Physics Reference Tables * Contents: Table A. Metric Prefixes ................................................................................................................................................................... 1 Table B. Physical Constants .............................................................................................................................................................. 2 Table C. Approximate Coëfficients of Friction ................................................................................................................................. 2 Table D. Quantities, Variables and Units.......................................................................................................................................... 3 Table E. Mechanics Formulas and Equations ................................................................................................................................... 4 Table F. Heat and Thermal Physics Formulas and Equations ........................................................................................................... 5 Table G. Thermal Properties of Selected Materials ......................................................................................................................... 5 Table H. Electricity Formulas & Equations ....................................................................................................................................... 6 Table I. Electricity & Magnetism Formulas & Equations .................................................................................................................. 7 Table J. Resistor Color Code ............................................................................................................................................................. 7 Table K. Symbols Used in Electrical Circuit Diagrams ....................................................................................................................... 7 Table L. Resistivities at 20°C ............................................................................................................................................................. 7 Table M. Waves & Optics ................................................................................................................................................................. 8 Figure N. The Electcromagnetic Spectrum ....................................................................................................................................... 8 Table O. Properties of Water and Air ............................................................................................................................................... 9 Table P. Absolute Indices of Refraction ........................................................................................................................................... 9 Table Q. Fluid Mechanics Formulas and Equations ........................................................................................................................ 