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what caused the sun to form from an interstellar gas and dust cloud?
Gravity
after the sun formed, what did the planets form from and how did it happen?
The planets formed from the left over material that did not become part of the Sun.
how are the following regions of space related: galaxy,earth,univers,solar systems
Earth is part of the Solar System, the Solar System is part of the Galaxy, and the Milky Way Galaxy is part of the Universe.
what is the process of nuclear fusion?
Nuclear fusion occurs when the temperature and pressure are great enough to force smaller atoms to fuse into larger/heavier atoms.
what stage in stellar evelution occurs when elements heavier than iron are produced?
Supernova
what are the different types of galaxies?
Spiral-Milky Way is an example, Elliptical, and Irregular
define galaxy
galaxy. Billions of stars bound together by gravity.
what will magnetic storms cause in our atmosphere?
Aurora Borealis
what can the solar wind do to the atmospheres of the inner planets?
Solar wind can strip away the atmospheric gases leaving a planet with none/very little atmosphere.
what is the solar wind?
Solar wind are charged particles emitted by solar flare eruptions that are ! ! released from the corona.
what are the most explosive eruptions on the sun called?
Solar flares
solar flares can cause what phenomenon in our atmosphere?
Aurora Borealis
the energy the sun expels into space is caused by what process?
Nuclear fusion of Hydrogen into Helium.
what is the sun spot cycle?
The amount of sun spots vary from a maximum to a minimum every 11 years.
if galaxies are showing a blue shift what does that mean?red shift?
Blue shift means the wavelengths are getting shorter, so the object is moving toward us. Red shift means the wavelengths are getting longer, so the object is moving away from us.
what group of stars have low tempatures and low luminosities?
Red Dwarfs
how do the massive main sequence star compare to the smaller main sequence stars in terms of tempature?
The massive main sequence stars are much hotter and more luminous.
what is the shift in wavelength of light emiited by a moving light source known as?
Doppler Effect
what stage of our life is our sun currently experiencing?
Main Sequence
what is the primary evidence for the big bang theory?
Most objects in space have Red shift, which means they are all moving away from each other.
after a supernova what are the 2 stages that a massive star might change into?
The stars with the most mass left over would form Black Holes. Stars with less mass would form a Neutron Star.
what stage has helium being used as fuel that than expands the outer shell of planet?
Red Giant/Supergiant
would a red shift or blue shift of a distant galaxies indicate that the universe is expanding?
Red Shift
what is cosmic background radiation and how doe it support the big bang?
It is left over energy from the initial expanse of the universe. It is everywhere in space.
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