Annotation of loncom/homework/capa.units, revision 1.17
1.5 albertel 1: # The LearningOnline Network with CAPA
2: # Physical Unit definitions
3: #
1.17 ! www 4: # $Id: capa.units,v 1.16 2008/03/06 01:54:16 www Exp $
1.5 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.1 albertel 28: #
29: # ======================= Unit section =============
30: # Base Unit
31: # name symbol comment
32:
33: << Base Unit >>
34:
35: meter m # length
36: kilogram kg # mass
37: second s # time
38: ampere A # electric current
39: kelvin K # thermodynamic temperature
40: mole mol # amount of substance
41: candela cd # luminous intensity
1.6 albertel 42: decibel dB # log of pressure amplitude
1.1 albertel 43:
44: # Prefix symbol factor
45: << Prefix >>
46:
47: yotta Y 10^{24}
48: zetta Z 10^{21}
49: exa E 10^{18}
50: peta P 10^{15}
51: tera T 10^{12}
52: giga G 10^9
53: mega M 10^6
54: kilo k 10^3
55: hecto h 10^2
1.11 albertel 56: deca D 10^1
1.1 albertel 57:
58: deci d 10^-1
59: centi c 10^-2
60: milli m 10^-3
61: micro u 10^-6
62: nano n 10^-9
63: pico p 10^{-12}
64: femto f 10^{-15}
65: atto a 10^{-18}
66: zepto z 10^{-21}
67: yocto y 10^{-24}
68:
69:
70:
71:
72: # Derived Unit
73: # name symbol unit comment
74: # name must be in oneword
75: <<Derived Unit>>
76:
77: gram g 0.001 kg # mass
1.12 albertel 78: minute min 60 s # time
79: hour hr 3600. s # time
80: hour h 3600. s # time
1.3 albertel 81: day day 24.0 hr # time
1.9 albertel 82: day days 24.0 hr # time
1.3 albertel 83: year yr 365.24 day # time
1.1 albertel 84: pound lb 0.45359237 kg # mass
1.7 albertel 85: ounce oz 2.83495E-2 kg # mass
1.1 albertel 86: inch in 2.54 cm # length
87: foot ft 12 in # length
88: mile mi 5280 ft # length
89: yard yd 0.9144 m # length
90: nautical_mile n_mi 6080 ft # length, nautical mile (UK)
91: rood rood 1210 yd^2 # area, rood
92: acre acre 4840 yd^2 # area, acre
93: hertz Hz 1/s # frequency
1.2 albertel 94: litre L 10^3*cm^3 # volume
1.1 albertel 95: newton N m*kg/s^2 # force
96: pound_force lbf 4.44822 N # force
97: dyne dyn 1E-5 N # force
98: pascal Pa N/m^2 # pressure, stress
99: bar bar 1E5 Pa # pressure
100: mmHg mmHg 1.33322E2 Pa # pressure, millimeter of mercury
101: torr torr 1 mmHg # pressure
102: atm atm 760 torr # standard atmosphere
103: joule J N*m # energy, work, heat
104: electronvolt eV 1.6021892E-19 J # energy
105: calorie cal 4.1868 J # energy
106: Btu Btu 1.05506E3 J # energy
107: watt W J/s # power, radiant flux
108: coulomb C A*s # electric charge
109: volt V J/C # electric potential, electromotive force
110: ohm ohm V/A # electric resistance, use this in /ANS
111: ohm ohms V/A # electric resistance
112: ohm Ohm V/A # electric resistance
113: ohm Ohms V/A # electric resistance
1.10 albertel 114: mho mho 1/ohm # electric conductance
115: mho mhos 1/ohm # electric conductance
116: mho Mho 1/ohm # electric conductance
117: mho Mhos 1/ohm # electric conductance
1.1 albertel 118: siemens S 1/Ohm # electric conductance
119: farad F C/V # electric capacitance
120: tesla T V*s/m^2 # magnetic flux density
121: weber Wb V*s # magnetic flux
122: henry H V*s/A # inductance
123: radian rad m/m # plane angle
124: degree deg 1.745329E-2 rad # plane angle (Pi rad=180 deg)
125: steradian sr m^2 /m^2 # solid angle
126: lumen lm cd*sr # luminous flux
127: lux lx cd*sr/m^2 # illuminance
128: becquerel Bq 1/s # activity (radioactive)
1.15 albertel 129: curie Ci 3.70E10 Bq # activity (radioactive)
1.1 albertel 130: gray Gy J/kg # absorbed dose (of radiation)
131: sievert Sv J/kg # dose equivalent (dose equivalent index)
132: astroUnit AU 1.49598E11 m # mean distance earth to sun
1.4 albertel 133: celcius degC 1 K # multiplicatively OK
1.17 ! www 134: fahrenheit degF 0.555555555 K # multiplicatively OK
1.8 albertel 135: molarity M mol/L # chemisty
1.13 albertel 136: amu amu 1.66053873e-27 kg # atomic mass unit
1.14 albertel 137: amu u 1.66053873e-27 kg # atomic mass unit
1.16 www 138: lightspeed c 299792458 m/s # speed of light
139: cubiccentimeter cc cm^3 # cubic centimeter
140: electroncharge e 1.6021892E-19 C # elementary charge
141: hbar hbar 1.05457148E-34 m^2*kg/s # Planck constant
142: milesperhour mph 0.44704 m/s # miles per hour
143: rpm rpm 0.0166666667/s # rounds per minute
144: rpm rpms 0.0166666667/s # rounds per minute
145: parsec pc 3.08568025E16 m # parsec
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