10 Table R. Planetary Data .................................................................................................................................................................. 10 Table S. Sun & Moon Data ............................................................................................................................................................ 10 Table T. Atomic & Particle Physics (Modern Physics) .................................................................................................................... 11 Figure U. Quantum Energy Levels .................................................................................................................................................. 11 Figure V. Particle Sizes ................................................................................................................................................................... 12 Table W. The Standard Model ....................................................................................................................................................... 12 Table X. Geometry & Trigonometry Formulas ............................................................................................................................... 13 Table Y. Values of Trigonometric Functions ................................................................................................................................... 14 Table Z. Some Exact and Approximate Conversions ...................................................................................................................... 15 Table A. Metric Prefixes Factor 1 000 000 000 000 000 000 000 000 1 000 000 000 000 000 000 000 1 000 000 000 000 000 000 1 000 000 000 000 000 1 000 000 000 000 1 000 000 000 1 000 000 1 000 100 10 1 0.1 0.01 0.001 0.000 001 0.000 000 001 0.000 000 000 001 0.000 000 000 000 001 0.000 000 000 000 000 001 0.000 000 000 000 000 000 001 0.000 000 000 000 000 000 000 001 * 24 10 21 10 18 10 15 10 12 10 9 10 6 10 3 10 2 10 1 10 0 10 −1 10 −2 10 −3 10 −6 10 −9 10 −12 10 −15 10 −18 10 −21 10 −24 10 Prefix yotta zeta exa peta tera giga mega kilo hecto deca — deci centi milli micro nano pico femto atto zepto yocto Symbol Y Z E P T G M k h da — d c m μ n p f a z y Data from various sources, including: The University of the State of New York, The State Education Department. Albany, NY, Reference Tables for Physical Setting/Physics, 2006 Edition.http://www.p12.nysed.gov/apda/reftable/physics-rt/physics06tbl.pdf, SparkNotes: SAT Physics website. http://www.sparknotes.com/testprep/books/sat2/physics/, and College Board: Equations and Constants for AP Physics 1 and AP Physics 2. Physics Reference Tables Page 2 Table B. Physical Constants Description Symbol Common Approximation Precise Value 6.673 84(80) 1011 6.67 1011 Nm2 kg 2 Nm2 kg 2 universal gravitational constant G acceleration due to gravity at sea level g 9.806 65 m2 acceleration due to gravity on Earth’s surface g 9.7639 m2 to 9.8337 m2 speed of light in a vacuum c 299 792 458 ms charge of a proton or electron e 1.602176 565(35) 1019 C 1.6 1019 C 6.241 509 65(16) 1018 elementary charges 6.24 1018 elementary charges