SCI-TEST EXAM QUESTIONS AND ANSWERS LATEST
UPDATE
what are the limitations of stellar parallax
as stars get further away, the angle we measure gets smaller making it harder to
measure, meaning that the error is higher
Life cycle of stars (black dwarf)
Nebula (a dense region in nebula begins to shrink, warm up and become a protostar)
main-sequence star (star shines as nuclear reactions inside produce light and heat)
red giant (star of less mass expands and glows red as it cools)
planetary nebula (outer layers of gas puff off)
White dwarf (hot core is exposed)
white dwarf cooling (star cools and reddens)
black dwarf (star stops glowing)
life cycle of stars (black hole)
Nebula (a dense region in nebula begins to shrink, warm up and become a protostar)
main-sequence star (star shines as nuclear reactions inside produce light and heat)
SUPER GIANT (star of greater mass expands, cools and turns red due to heavier
elements
SUPER NOVA (super giant EXPLODES, bursting away outer layer)
neutron and pulsar star (core collapses and becomes very dense)
or
Black hole (core completely collapses and vanishes creating gravity so high that not
even light can escape it
big bang time line
inflation
quark era
laws of physics are created
hadron and lepton era
UPDATE
what are the limitations of stellar parallax
as stars get further away, the angle we measure gets smaller making it harder to
measure, meaning that the error is higher
Life cycle of stars (black dwarf)
Nebula (a dense region in nebula begins to shrink, warm up and become a protostar)
main-sequence star (star shines as nuclear reactions inside produce light and heat)
red giant (star of less mass expands and glows red as it cools)
planetary nebula (outer layers of gas puff off)
White dwarf (hot core is exposed)
white dwarf cooling (star cools and reddens)
black dwarf (star stops glowing)
life cycle of stars (black hole)
Nebula (a dense region in nebula begins to shrink, warm up and become a protostar)
main-sequence star (star shines as nuclear reactions inside produce light and heat)
SUPER GIANT (star of greater mass expands, cools and turns red due to heavier
elements
SUPER NOVA (super giant EXPLODES, bursting away outer layer)
neutron and pulsar star (core collapses and becomes very dense)
or
Black hole (core completely collapses and vanishes creating gravity so high that not
even light can escape it
big bang time line
inflation
quark era
laws of physics are created
hadron and lepton era
