phys
This is the place where all the table-heavy conversions and texts come into play since I don’t want it fucking up destroying the existing format of my other notes.
Base Quantities & Units
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Quantity Symbol Base Unit Distance d, x, l meter (m) Mass m kilogram (kg) Time t second (s) Temperature T Celsius (°C), Fahrenheit (°F), Kelvin (K) Electric Current I ampere (A) Luminous Intensity lᵥ candela (cd) Voltage V or ∆V volt (V) Resistance R ohm (Ω) Charge Q or q coulomb (C)
Common Derived Quantities & Units
Quantity Symbol S.I. Unit Unit Symbol Area A metre squared m² Volume V metre cubed m³ Speed/Velocity s, v metre per second m/s Acceleration a metre per second squared m/s² Force F newton N = kg·m/s² Energy/Work E, W joule J = N·m Power P watt W = N·m/s Pressure P pascal Pa = N/m² Density ρ kg per metre cubed kg/m³ Momentum p kg·metre per second kg·m/s = N·s Moment (Torque) τ newton metre N·m
SI Prefixes
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Prefixes simplify the expression of very large or very small measurements — all multiples of 10.
Prefix Symbol Power of 10 quetta Q 10³⁰ ronna R 10²⁷ yotta Y 10²⁴ zetta Z 10²¹ exa E 10¹⁸ peta P 10¹⁵ tera T 10¹² giga G 10⁹ mega M 10⁶ kilo k 10³ hecto h 10² deka da 10¹ Base Unit — 10⁰ deci d 10⁻¹ centi c 10⁻² milli m 10⁻³ micro μ 10⁻⁶ nano n 10⁻⁹ pico p 10⁻¹² femto f 10⁻¹⁵ atto a 10⁻¹⁸ zepto z 10⁻²¹ yocto y 10⁻²⁴
Standard Conversion Factors
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Length Equivalent 1 km = 1000 m 1 m = 100 cm = 3.281 ft = 39.37 in 1 cm = 0.01 m 1 mm = 0.001 m 1 in = 2.54 cm 1 ft = 12 in 1 yd = 3 ft 1 mi = 5280 ft
Mass Equivalent 1 kg = 1000 g ≈ 2.205 lb 1 g = 1000 mg 1 lb = 16 oz 1 oz ≈ 28.35 g
Volume Equivalent 1 L = 1000 mL = 1000 cm³ (cc) 1 gal ≈ 3.785 L
Time Equivalent 1 min = 60 s 1 hr = 60 min = 3600 s