o (magnetic) permeability of a vacuum o electrostatic constant k 8.854 187 82 10-12 * 1 universal mass unit (u) 9.8 m s2 m s A2 s4 kgm3 1.26 106 Tm A Nm2 * C2 8.99 109 Tm A Nm2 C2 1.602176 565(35) 1019 J 1.6 1019 J 6.626 069 57(29) 1034 J s 6.6 1034 J s 931.494 061(21) MeV/ c2 931MeV/c2 6.02214129(27) 1023 mol 1 6.02 1023 mol1 Avogadro’s constant NA Boltzmann constant kB 1.380 6488(13) 1023 universal gas constant R J 8.314 4621(75) mol K 1.38 1023 J K J K J 8.31 mol K * standard atmospheric pressure at sea level m s2 8.85 1012 A2 s4 kgm3 1 8.987 551 787 368 176 4 109 4 o h 9.8 3.00 108 4 107 1.256 637 06 10-6 1 electron volt (eV) Planck’s constant s s 1 coulomb (C) (electric) permittivity of a vacuum * s 101 325 Pa ≡ 1.01325 bar 100 000 Pa ≡ 1.0 bar rest mass of an electron me 9.109 38215(45) 1031 kg 9.11 1031 kg mass of a proton mp 1.672621777(74) 1027 kg 1.67 1027 kg mass of a neutron mn 1.674 927351(74) 1027 kg 1.67 1027 kg * denotes an exact value (by definition) Table C. Approximate Coëfficients of Friction Substance rubber on concrete (dry) rubber on concrete (wet) rubber on asphalt (dry) rubber on asphalt (wet) Static (μs) Kinetic (μk) Static (μs) Kinetic (μk) 0.90 0.68 0.58 0.67 0.53 wood on wood (dry) wood on wood (wet) wood on metal wood on brick 0.42 0.2 0.3 0.6 0.30 0.15 wood on concrete 0.62 0.85 rubber on ice Substance steel on ice waxed ski on snow 0.03 0.14 0.01 0.05 Teflon on Teflon Teflon on steel 0.04 0.04 aluminum on aluminum 1.2 1.4 graphite on steel 0.1 cast iron on cast iron steel on steel copper on steel 1.1 0.74 0.53 0.15 0.57 0.36 leather on wood leather on metal (dry) leather on metal (wet) 0.3–0.4 0.6 0.4 diamond on diamond diamond on metal 0.1 0.1–0.15 glass on glass metal on glass 0.9–1.0 0.5–0.7 0.04 0.04 0.4 Physics Reference Tables Table D. Quantities, Variables and Units Quantity distance/displacement, (length, height) angle area volume time velocity speed of light Page 3 Variable d , d , ( , h) θ A V t v c acceleration due to gravity ω a g mass m force F pressure angular velocity acceleration MKS Unit Name MKS Unit Symbol S.I. Base Unit meter* m m radian, degree square meter cubic meter, liter second* —, ° 2 m 3 m , ,L s — 2 m 3 m s meter/second m s m s radians/second 1 s 1 s 2 m s2 m s2 meter/second kg kg newton N kgm s2 P pascal Pa kg ms 2 energy potential energy heat E U Q joule J kgm 2 s2 work W newton-meter N∙m kgm 2 s2 torque τ newton-meter N∙m kgm 2 s2 power P watt W momentum p J kgm 2 s3 newton-second N∙s kgm s 2 kg∙m impulse moment of inertia I angular momentum L frequency wavelength period index of refraction f λ T n kilogram* kilogram-meter newton-metersecond hertz meter second — 2 kg∙m N∙m∙s kgm2 s Hz m s — s m s — ampere* A A C A∙s 2 −1 electric current I electric charge potential difference (voltage) electromotive force (emf) q V ε coulomb volt V kgm 2 As 3 electrical resistance R ohm Ω kg m2 A 2 s 3 capacitance C farad F A2 s4 m2 kg electric field E netwon/coulomb volt/meter N,V C m kgm As 3 magnetic field B tesla T kg As 2 temperature amount of substance luminous intensity T n Iv kelvin* mole* candela* K mol cd K mol cd * S.I. base unit Physics