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PHSC 121 Test 3 Exam Questions All Solved Exam with 72 questions and answers all answers 100% correct latest update 2024/2025 RATED A+$14.79
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PHSC 121 Test 3 Exam Questions All Solved
Exam with 72questions and answers all
answers 100%correct latest update 2024/2025
RATED A+
We have seasons because? - CORRECT ANSWERS The earth's axis of rotation is tilted
23.5 degrees relative to the ecliptic
Which of the following is true of the vernal equinox? - CORRECT ANSWERS the Sun is
now crossing the equator into the northern hemisphere and the northern hemisphere
begins to face toward the Sun.
Which of the following is NOT true of the winter solstice? - CORRECT ANSWERS the
northern hemisphere receives the most direct sunlight of the year
For someone standing on the Tropic of Cancer, the sun will appear at the observer's zenith
___________ each year and at the equator an observer will see the sun at zenith ___________ -
CORRECT ANSWERS once / twice
Which of the following is most important in creating our seasons today - CORRECT
ANSWERS the angle of the sunlight when it strikes the ground
The Earth is farthest from the Sun in __________ and the Earth - Sun distance varies about
_________ % in a year - CORRECT ANSWERS Jul / 3
Tides on the Earth are caused mostly by _____________ - CORRECT ANSWERS the Moon
because it is closer to the Earth than the Sun
Highest tides occur during which phase of the Moon? - CORRECT ANSWERS New and
Full
How frequently does a spring tide occur? - CORRECT ANSWERS twice each month
, PHSC 121 Test 3 Exam Questions All Solved
Exam with 72questions and answers all
answers 100%correct latest update 2024/2025
RATED A+
The effect of the Sun on Earth tides is about ____________ x the effect of the Moon. Also, water
tidal ranges (height of the tides) can be from about 30 cm to about ____________ meters. -
CORRECT ANSWERS half / 16
Each location on the Earth experiences _____________ high and low tides each 24 hours. The
high tides occur when the Earth location is ____________ - CORRECT ANSWERS 2 / facing
the Moon and then on the opposite side of the Earth from the Moon
A black hole is _____________ - CORRECT ANSWERS a region in space where mass
produces a gravity field so intense that neither matter nor light itself can escape
Black holes are thought to be caused by ____________ - CORRECT ANSWERS a. collapsing
stars
b. concentrated mass at the center of galaxies
A quasar is _____________ - CORRECT ANSWERS a large remote energy source which may
contain a black hole
Quasars are thought to be caused by ______________ - CORRECT ANSWERS high energy
radiation emission from the cores of galaxies
How does the Nebular hypothesis say the Solar System formed? - CORRECT ANSWERS
A large rotating gas cloud existed and compressed into the Sun with the planets forming by
collisions and accretion of rotating masses
The frost line is __________ ? - CORRECT ANSWERS The boundary lying between Mars
and Jupiter, separating the hot interior of the original gas cloud from the cooler outer
regions where hydrogen could condense
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