Phsc - Study guides, Class notes & Summaries

PHSC 121 Exam 3 Questions And Correct Answers We have seasons because... a. The earth's axis of rotation is tilted 23.5 degrees relative to the ecliptic b. the earth's axis faces the north pole toward the sun when the earth is closest to the sun, in Jan. c. The earth-sun distance decreases to a min in July - Answer -a Which is true of the vernal equinox? a. latitudes south of the Antarctic Circle see no sun for 24 hours b. The Sun is now crossing the equator into the north hemis...

PHSC 121 FINAL EXAM QUESTIONS AND ANSWERS GRADED A+ 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 of the univers...

PHSCS 121 Final Exam Questions with Correct Answers a driver who is protected by an air bag during a head-on collision is less likely to be seriously injured than an unprotected driver. this is because the airbag - Answer-increases the time interval over which the impulse is experienced 9cm a bullet moving horizontally strikes and sticks in a block of wood that is free to move on the horizontal, level, frictionless surface. the block has a much greater mass than the bullet. what become...

LSUA PHSC 1001- Parvez Final Exam questions and answer

PHSC 1033 Final Exam BRCC Questions and Answers All Correct Which of the following Group 1A elements has the largest atom? Li Rb Na K - Answer-Rb What is the preferred name for Mg3N2? - Answer-Magnesium nitride Which group is the nearest neighbor to the noble gases in the periodic table? - Answer-Halogens Which of the following is a symbol for an alkaline earth metal? Li Na Au Mg - Answer-Mg Which science deals with the composition, structure, properties, and reaction...

LSUA PHSC 1001 Test 2 Rolfes questions and answers complete update

PHSC 102 Life in the Universe Exam Questions with Correct Answers Which of the following appears most favored by natural selection? A. intelligence B. bipedal locomotion C. opposable thumbs D. live birth E. binocular vision - Answer-A. intelligence What important molecules of life did Miller and Urey brew up? A. amino acids B. fatty acids C. RNA D. antacids E. lean acids - Answer-A. amino acids Organic molecules are: A. not found outside our solar system. B. silicon-bas...

PHSC 121 Test 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. Which of the following is NOT true of the winter solstice? - Answer-the northern hemisphere receives the most direct sunlight of the year ...

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 1033 Exam 3 Pretest Questions with Correct Answers Compounds that have the same molecular formula but different structural formulas are called structural, or constitutional, A) isomers. B) derivatives. C) congeners. D) isotopes. E) progeners. - Answer-A) isomers. Organic chemistry studies chemical compounds that contain at least one atom of A) nitrogen. B) oxygen. C) carbon. D) hydrogen. E) silicon. - Answer-C) Carbon Which atoms normally have 3 covalent bonds to it? A)...