Reference Tables Page 4 Table E. Mechanics Formulas and Equations Kinematics (Distance, Velocity & Acceleration) d s s so d s v o v v t t 2 v v vo at s so d vot 21 at 2 v 2 v o2 2ad Forces & Dynamics F Fnet Fg a g m m m Gm1m2 Fg r2 F f s FN F f k FN T 2 x cm 1 f mi x i mi Fs k x m Ts 2 k Circular and Simple Harmonic Motion L Tp 2 g Us 12 kx2 v2 ω2 r r 0 ω0t 12 α t 2 ac mv 2 Fc mac r τ r F rF sin rF Momentum Energy, Work & Power change, difference sum d distance (m) d displaceme nt (m) s position (m) t time (s) v velocity ms v average velocity ms a accelerati on m2 s f frequency Hz 1s a c centripeta l accelerati on F force (N) F f force due to friction (N) Fg force due to gravity (N) m s2 FN normal force (N) Fc centripeta l force (N) m mass (kg) g acceler ation due to gravity m s2 2 G gravitatio nal constant Nm2 kg r radius (m) r radius (vector) coefficien t of friction (dimensionless) θ angle (, rad) angular velocity rad τ τ net s α N I I k spring constant m p mv x displaceme nt of spring (m) mi vi m f v f L length of pendulum (m) J p Fnet t τ torque (N m) L r p Iω L rp sin I K kinetic energy (J) U potential energy (J) L τ t h height (m) W F d Fd cos Flld Gm1 m2 Q heat (J) Ug mgh r P power (W) 2 p W work (N m) K 12 mv 2 2m T (time) period (Hz) K 12 I 2 p momentum (N s) Etotal U Ek Q J impulse (N s) W K U L angular momentum (N m s) W P t Physics Reference Tables Page 5 Table F. Heat and Thermal Physics Formulas and Equations Temperature change F Fahrenheit temperatur e (F) C Celsius temperatur e (C) K Kelvin temperatur e (K) Q heat (J, kJ) m mass (kg) F 1.8(C) 32 K C 273.15 Q m C T Qmelt m H fus Qboil m Hvap Heat C p Cv R C specific heat capacity L Li T V Vi T T temperatur e (K) t time (s) L length (m) V1 V2 T1 T2 Q T kA t L Q 1 AT t Ri kJ (C p const. pressure; Cv const. volume) kg C k coëfficien t of thermal conductivi ty msJC , mWC V volume (m3 ) linear coëfficien t of thermal expansion (C-1 ) volumetric coëfficien t of thermal expansion (C-1 ) Ri "R" value of insulation U Q W 3 K kBT 2 W PV Thermodynamics R gas constant molJK U internal energy (J) W work (N m) Table G. Thermal Properties of Selected Materials Substance air (gas) aluminum (solid) Melting Boiling Point Point (°C) (°C) Heat of Fusion ΔH fus Heat of Vaporization Specific Heat Thermal Capacity Conductivity Cp kJ kg C k msJC Coefficients of Expansion at 20°C ΔHvap Linear Volumetric kJ kg at 25°C at 25°C α (C -1 ) β (C -1 ) — 395 — 10460 1.012 0.897 0.024 250 — — kJ kg — 659 — 2467 ammonia (gas) −75 −33.3 339 1369 4.7 0.024 argon (gas) carbon dioxide (gas) −189 −186 29.5 161 0.520 0.839 0.016 0.0146 — — copper (solid) 1086 1187 134 5063 0.385 401 1.7 105 5.1 105 5 −78 574 5 2.3 10 — 6.9 105 — — — brass (solid) diamond (solid) — 3550 — 4827 — 10 000 — 30 000 0.380 0.509 120 2200 1.9 10 1 10 6 5.6 105 3 106 ethanol (liquid) −117 78 104 858 2.44 0.171 2.5 104 7.5 104 glass (solid) gold (solid) — 1063 — 2660 — 64.4 — 1577 0.84 0.129 0.96–1.05 310 8.5 106 1.4 105 2.55 105 4.2 105 granite (solid) 1240 — — — 0.790 1.7–4.0 helium (gas) hydrogen (gas) — −259 −269 −253 — 58.6 21 452 5.193 14.30 0.142 0.168 — — — — iron (solid) 1535 2750 289 6360 