Exam (elaborations)
PHYSICS 143 Exam 1 Questions And Answers Latest Update
- Course
- PHYS 143
- Institution
- University Of Illinois - Urbana-Champaign
PHYSICS 143 Exam 1 Questions And Answers Latest Update
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PHYSICS 143 Exam 1 QuestionsAnd Answers Latest Update
Energy Basics ANS✔✔ Power is energy over time
w=f*d
KE (equation for Kinetic Energy) ANS✔✔ 1/2 x mass x velocity²
PE(equation potential energy) ANS✔✔ mg or mgh
How is oil formed ANS✔✔ -starts as plankton
-water oxygenated
-abundant bottom dwelling scavengers
-bio productivity Alge bloom
-organic matter preserved in sediments
-burial of organic matter in rock
10-150 million years
-oil created.
how is gas formed ANS✔✔ from organic material mainly deposited as
sediments on the seabed and then broken down and transformed over millions
of years.
, petroleum refining process ANS✔✔ a process in which a liquid or vapor
mixer of two or more substances is separated into its component fractions of
desired purity, by application of removal of heat. (distillation)
How is natural gas formed? ANS✔✔ A gaseous mixture of naturally
occurring hydrocarbons
Primarily methane: 80-95%
Ethane: C2H6
Same origins as oil
Less costly source
Least polluting of the three major fossil fuels
Coal Formation ANS✔✔ Coal deposits come from Carboniferous period (320
million years ago)
As the plants died, formed peat
These layers were typically sandwiched between layers of sediment like shale
Time, pressure, and temperature converted the plant material to coal
types of coal ANS✔✔ anthracite(86 and 98%), bituminous(45-86)*,
subbituminous(35-45), lignite(25-35)
shale oil ANS✔✔ Contains an organic substance called kerogen
Shale oil results from condensing vapors that can be refined to produce
gasoline, fuel, oil. (expensive)
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