white dwarf, Sun, red supergiant
white dwarf, Sun, red supergiant

Sun, white dwarf, red supergiant
Sun, white dwarf, red supergiant

Sun, red supergiant, white dwarf

11 answers

The correct order of stars from smallest in size to largest is:

white dwarf, Sun, red supergiant

So the response should be: white dwarf, Sun, red supergiant.

The photosphere and chromosphere are typically described by which of the following characteristics?(1 point)
Responses

their visible colors, such as red or yellow
their visible colors, such as red or yellow

the way in which energy travels through them
the way in which energy travels through them

their extreme depths relative to other layers
their extreme depths relative to other layers

their plasma composition

The photosphere and chromosphere are typically described by the following characteristic:

their visible colors, such as red or yellow.

The chromosphere is known for its reddish color during solar eclipses, while the photosphere appears yellowish or white.

Which is the order of the flow of energy from its production within the sun until it reaches Earth?(1 point)
Responses

radiation; nuclear fusion; convection currents; radiation
radiation; nuclear fusion; convection currents; radiation

radiation; convection currents; radiation; nuclear fusion
radiation; convection currents; radiation; nuclear fusion

nuclear fusion; radiation; convection currents
nuclear fusion; radiation; convection currents

nuclear fusion; radiation; convection currents; radiatio

The correct order of the flow of energy from its production within the Sun until it reaches Earth is:

nuclear fusion; radiation; convection currents; radiation.

So the response should be: nuclear fusion; radiation; convection currents; radiation.

Analyze the following terms and phrases about solar activity. Select the two that represent correct matches between cause and effect.(1 point)
Responses

solar activity -- sudden eruptions of large bubbles of plasma and magnetic energy
solar activity -- sudden eruptions of large bubbles of plasma and magnetic energy

solar flare -- sudden release of magnetic energy
solar flare -- sudden release of magnetic energy

sunspot -- magnetic field of the sun emerges as a loop
sunspot -- magnetic field of the sun emerges as a loop

coronal mass ejection -- relatively cool spot on surface of the sun
coronal mass ejection -- relatively cool spot on surface of the sun

sun's magnetic field -- uneven churning of the sun's gravitational field

The two statements that represent correct matches between cause and effect are:

  1. solar activity -- sudden eruptions of large bubbles of plasma and magnetic energy
  2. solar flare -- sudden release of magnetic energy

These two accurately describe aspects of solar activity and solar flares.

Which is an accurate statement about the different types of radiation that are measured in the Total Solar Irradiance? Select the two correct answers.(1 point)
Responses

Radiation with short wavelengths is emitted steadily and constantly from the sun.
Radiation with short wavelengths is emitted steadily and constantly from the sun.

Radiation in the visible light wavelengths is emitted steadily and constantly from the sun.
Radiation in the visible light wavelengths is emitted steadily and constantly from the sun.

Radiation with long infrared wavelengths is most likely to have the widest variation.
Radiation with long infrared wavelengths is most likely to have the widest variation.

Radiation in the short extreme ultraviolet (EUV) range is most likely to have the widest variation.
Radiation in the short extreme ultraviolet (EUV) range is most likely to have the widest variation.
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The two accurate statements about the different types of radiation that are measured in the Total Solar Irradiance are:

  1. Radiation in the visible light wavelengths is emitted steadily and constantly from the sun.
  2. Radiation in the short extreme ultraviolet (EUV) range is most likely to have the widest variation.

These statements correctly describe the behavior of radiation emissions from the Sun.

Which is a correct statement about Aristotle's and Ptolemy's models of the solar system?(1 point)
Responses

Ptolemy's model involved epicycles moving along perfect circles.
Ptolemy's model involved epicycles moving along perfect circles.

Aristotle's model involved epicycles moving within crystalline spheres.
Aristotle's model involved epicycles moving within crystalline spheres.

Aristotle's model put the Sun at the center.
Aristotle's model put the Sun at the center.

Ptolemy's model was never useful because it was incorrect.
Ptolemy's model was never useful because it was incorrect.

The correct statement about Aristotle's and Ptolemy's models of the solar system is:

Ptolemy's model involved epicycles moving along perfect circles.

Ptolemy's geocentric model included the idea of epicycles to explain the complex motions of the planets while maintaining the concept of circular orbits.