0.450 80 1.18 105 lead (solid) mercury (liquid) paraffin wax (solid) silver (solid) 327 −39 1750 357 24.7 11.3 870 293 0.160 0.140 35 8 46–68 ~300 ~210 — 2.5 0.25 962 2212 111 2360 0.233 429 2.080 0.016 4.181 0.58 2.11 2.18 steam (gas) @ 100°C water (liq.) @ 25°C ice (solid) @ −10°C — 0 100 334 2260 — 5 3.33 105 2.9 10 6.1 105 — 8.7 105 1.82 104 — 1.8 105 — 5.4 105 — 6.9 105 — 2.07 104 — Physics Reference Tables Page 6 Table H. Electricity Formulas & Equations k q1 q 2 1 q1q2 Fe 2 4 o r 2 r Electrostatic Charges & Electric Fields Fe Q E q oA E 1 q 4 o r W q E d qEd cos W 1 q V E d q 4 o r UE qV I UE V r kq1q2 r Q V t R P I ΔV I 2 R V2 R W QH P t V I t I 2 R t Circuits 2 R V 2t R A Q V C C k o Ucapacitor A d 1 Q(V ) 1 C (V )2 2 2 I I1 I2 I 3 V Vi V1 V2 V3 Series Circuits Req Ri R1 R2 R3 1 1 1 1 1 C total C i C1 C2 C 3 Ptotal Pi P1 P2 P3 I I i I1 I 2 I 3 V V1 V2 V3 Parallel Circuits 1 1 1 1 1 Req Ri R1 R2 R3 C total C i C 1 C 2 C 3 Ptotal Pi P1 P2 P3 change Fe force due to electric field (N) k electrosta tic constant Nm2 C2 q point charge (C) Q charge (C) E electric field NC , mV V voltage electric potential difference (V) W work (N m) d distance (m) r radius (m) I current (A) t time (s) R resistance () P power (W) QH heat (J) ρ resistivit y ( m) length (m) A cross - sectional area (m2 ) U potential energy (J) C capacitanc e (F) v velocity (of moving charge or wire) ms B magnetic field (T) o magnetic permeabili ty of free space r radius (distance) from wire Physics Reference Tables Page 7 Table I. Electricity & Magnetism Formulas & Equations FM q (v B) FM (I B) V (v B) change Fe force due to electric field (N) B sin B sin k electrosta tic constant V v Bsin B Bv t Pin Pout Table J. Resistor Color Code Digit Nm2 C2 A cross - sectional area (m2 ) v velocity (of moving charge or wire) ms B magnetic field (T) o magnetic permeabili ty of free space B magnetic flux I # turns in V in out # turns out Vout I in Electromagnetic Induction q point charge (C) V voltage electric potential difference (V) emf electromot ive force (V) r radius (m) I current (A) length (m) t time (s) I B o 2 r B B A B cos A Magnetism Color FM q v FM I Table K. Symbols Used in Electrical Circuit Diagrams Multiplier Component Symbol Component Symbol 0 black 0 × 10 brown 1 × 10 red 2 × 10 orange 3 × 10 yellow 4 × 10 green 5 × 10 blue 6 × 10 1 wire battery switch ground fuse resistor voltmeter variable resistor (rheostat, potentiometer, dimmer) ammeter lamp (light bulb) ohmmeter capacitor ]2 3 4 5 6 7 violet 7 × 10 gray 8 × 10 white 9 × 10 8 9 gold ± 5% silver ± 10% diode Table L. Resistivities at 20°C Conductors Resistivity Ω m Substance silver copper gold aluminum tungsten iron nichrome graphite 1.59 10 8 1.72 10 8 2.44 10 8 2.82 10 8 5.60 10 8 9.7110 8 1.50 10 6 3 10 5 to 6 10 4 Substance Semiconductors Resistivity Ω m germanium silicon sea water drinking water 0.001 to 0.5 0.1 to 60 Substance deionized water glass 0.2 rubber, hard 20 to 2 000 paraffin (wax) air quartz, fused Insulators Resistivity Ω m 1.8 10 5 1 10 9 to 1 1013 1 1013 to 1 1013 1 1013 to 1 1017 1.3 1016 to 3.3 1016 7.51017 Physics Reference Tables Page 8 Table M. Waves & Optics Waves λ v f f 1 T v wave on a string v velocity of wave FT v v fdopplershifted f wave detector v wave v source i r c v n1 sin1 n2 sin2 n Reflection, Refraction & Diffraction n c sin 1 2 n1 n2 v1 λ 1 n1 v 2 λ 2 L m d sin sf Mirrors & Lenses rc 2 1 1 1 si so s f M hi s i ho so Figure N. The Electcromagnetic Spectrum ms f frequency (Hz) λ wavelength (m) T period (of time) (s) FT tension (force) on string (N) μ elastic modulus of string i angle of incidence (, rad) r angle of reflection (, rad) c critical angle (, rad) kg m n index of refraction (dimensionless) c speed of light in a vacuum ms s f distance to the focus of a mirror or lens (m) rc radius of curvature of a spherical mirror (m) si distance from the mirror or lens to the image (m) so distance from the mirror or lens to the object (m) hi height of the image (m) ho height of the object (m) M magnificat ion (dimensionl ess) d separation (m) L distance from the opening (m) m an integer Physics Reference Tables Page 9 Table O. Properties of Water and Air Water Air Speed of Sound Vapor Pressure (Pa) Density 999.78 999.94 999.69 998.19 997.02 1 403 1 427 1 447 1 481 1 496 611.73 872.60 1 228.1 2 338.8 3 169.1 1.288 1.265 1.243 1.200 1.180 331.30 334.32 337.31 343.22 346.13 30 40 50 60 995.61 992.17 990.17 983.16 1 507 1 526 1 541 1 552 4 245.5 7 381.4 9 589.8 19 932 1.161 1.124 1.089 1.056 349.02 354.73 360.35 365.88 70 80 90 100 980.53 971.79 965.33 954.75 1 555 1 555 1 550 1 543 25 022 47 373 70 117 101 325 1.025 0.996 0.969 0.943 371.33 376.71 382.00 387.23 Temp. (°C) Density 0 5 10 20 25 kg m3 ms kg m3 Speed of Sound ms Table P. Absolute Indices of Refraction Measured at f 5.09 1014 Hz (yellow light) Substance Index of Refraction Substance Index of Refraction air ice water 1.000293 1.309 1.3330 silica (quartz), fused plexiglass Lucite 1.459 1.488 1.495 1.474 ethyl alcohol 1.36 glass, borosilicate (Pyrex) human eye, cornea human eye, lens 1.38 1.41 glass, crown glass, flint 1.50–1.54 1.569–1.805 sodium chloride, solid PET (#1 plastic) zircon cubic zirconia diamond silicon 1.516 1.575 1.777–1.987 2.173–2.21 2.417 3.96 safflower oil corn oil glycerol honey silicone oil carbon disulfide 1.466 1.47 1.473 1.484–1.504 1.52 1.628 Physics Reference Tables Page 10 Table Q. Fluid Mechanics Formulas and Equations m V F P A change density V volume (m 3 ) P presure (Pa) P Po gh g accelerati on due to gravity A1v1 A2v2 h height or depth (m) P1 ρgh1 12 ρv 12 P2 ρgh2 12 ρv 22 FB Vd g v velocity (of fluid) m s2 ms F force (N) n number of moles (mol) molJK N number of molecules P1V1 P2V2 T1 T2 k B Boltzmann' s constant KJ T temperatur e (K) 3 E k (molecular) kBT M molar mass 2 3kBT 3RT M v rms A area (m2 ) R gas constant PV NkBT nRT Forces, Work & Energy kg m3 m mass (kg) F1 F2 A1 A2 Density & Pressure W PV g mol molecular mass (kg) E k kinetic energy (J) W work (N m) Table R. Planetary Data Mercury Distance from Sun (m) 5.79 × 10 10 6.37 × 10 24 5.97 × 10 4.87 × 10 3.30 × 10 kg m3 6 23 Mass (kg) Mars 1.50 × 10 6.05 × 10 2.44 × 10 1.08 × 10 Earth 11 6 Radius (m) Density Venus Jupiter 11 2.28 × 10 6 3.39 × 10 24 6.42 × 10 Saturn 11 7.78 × 10 6 6.99 × 10 