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Physics

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Physics Formula Handbook

Essential Formula Sheets

High-yield formulas, laws, and equations organized chapter-wise for rapid revision and problem solving.

Chapter 01•12 High-Yield Equations

Units and Measurements

Practice PYQs
#01

Dimensional Formula — Force

[F]=[M L T−2][F] = [M\,L\,T^{-2}]
Newton (N) = kg·m/s²
#02

Dimensional Formula — Energy / Work

[E]=[M L2 T−2][E] = [M\,L^2\,T^{-2}]
Joule (J)
#03

Dimensional Formula — Power

[P]=[M L2 T−3][P] = [M\,L^2\,T^{-3}]
Watt (W) = J/s
#04

Dimensional Formula — Pressure / Stress

[P]=[M L−1 T−2][P] = [M\,L^{-1}\,T^{-2}]
Pascal (Pa) = N/m²
#05

Dimensional Formula — Electric Charge

[q]=[A T][q] = [A\,T]
Coulomb (C)
#06

Dimensional Formula — Gravitational Constant

[G]=[M−1 L3 T−2][G] = [M^{-1}\,L^3\,T^{-2}]
G = 6.674 × 10⁻¹¹ N·m²/kg²
#07

Dimensional Formula — Planck's Constant

[h]=[M L2 T−1][h] = [M\,L^2\,T^{-1}]
h = 6.626 × 10⁻³⁴ J·s
#08

Absolute Error

Δa=∣amean−ai∣\Delta a = |a_{mean} - a_i|
Mean value minus individual measurement
#09

Relative Error

Relative Error=Δaamean\text{Relative Error} = \frac{\Delta a}{a_{mean}}
Dimensionless ratio
#10

Percentage Error

% Error=Δaamean×100\text{\% Error} = \frac{\Delta a}{a_{mean}} \times 100
Used to report accuracy
#11

Error in Product / Quotient

ΔZZ=ΔAA+ΔBB\frac{\Delta Z}{Z} = \frac{\Delta A}{A} + \frac{\Delta B}{B}
For Z = A × B or Z = A/B
#12

Error in Power

ΔZZ=nΔAA\frac{\Delta Z}{Z} = n\frac{\Delta A}{A}
For Z = Aⁿ
1 of 29 Chapters

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