Physical Geology Syllabis

To him who in love of Nature
Holds communion with her various forms,
She speaks a various language

- William Cullen Bryant

The hypothesis which we accept ought to explain phenomena which we have observed, but it ought to do more than this: our hypothesis ought to foretell phenomena which have not been observed.

- William Whewell

Concepts: (continued from previous lecture)
work - Joules
energy - Joules
kinetic
potential
power - Watts

Sources of Energy

Kinetic
Water
Tides
Wind
Potential
Fossil fuel (oil, coal, natural gas)
Nuclear

suggested problems,

p. 61, group A, #1-6 except 5, (2nd edition text)
p. 67, group A, #1-6 except 5, (3rd edition text)

Summary of units used so far

You need to know these!
variable abbrev. unit formula
Distance d m (meter)
Mass m kg (kilogram)
Time t s (second)
Velocity v m/s d/t
Acceleration a m/s2 change in d/change in t2
Force F N (Newton) = kg m/s2 F=ma
Momentum p kg m/s mv
Force F N (Newton) = kg m/s2 F=mv2 / r
(centripetal) r = radius
Gravity F (force) N G*m1*m2/d2
G = gravitational constant
Work Joules J (N*m = kg m2/s2) J = F * d
Power watt = J / s Power = work/time
Energy E Joule Energy = Power * time

Useful links:
Energy Information Administration
Energy Production by Source
Energy Consumption by Source


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