Phsc 121 Study guides, Class notes & Summaries

PHSC 121 Test 2 Questions with All Correct Answers What is the Synodic period? - Answer-Time it takes the moon to orbit though its phases. It last 29.5 days. What is the sidereal period? - Answer-Time it takes the moon to orbit the earth with respect to the stars. It last 27.3 days Synodal and sidereal period for the moon - Answer-The moons synodal day is longer than the sidereal day because the moon has to catch up to the earth motion around the sun. What is earthshine? - Answer-Th...

PHSC 121 Final Exam with Complete Solutions Graded A+ 4 points of the scientific method - Answer-observation, testing, assumption, hypothesis Our solar system consists of ______ and has ___ major planets - Answer-the Sun and all the objects that orbit the Sun / 8 Why isn't Pluto considered a planet? - Answer-It does not dominate its orbit Light from the Sun takes ___ to reach Earth - Answer-8 minutess The Kuiper Belt is located __________________ - Answer-beyond the orbit of Nept...

PHSC 121 Liberty University Exam 3 Questions with All Correct Answers We have seasons because - Answer-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 - Answer-the Sun is now crossing the equator into the northern hemisphere and the northern hemisphere begins to face toward the Sun For someone standing on the Tropic of Cancer, the sun will appear at the observer's zenith ___________ each year and at the...

PHSC 121 FINAL EXAM Questions And Correct Answers New 2024 Update Which ancient culture/country not only kept detailed astronomical records, but also seems to have recorded the story of creation and early man in its very language? - Answer -China Which of these reasons describes why astronomy has been practiced throughout history? - Answer -to understand major world events, to understand weather/climate What is the universe? - Answer -Everything physical that existed Given the size o...

PHSC 121 Exam 3 (HW 8-10) Liberty University Exam Questions All Correctly Answered The earth's axis of rotation is tilted 23.5 degrees relative to the ecliptic - Answer -We have seasons because (text p 32-33) the Sun is now crossing the equator into the northern hemisphere and the northern hemisphere begins to face toward the Sun. - Answer -Which of the following is true of the vernal equinox? Sun is now crossing the equator into the northern hemisphere and the northern hemisphere beg...

PHSC 121 Exam Questions with All Correct Answers Why are most of the constellations that were invented in modern times composed of faint stars or located in the southern sky? - Answer-Faint stars or stars in the southern sky were not visible to early astronomers observing from northern latitudes How does the Greek letter designation of a star give you clues both to its location and its apparent brightness? - Answer-The brightest star in a constellation is usually designated as Alpha, the ...

PHSC 121 Liberty University Exam 3 Questions With All Complete Answers We have seasons because - Answer -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 - Answer -the Sun is now crossing the equator into the northern hemisphere and the northern hemisphere begins to face toward the Sun For someone standing on the Tropic of Cancer, the sun will appear at the observer's zenith ___________ each year and at t...

PHSC 121 Liberty University Exam 3 Correctly Answered 2024. We have seasons because - CORRECT ANSWER 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 ANSWER the Sun is now crossing the equator into the northern hemisphere and the northern hemisphere begins to face toward the Sun For someone standing on the Tropic of Cancer, the sun will appear at the observer's zenith ___________ each year and...

PHSC 121 Hw 8 Exam Questions With All Complete Answers A black hole is - Answer -b. a region in space where mass produces a gravity field so intense that neither matter nor light itself can escape Black hols are thought to be caused by - Answer -a. collapsing stars b. concentrated mass at the center of galaxies Black holes are theorized to be - Answer -b. at the center of galaxies c. at the center of quasars A quasar is - Answer -c. a large remote energy source which may contain a ...