Phsc 121 - Study guides, Class notes & Summaries

PHSC 121 HOMEWORKS (1-4) 1ST EXAM QUESTIONS WITH COMPLETE ANSWERS

PHSC 121 Liberty University Exam 3 Questions With All Complete Answers Questions With All Complete Answers

PHSC 121 Astronomy Exam 1 Definitions Correctly Answered 2024. Scientific method - CORRECT ANSWER 1. Observation 2. Hypothesis - an educated guess from observation to explain the phenomenon 3. Test the Hypothesis - many times! 4. Theory - developed from tested hypothesis 5. Natural Law - a theory tested over much time, many situations Constellation - CORRECT ANSWER pattern formed by the brighter stars in the sky (88 of them) Star - CORRECT ANSWER GREAT BIG BALL O GAS Planet - C...

PHSC 121 HW 2 Practice Study Guide Exam 2024. Tonight you see the Moon at midnight at its highest point in your sky. What is the phase of the Moon? - CORRECT ANSWER Full moon You are located in Knoxville, TN, United States. Your friend is located in Lima, Peru. You see a waning gibbous moon in your clear night sky. What phase, if any, will your friend see if the night sky in Lima is also clear? - CORRECT ANSWER waning gibbous Which has the larger angular diameter in the sky—the Sun ...

PHSC 121 ACTUAL EXAM QUESTIONS WITH ANSWERS GRADED A+ 2025/2026 LIBERTY UNIVERSITY 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 - The frost line is __________ . The inner planets formed by minority rocky substances but the majority substance, hydrogen, could only condense into planets in the outer regions - Why, theoretically, are the inner planets made of rock and the outer p...

Astronomy Chap 5 (Liberty University) (PHSC 121) Review Practice Test 2024. What is the orbital speed at Earth's surface? Ignore atmospheric friction. (Note: Earth's average radius is , Earth's mass is , 6370 km, Earth's mass is 5.97x 10(24) kg, G= 6.67 x 10(-11) m(3)/ kg x s(2) - CORRECT ANSWER 7900 m/s When you ride a fast elevator upward, you feel slightly heavier as the trip begins and slightly lighter as the trip ends. How is this phenomenon related to the equivalence principle?...

Why are most of the constellations that were invented in modern times composed of faint stars or located in the southern sky? 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? The brightest star in a constellation is usually designated as Alpha, the second brightest as Beta, and so on. The star's approximate lo...

PHSC 121-B06 LUO Final Exam Prediction Questions With Correct Answers 2024. How can you determine the relative ages of the Moon's maria and highlands? - CORRECT ANSWER Maria are younger than highlands, because fewer craters are observed on mare surfaces. Why is it not surprising that there is no evidence of plate tectonics on Mercury's surface? - CORRECT ANSWER The crust of Mercury is thick and heat flowing outward is unable to drive plate tectonics. What evidence can you give that ...

PHSC 121 FINAL EXAM QUESTIONS AND ANSWERS SCORED A+

PHSC 121 PRACTICE TEST CORE EXAM QUESTIONS WITH ANSWERS GRADED A+ 2025/2026 LIBERTY UNIVERSITY Which of the following is a problem with the theory that a nebular gas cloud formed the sun and planets? - A contracting, heating gas cloud, would stop collapsing due to the force balance between gravity and internal pressure, making star formation impossible What appears wrong with the present theory concerning the origin of the Earth's oceans? - Comets contain water ice with too much deuteri...