Physics Data Sheet Page 2
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4PHYSICS DATA SHEET
Constants
Pre xes Used with SI Units
Particles
Exponential
Charge
Mass
Acceleration Due to Gravity
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_ ›
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2
Pre x
Symbol
Value
Near Earth .........................
a
= 9.81 m/s
g
–27
Alpha Particle ....................... +2e
6.65 × 10
kg
–11
2
2
–18
N . m
Gravitational Constant ...... G = 6.67 × 10
/kg
atto .............. a ..............10
–31
6
–15
Electron ................................ –1e
9.11 × 10
kg
Radius of Earth ................. r
= 6.37 × 10
m
femto ........... f ..............10
e
24
–12
Mass of Earth .................... M
= 5.97 × 10
kg
pico .............. p ..............10
–27
Proton ................................... +1e
1.67 × 10
kg
e
–19
–9
Elementary Charge ........... e = 1.60 × 10
C
nano ............. n ..............10
–27
Neutron.................................
0
1.67 × 10
kg
9
N . m
2
2
–6
Coulomb’s Law Constant .. k = 8.99 × 10
/C
micro ........... .............10
–19
–3
Electron Volt ..................... 1 eV = 1.60 × 10
J
milli ............. m .............10
First-Generation Fermions
–2
Index of Refraction of Air . n = 1.00
centi ............. c ..............10
Charge
Mass
8
–1
Speed of Light in Vacuum . c = 3.00 × 10
m/s
deci .............. d ..............10
2
Electron ................................ –1e
0.511 MeV/c
–34
J . s
1
Planck’s Constant .............. h = 6.63 × 10
deka ............ da ............10
2
–15
eV . s
Positron ................................ +1e
0.511 MeV/c
h = 4.14 × 10
2
hecto ........... h ..............10
–27
Atomic Mass Unit ............. u = 1.66 × 10
kg
2
3
Electron neutrino, ..............
0
< 50 eV/c
kilo .............. k ..............10
6
mega ........... M ............10
__
2
Electron antineutrino,
.......
0
< 50 eV/c
9
Physics Principles
giga .............. G .............10
Up quark, u ........................... + 2 __
2
~5 MeV/c
*
e
12
tera............... T .............10
3
Uniform motion (balanced forces)
__
u ............. – 2 __
2
Anti-up antiquark,
~5 MeV/c
*
e
Uniformly accelerated motion (unbalanced forces)
3
Down quark, d ...................... – 1 __
Circular motion (unbalanced forces)
2
~10 MeV/c
*
e
3
Work-energy theorem
__
d ........ + 1 __
2
Anti-down antiquark,
~10 MeV/c
*
e
Conservation of momentum
3
* Current models seem to suggest a signi cantly lower
Conservation of energy
mass of these quarks than those in this table.
Conservation of mass-energy
Conservation of charge
Conservation of nucleons
Wave-particle duality
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