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Formula library

The free formula library,
one story per formula

Browse 16 formulas across Physics, Chemistry, Maths and Biology for Class 9 to 12, JEE, NEET, SSC and Banking. Each page has the formula, a short story, a real-life analogy, a memory trick and an exam tip. Reading is free and uses none of your daily AI stories.

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Formula Library

Ready-made formula pages — no AI token needed. Click any formula to open it instantly.

Physics4
Ohm's LawV = I × R · Class 10, Class 12Newton's Second LawF = m × a · Class 9, Class 11Kinetic EnergyKE = ½ × m × v² · Class 9, Class 11First Equation of Motionv = u + at · Class 9, Class 11All Physics formulasOpen the Physics page · 4 formulas
Chemistry4
Ideal Gas LawPV = nRT · Class 11, Class 12Boyle's LawP₁V₁ = P₂V₂ · Class 11, JEEMolarityM = moles of solute ÷ litres of solution · Class 11, Class 12pHpH = −log₁₀[H⁺] · Class 11, Class 12All Chemistry formulasOpen the Chemistry page · 4 formulas
Maths4
Quadraticx = (−b ± √(b² − 4ac)) ÷ 2a · Class 10, Class 11Pythagoras Theorema² + b² = c² · Class 9, Class 10Basic Trigonometric Identitysin²θ + cos²θ = 1 · Class 10, Class 11Compound InterestA = P × (1 + r/100)ⁿ · Class 10, SSCAll Maths formulasOpen the Maths page · 4 formulas
Biology4
Photosynthesis6CO₂ + 6H₂O + light energy → C₆H₁₂O₆ + 6O₂ · Class 10, Class 11Cellular RespirationC₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + energy (ATP) · Class 11, NEETHardy-Weinbergp² + 2pq + q² = 1 · Class 12, NEETMendel's Monohybrid RatioPhenotype 3 : 1 and genotype 1 : 2 : 1 in F2 · Class 12, NEETAll Biology formulasOpen the Biology page · 4 formulas

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Last updated: . ThunderStudy is owned and maintained by Wondermayank, a solo student developer who has been building free educational tools since 2018.