©BRAINBARTER EXAM SOLUTIONS 2024/2025
ALL RIGHTS RESERVED.
ERTH 101 Exam 3 Questions With Correct
Answers
Plasma - answer✔electrically charged matter
sun is made of this
Thermonuclear fusion - answer✔The fusion that takes place under high temperature
The joining together of nuclei to form larger nuclei.
Hydrostatic equilibrium - answer✔the condition in which gravity and radiation pressure are
balanced
Radiation Pressure - answer✔the pressure resulting from the impact of photons on a surface or
gas
Differential rotation - answer✔Rotation of different regions of an object (different latitudes or
depths) at different rates
fastest at the equator
slower at the pole
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ALL RIGHTS RESERVED.
Core - answer✔the central region of a star where high temperatures and high densities allow
thermonuclear fusion reactions to occur, releasing energy
about 10 million K
Radiative Zone - answer✔the region of the sun above the core, where energy is transported
outward by means of electromagnetic radiation (photons scattering off of particles of mass)
Convective Zone - answer✔The region of the sun above the radiative zone, where energy is
transported outward by the means of the motion of gas
makes it all the away to the surface of the sun
Photosphere - answer✔the thin "surface" of the sun, from which radiation escapes into space
Chromosphere - answer✔the lower layer of the suns atmosphere
glowing pink- it is red coming from ionized hydrogen alpha and white from sun
Corona - answer✔the extended region of the extremely hot, low density gas surrounding the
sun
about 1 million K
Strong nuclear force - answer✔One of the four fundamental forces in nature, it binds particles
together the nucleus of an atom
holds the nucleus together
Proton-proton (P-P)
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ALL RIGHTS RESERVED.
chain - answer✔nuclear fusion of hydrogen into helium
Main sequence star
4 hydrogens go in and one helium goes out small stars
the sequence of reactions required to convert hydrogen nuclei into helium nuclei
CNO - answer✔nuclear fusion of hydrogen into helium
Main sequence star
large stars use CNO and produce greater energy in the core by
speeding up chemical reaction with faster rate of fusion
Antimatter - answer✔A form of matter that annihilates on contact with normal matter.
Particles and antiparticles of the same type have the same mass but opposite charge
Positron (e+) - answer✔the antimatter version of the electron, having the mass of the electron
but a positive charge
antimatter particle of antimatter
solar granulation - answer✔The pattern of cellular features on the solar surface, showing bright
interiors and dark edges
Neutrino - answer✔An electrically neutral, weakly interacting elementary subatomic particle
often created in nuclear reactions
3|Page
ALL RIGHTS RESERVED.
ERTH 101 Exam 3 Questions With Correct
Answers
Plasma - answer✔electrically charged matter
sun is made of this
Thermonuclear fusion - answer✔The fusion that takes place under high temperature
The joining together of nuclei to form larger nuclei.
Hydrostatic equilibrium - answer✔the condition in which gravity and radiation pressure are
balanced
Radiation Pressure - answer✔the pressure resulting from the impact of photons on a surface or
gas
Differential rotation - answer✔Rotation of different regions of an object (different latitudes or
depths) at different rates
fastest at the equator
slower at the pole
1|Page
, ©BRAINBARTER EXAM SOLUTIONS 2024/2025
ALL RIGHTS RESERVED.
Core - answer✔the central region of a star where high temperatures and high densities allow
thermonuclear fusion reactions to occur, releasing energy
about 10 million K
Radiative Zone - answer✔the region of the sun above the core, where energy is transported
outward by means of electromagnetic radiation (photons scattering off of particles of mass)
Convective Zone - answer✔The region of the sun above the radiative zone, where energy is
transported outward by the means of the motion of gas
makes it all the away to the surface of the sun
Photosphere - answer✔the thin "surface" of the sun, from which radiation escapes into space
Chromosphere - answer✔the lower layer of the suns atmosphere
glowing pink- it is red coming from ionized hydrogen alpha and white from sun
Corona - answer✔the extended region of the extremely hot, low density gas surrounding the
sun
about 1 million K
Strong nuclear force - answer✔One of the four fundamental forces in nature, it binds particles
together the nucleus of an atom
holds the nucleus together
Proton-proton (P-P)
2|Page
, ©BRAINBARTER EXAM SOLUTIONS 2024/2025
ALL RIGHTS RESERVED.
chain - answer✔nuclear fusion of hydrogen into helium
Main sequence star
4 hydrogens go in and one helium goes out small stars
the sequence of reactions required to convert hydrogen nuclei into helium nuclei
CNO - answer✔nuclear fusion of hydrogen into helium
Main sequence star
large stars use CNO and produce greater energy in the core by
speeding up chemical reaction with faster rate of fusion
Antimatter - answer✔A form of matter that annihilates on contact with normal matter.
Particles and antiparticles of the same type have the same mass but opposite charge
Positron (e+) - answer✔the antimatter version of the electron, having the mass of the electron
but a positive charge
antimatter particle of antimatter
solar granulation - answer✔The pattern of cellular features on the solar surface, showing bright
interiors and dark edges
Neutrino - answer✔An electrically neutral, weakly interacting elementary subatomic particle
often created in nuclear reactions
3|Page