23 1.90 × 10 Uranus 11 1.43 × 10 7 5.82 × 10 27 5.68 × 10 Neptune 12 12 2.87 × 10 4.50 × 10 7 2.54 × 10 26 8.68 × 10 7 2.46 × 10 25 1.02 × 10 5430 5250 5520 3950 1330 690 1290 1640 Orbit (years) 0.24 0.62 1.00 1.88 11.86 84.01 164.79 248.54 Rotation Period (hours) 1408 5832 23.9 24.6 9.9 10.7 17.2 16.1 Tilt of axis 2° 177.3° 23.5° 25.2° 3.1° 26.7° 97.9° 29.6° # of observed satellites 0 0 1 2 67 62 27 13 Table S. Sun & Moon Data Radius of the sun (m) 6.96 × 10 Mass of the sun (kg) 1.99 × 10 Radius of the moon (m) 1.74 × 10 Mass of the moon (kg) 7.35 × 10 Distance of moon from Earth (m) 3.84 × 10 8 30 6 22 8 12 7 26 Physics Reference Tables Page 11 Table T. Atomic & Particle Physics (Modern Physics) E photon hf K max Energy hc pc hf h p E mc 2 1 1v Special Relativity Figure U. Quantum Energy Levels 2 Lo L t t m rel mo c speed of light ms wavelength (m) E photon E i E f E energy (J) h Planck' s constant (J s) f frequency (Hz) c2 p momentum (N s) m mass (kg) K kinetic energy (J) work function Lorentz factor (dimensionless ) L length in moving reference frame (m) Lo length in stationary reference frame (m) t time in stationary reference frame (s) t time in moving reference frame (s) m o mass in stationary reference frame (kg) m rel apparent mass in moving reference frame (kg) v velocity ms Physics Reference Tables Page 12 Figure V. Particle Sizes Table W. The Standard Model Generation charge → spin → I II III 2.4 MeV/c² 1.27 GeV/c² 171.2 GeV/c² +⅔ ½ u up quark quarks 4.8 MeV/c² −⅓ ½ d +⅔ ½ c ½ charm quark 104 MeV/c² −⅓ ½ s t γ 0 1 top quark 4.2 GeV/c² −⅓ ½ b gluon < 2.2 eV/c² < 0.17 MeV/c² < 15.5 MeV/c² 91.2 GeV/c² 0 ½ νμ electron neutrino muon neutrino 0.511 MeV/c² 105.7 MeV/c² −1 −1 ½ e electron ½ μ muon 0 ½ ντ Z0 0 1 tau neutrino 1.777 GeV/c² −1 ½ τ tau 0 Z boson 80.4 GeV/c² ±1 1 W± W boson H0 Higgs boson g 1 bottom quark νe 0 0 MeV/c² 0 strange quark 0 125.3 GeV/c² photon down quark ½ leptons +⅔ 0 MeV/c² gauge bosons mass → Physics Reference Tables Page 13 Table X. Geometry & Trigonometry Formulas A 12 bh Triangles c2 a2 b2 2ab cos C a b c sin A sin B sin C c 2 a 2 b2 a opposite sin c hypotenuse cos Right Triangles tan b adjacent c hypotenuse sin a opposite cos b adjacent b c cos θ a c sin θ Rectangles, Parallelograms and Trapezoids A bh Rectangular Solids V wh C 2 r Circles Cylinders A r2 S 2 r 2 r 2 2 r( r) V r 2 S 4 r 2 Spheres V 4 r3 3 a , b, c length of a side of a triangle angle A area C circumfere nce S surface area V volume b base h height length w width r radius Physics Reference Tables Page 14 Table Y. Values of Trigonometric Functions radian sine cosine tangent degree radian sine cosine tangent 0° 0.000 0.000 1.000 0.000 1° 2° 3° 4° 5° 0.017 0.035 0.052 0.070 0.087 0.017 0.035 0.052 0.070 0.087 1.000 0.999 0.999 0.998 0.996 0.017 0.035 0.052 0.070 0.087 46° 47° 48° 49° 50° 0.803 0.820 0.838 0.855 0.873 0.719 0.731 0.743 0.755 0.766 0.695 0.682 0.669 0.656 0.643 1.036 1.072 1.111 1.150 1.192 6° 7° 8° 9° 10° 0.105 0.122 0.140 0.157 0.175 0.105 0.122 0.139 0.156 0.174 0.995 0.993 0.990 0.988 0.985 0.105 0.123 0.141 0.158 0.176 51° 52° 53° 54° 55° 0.890 0.908 0.925 0.942 0.960 0.777 0.788 0.799 