PHSC 121 Liberty University Exam 3
2024-2025 Edition. All Questions &
Correct Answers. Graded A+
A black hole is - ANSa region in space where mass produces a gravity field
so intense that neither matter nor light itself can escape
A quasar is - ANSa large remote energy source which may contain a black
hole
According to modern theory, the present universe is __________ billion
years old and the Earth / Solar System is approximately ____________
billion years old. - ANS.5
According to our text (ch 22.1 - Particle Creation and Annihilation) the
universe was so hot in the first seconds following the rapid expansion (Big
Bang) that photons were transformed into ____________, and that the
early universe was a "hot and dense blend" of ___________. - ANSmatter /
photons, matter, antimatter
According to our text (ch 22.1), the universe has a faint glow of light that is
not related to present day star light. This light theorized to have been
caused by ______________ and was present ______________ -
ANSremnant heat from the big bang / when light became visible at about
400,000 years age of the universe
, According to the Big Bang theory the building blocks for the universe at the
beginning were - ANShydrogen and helium
According to the Christian Old Earth (4-5 billion years) view, Gen 1:1
describes the creation of everything in the universe, including the stars,
Earth and man - ANStrue
According to the Christian Old Earth (4-5 billion years) view, volcanic
activity is necessary to keep high oxygen levels in the atmosphere and
therefore to sustain human life. - ANStrue
According to the Nebular Cloud Theory of Solar System development, the
Jovian planets began as planetesimals composed mostly of ____________
. The cores grew until ___________ was able to draw in ___________
from the surrounding cloud material. - ANShydrogen with traces of rock and
metal / gravity / hydrogen and helium
According to the Nebular Cloud Theory of Solar System formation, a
spinning cloud formed into the Sun and planets (true statement). According
to lecture, flattening of the cloud from a larger sphere, was caused by
collisions between particles within the cloud which reduced random and up
and down motions - ANStrue
Black holes are thought to be caused by - ANScollapsing stars
concentrated mass at the center of galaxies
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