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ILS 2012 Solar Syste

QuestionAnswer
Sun’s energy from nuclear fusion in the core, fueled by hydrogen
Sun over time decrease hydrogen, increase helium
Sun’s forces gravity and thermal pushed are balanced (equilibrium)
Light years measures distance between the stars
Star classification color, size, absolute brightness
Star brightness varies with viewing position
Star life cycle starts with nebula
Sun – last 5 billion years, end as a white dwarf
Red giant used all hydrogen, start to fuse helium, upper right of HR diagram
White Dwarfs formed by low and medium mass stars, forms after red giant
HR Diagram graphs stars by temperature and absolute brightness, be able to use diagram
Main Sequence diagonal band in which most stars are found in HR diagram
Main sequence star lifetime depends on star’s mass
Pulsar spinning neutron star emitting radio waves
Red shift galaxy moving away
Doppler Effect apparent change in frequency and wavelength of a sound or light as it moves
Hubble’s Law speed is proportional to distance from Earth
Big Bang Theory origin of the universe, red shift and cosmic microwave background radiation provide support
Heliocentric sun centered
Geocentric Earth centered, objects appear to circle Earth
Motion around sun caused by inertia and gravity
Nebular Theory involves protoplanets, colliding planetesimals, and a large thin cloud of dust and gas, sun contains most mass
Theories never proven
Solar prominence stream of electrically charged particles that loops back into the sun
Convection zone outside of sun’s core
Spectral Type Table complete
Created by: evroman
Popular Physical Science sets

 



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