Class 9–12 Science notes, made simple.
Colourful chapter-wise notes, print-ready PDFs and revision slides — for English and Hindi medium students.
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Units and Measurements
System of units, SI base and derived units, practical units, significant figures, rounding off, dimensions and dimensional analysis.
Motion in a Straight Line
Motion and its types, distance and displacement, speed, velocity and acceleration, motion graphs, kinematic equations, motion under gravity, stopping distance and reaction time.
Motion in a Plane
Scalars and vectors, vector addition and subtraction, resolution of vectors, dot and cross products, motion in a plane with uniform velocity and constant acceleration, projectile motion and uniform circular motion.
Laws of Motion
Force and inertia, Newton's three laws of motion, momentum and impulse, conservation of momentum, equilibrium and Lami's theorem, friction, circular motion on level and banked roads, and solving problems in mechanics.
Work, Energy and Power
Work done by constant and variable forces, conservative and non-conservative forces, kinetic energy and the work-energy theorem, potential energy, conservation of mechanical energy, motion in a vertical circle, power, collisions and coefficient of restitution.
System of Particles and Rotational Motion
Rigid bodies and types of motion, centre of mass, linear momentum of a system, torque and angular momentum, equilibrium, couple and principle of moments, centre of gravity, moment of inertia and radius of gyration, rotational kinematics and dynamics, and rolling motion.
Everything you need to revise a chapter
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English & Hindi medium
The same quality notes in both mediums. Hindi notes are on the way.
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Class 9, 10, 11 or 12 — in English or Hindi medium.
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