0.809 0.819 0.629 0.616 0.602 0.588 0.574 1.235 1.280 1.327 1.376 1.428 11° 12° 13° 14° 15° 0.192 0.209 0.227 0.244 0.262 0.191 0.208 0.225 0.242 0.259 0.982 0.978 0.974 0.970 0.966 0.194 0.213 0.231 0.249 0.268 56° 57° 58° 59° 60° 0.977 0.995 1.012 1.030 1.047 0.829 0.839 0.848 0.857 0.866 0.559 0.545 0.530 0.515 0.500 1.483 1.540 1.600 1.664 1.732 16° 17° 18° 19° 20° 0.279 0.297 0.314 0.332 0.349 0.276 0.292 0.309 0.326 0.342 0.961 0.956 0.951 0.946 0.940 0.287 0.306 0.325 0.344 0.364 61° 62° 63° 64° 65° 1.065 1.082 1.100 1.117 1.134 0.875 0.883 0.891 0.899 0.906 0.485 0.469 0.454 0.438 0.423 1.804 1.881 1.963 2.050 2.145 21° 22° 23° 24° 25° 0.367 0.384 0.401 0.419 0.436 0.358 0.375 0.391 0.407 0.423 0.934 0.927 0.921 0.914 0.906 0.384 0.404 0.424 0.445 0.466 66° 67° 68° 69° 70° 1.152 1.169 1.187 1.204 1.222 0.914 0.921 0.927 0.934 0.940 0.407 0.391 0.375 0.358 0.342 2.246 2.356 2.475 2.605 2.747 26° 27° 28° 29° 30° 0.454 0.471 0.489 0.506 0.524 0.438 0.454 0.469 0.485 0.500 0.899 0.891 0.883 0.875 0.866 0.488 0.510 0.532 0.554 0.577 71° 72° 73° 74° 75° 1.239 1.257 1.274 1.292 1.309 0.946 0.951 0.956 0.961 0.966 0.326 0.309 0.292 0.276 0.259 2.904 3.078 3.271 3.487 3.732 31° 32° 33° 34° 35° 0.541 0.559 0.576 0.593 0.611 0.515 0.530 0.545 0.559 0.574 0.857 0.848 0.839 0.829 0.819 0.601 0.625 0.649 0.675 0.700 76° 77° 78° 79° 80° 1.326 1.344 1.361 1.379 1.396 0.970 0.974 0.978 0.982 0.985 0.242 0.225 0.208 0.191 0.174 4.011 4.331 4.705 5.145 5.671 36° 37° 38° 39° 40° 0.628 0.646 0.663 0.681 0.698 0.588 0.602 0.616 0.629 0.643 0.809 0.799 0.788 0.777 0.766 0.727 0.754 0.781 0.810 0.839 81° 82° 83° 84° 85° 1.414 1.431 1.449 1.466 1.484 0.988 0.990 0.993 0.995 0.996 0.156 0.139 0.122 0.105 0.087 6.314 7.115 8.144 9.514 11.430 41° 42° 43° 44° 45° 0.716 0.733 0.750 0.768 0.785 0.656 0.669 0.682 0.695 0.707 0.755 0.743 0.731 0.719 0.707 0.869 0.900 0.933 0.966 1.000 86° 87° 88° 89° 90° 1.501 1.518 1.536 1.553 1.571 0.998 0.999 0.999 1.000 1.000 0.070 0.052 0.035 0.017 0.000 14.301 19.081 28.636 57.290 8 degree Physics Reference Tables Page 15 Table Z. Some Exact and Approximate Conversions Length Mass/ Weight Volume 1 cm 1 inch (in.) length of a US dollar bill 12 in. 3 ft. 1m 1 km 5,280 ft. ≈ ≡ = ≡ ≡ = ≈ ≡ width of a small paper clip 2.54 cm 6.14 in. 1 foot (ft.) 1 yard (yd.) 0.3048 ft. 0.6 mi. 1 mile (mi.) 1 small paper clip US 1¢ coin (1983–present) US 5¢ coin 1 oz. one medium-sized apple 1 pound (lb.) 1 pound (lb.) 1 ton 1 tonne ≈ = = ≈ ≈ ≡ ≈ ≡ ≡ 0.5 gram (g) 2.5 g 5g 30 g 1N 16 oz. 4.45 N 2000 lb. 1000 kg 1 pinch = ≤ /8 teaspoon (tsp.) ≈ 10 drops ≈ 5 mL ≡ 1 tablespoon (Tbsp.) ≡ 1 fluid ounce (fl. oz.) ≡ 1 cup (C) ≡ 1 U.S. pint (pt.) ≡ 1 Imperial pint (UK) ≡ 1 U.S. quart (qt.) ≡ 1 U.S. gallon (gal.) ≡ 1 Imperial gal. (UK) m 60 Speed of light ≈ 2.24 1 /s mi. 15.6 cm 30 cm 1m 39.37 in. ≈ 1.6 km ≈ ≈ 3.6 oz. 454 g ≈ ≈ 0.9 tonne 1.1 ton ≈ ≈ ≈ ≈ ≈ ≈ ≈ ≈ ≈ 60 drops 15 mL 30 mL 250 mL 500 mL 600 mL 1L 3.8 L 4.7 L ≈ 27 /s ≈ 1 /ns 1 1 mL 1 tsp. 3 tsp. 2 Tbsp. 8 fl. oz. 16 fl. oz. 20 fl. oz. 2 pt. 4 qt. (U.S.) 4 qt. (UK) ≡ 5 qt. (U.S.) Speed = ≈ ≈ = ≈ 100 /h m 300 000 000 /s mi. km /h /h ≈ 186 000 mi. /s m ft.