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Contents Mathematics Fermat Physics Wordlist Notes Chemistry Quick Facts Reference LINKS

Reference Section - Physics

Air at rtp:
Water at rtp:
Earth:


Physical constants:


The Solar System:
Body Orbital radius / m Body radius / m Mass / kg
Sun - 6.96 x 108 1.99 x 1030
Mercury 5.79 x 1010 2.42 x 106 3.35 x 1023
Venus 1.08 x 1011 6.10 x 106 4.89 x 1024
Earth 1.50 x 1011 6.37 x 106 5.97 x 1024
Mars 2.28 x 1011 3.38 x 106 6.46 x 1023
Jupiter 7.78 x 1011 7.13 x 107 1.90 x 1023
Saturn 1.43 x 1012 6.04 x 107 5.69 x 1026
Moon 3.84 x 108 1.74 x 106 7.35 x 1022

Units:
Quantity Unit Base units Common units
Capacitance farad, F kg -1 m -2 s4 A2 C / V
Electric charge, q Coulomb, C sA -
Electric field, E - kg m2 s -3 A -2 N / C or V / m
Electric potential, V and emf Volt, V kg m2 s -3 A -1 J / C or W / A
Electric resistance, R ohm kg m2 s -3 A -2 V / A
Energy, E Joule, J kg m2 / s2 Nm
Force newton, N kg m / s2 -
Frequency, f hertz, Hz s -1 -
Magnetic field tesla, T kg s -2 A -1 Wb / m2
Magnetic flux weber, Wb kg m2 s-2 A -1 Vs
Power, P watt, W kg m2 / s3 J / s
Pressure, p pascal, Pa kg m -1 s -2 N / m2 or J / m3

Conversions

Length: Area: Volume: Volume rate: Pressure: Mass: Density: Temperature: Converting temperatures: Force: Velocity: Acceleration: Time: Energy: Specific energy: Specific heat capacity:

Specific gravity = density of substance / density of water, as a ratio

Power:


Useful trigonometry:

pi = 3.14159
e = 2.71828
1 rad = 57.2958o
ln 2 = 0.693147
1n 10 = 2.30259
sin 0 = 0
cos 0 = 1
tan 0 = 0
sin 30o = 1/2
cos 30o = rt3 / 2
tan 30 = 1 / rt3
30o = (pi / 6) rad
sin 45o = rt2 / 2 = cos 45o
tan 45o = 1 = sin 90o
45o = (pi / 4) c
sin 60o = rt3 / 2
cos 60o = 1 / 2
tan 60o = rt3
60o = (pi / 3) c
cos 90o = 0
tan 90o = inf
90o = (pi / 2 )c


Contents Mathematics Fermat Physics Wordlist Notes Chemistry Quick Facts Reference LINKS