Physics
Speed
v = distance / time
Acceleration
a = (v - u) / t
Force
F = ma
Work
W = Fs cos θ
Kinetic energy
KE = ½mv²
Ohm's law
V = IR
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⚡ Quick Formula & Cheat Sheets
Chemistry
Moles
n = mass / molar mass
Molarity
M = moles of solute / litres of solution
Density
ρ = mass / volume
Ideal gas
PV = nRT
pH
pH = −log₁₀[H⁺]
Maths
Quadratic formula
x = (−b ± √(b² − 4ac)) / 2a
(a + b)²
a² + 2ab + b²
Pythagoras
a² + b² = c²
Circle area
A = πr²
Trigonometry
sin²θ + cos²θ = 1
✅ Printable Syllabus Tracker
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