TwoOldGuys™ Study Guides
BI-122 Biology
Physical Basis of Life

basic Physics

General characteristics of the Universe:


MATTER

Atomic structure

MATTER
substances compounds molecules
sub-molecular elements atoms
sub-atomic electrons m = 0 amu, chrg = -1
protons m = 1 amu, chrg = +1
neutrons m = 1 amu, chrg = 0

states of matter

STATES OF MATTER
state volume shape other
plasma variable variable emits light
gas variable variable
liquid constant variable
plastic constant constant moldable
solid constant constant crystaline




ENERGY

The 2nd Law of Thermodynamics

When Energy is changed from one form to another,

Life is highly ordered, which is against the Laws of Physics

ENERGY
type example
kinetic motion
potential stored
position
chemical
mechanical
heat



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revised 19 aug 2006