Index


A
absolute pressure         678
absolute zero         669
    and entropy     738
absorption
    of waves     425
AC (alternating current)         503
acceleration
    g-force     106
    as rate of change in velocity     111
    calculating in problems     112
    centripetal     211
    constant     109
    definition of     108
    equation for     108
    equation for position     115
    graphical model for constant     109
    graphical model of constant     116
    in free fall     122
    interactive simulation     116
    of a car     108
    on motion graphs     109
    sign of     111
    the meaning of     110
    vector     181
accommodation, in the eye         627
accuracy         48
action–reaction         147
active noise cancellation         464
additive color model (RGB)         24
adiabatic process         745
aerospace engineering         683
agriculture and energy         269
air
    density     43
air bags         306
air resistance
    causes of     159
    in free fall     125
airfoil         683
algebra         61
    solving equations     62
alkaline battery         479
alpha decay         802
alpha particles         758
Alpher, Ralph         17
Altaeros Energies—wind turbines         356
alternating current (AC)         503
aluminum
    specific heat     674
Alvarez, Luis         17
Alvarez, Walter         17
AM (amplitude modulation) in radio         658
americium         809
ammeter         484
ampere, or amp (A)         474
    unit of electric current     266
amplitude
    definition of     394
    of a wave     414
    of sound waves     444
anecdotal evidence         25
angle of incidence         596
    in refraction     612
angle of reflection         596
angle of refraction         612
angular momentum         366
angular velocity
    definition of     208
    sign of     208
Annus mirabilis (year of miracles)         2
Anthony, Susan B.         332
anti-lock brakes system (ABS)         291
antimatter         818
antineutrino         761
antinodes         459
antiquarks         818
architecture and physics         271
area
    on velocity vs. time graph     83
    surface     43
Aristotle
    four elements     44
armature, of an electric motor         557
Asimov, Isaac         754
asteroid
    near-Earth     17
asteroid impact theory         17
astigmatism         628
Aswan High Dam         293
atmospheric carbon dioxide         700
atmospheric heat transfer         716
atom
    concept of     9
    number in one gram of hydrogen      670
    structure of     756
atomic mass unit         796
atomic number         757
average         15
average thermal speed         687
average velocity         84

862Previous Page Next Page