Force dimension
[F] = M L T⁻²
One sheet · NCERT · Board revision
Class 11 Physics Formula Sheet
33 formulas from Mathematics and Science, chapter by chapter. Search, filter, copy, or print. This is a revision sheet — not a replacement for the textbook derivation.
Practice questions aligned to NCERT topics used in CBSE classrooms. These are original exam-oriented questions for revision — not official CBSE board papers and not a guarantee of any exam question. Always match the textbook issued by your school and the latest PDFs on ncert.nic.in and cbseacademic.nic.in.
⚛️ Class 11 · Physics
Units and Measurements
Relative error
Δa / a
⚛️ Class 11 · Physics
Motion in a Straight Line
Constant a
v = u + at, s = ut + ½at², v² = u² + 2as
From chapter list
v=u+at
⚛️ Class 11 · Physics
Motion in a Plane
Projectile time of flight
T = 2 u sinθ / g
Maximum height
H = u² sin²θ / (2g)
Range
R = u² sin 2θ / g
Centripetal acceleration
a = v² / r = ω² r
⚛️ Class 11 · Physics
Laws of Motion
Newton II
F = dp/dt = m a
Friction
f ≤ μ N, f_k = μ_k N
From chapter list
f ≤ μN
⚛️ Class 11 · Physics
Work, Energy and Power
Work
W = F · s
KE
½ m v²
Power
P = F · v
From chapter list
P=F v; KE=½mv²
⚛️ Class 11 · Physics
System of Particles and Rotational Motion
Torque
τ = r × F = I α
Angular momentum
L = I ω
From chapter list
τ=Iα
⚛️ Class 11 · Physics
Gravitation
Escape speed
v_esc = √(2GM / R)
Orbital speed
v_o = √(GM / r)
g at height
g_h = g (R / (R+h))²
⚛️ Class 11 · Physics
Mechanical Properties of Solids
Young’s modulus
Y = (F/A) / (ΔL/L)
⚛️ Class 11 · Physics
Mechanical Properties of Fluids
Pressure
P = h ρ g
Bernoulli
P + ρ g h + ½ ρ v² = constant
Surface tension
T = F / l
⚛️ Class 11 · Physics
Thermal Properties of Matter
Linear expansion
ΔL = α L ΔT
Heat
Q = m c ΔT, Q = m L
⚛️ Class 11 · Physics
Thermodynamics
First law (NCERT)
ΔU = Q − W
Ideal gas
Cₚ − Cᵥ = R
⚛️ Class 11 · Physics
Kinetic Theory
rms speed
v_rms = √(3RT / M)
⚛️ Class 11 · Physics
Oscillations
SHM period (spring)
T = 2π √(m / k)
Simple pendulum
T = 2π √(l / g)
⚛️ Class 11 · Physics
Waves
Wave speed
v = f λ
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FAQs
Are these all official board formulas?
They are the standard NCERT relations used in CBSE Maths and Science papers. Always match the edition issued by your school.
Why are some Biology items short?
Biology is mostly definitions. Only equations and standard ratios (photosynthesis, Hardy–Weinberg, growth models) sit on this sheet.
Will a formula come as-is in the exam?
Often the paper asks you to use a formula, not recite it. Practise a numerical or a derivation after you memorise the line.