SPI Physics Notes

Current and Ohm's law, resistivity, series and parallel resistors, power and the kilowatt hour, house wiring and the fuse, magnetic fields, the motor and the generator.

What light is, the laws of reflection, mirrors and their uses, refractive index, lenses and power, defects of the eye, dispersion and twinkling stars, and optical instruments.

Sound as a mechanical wave, v = fλ, the speed of sound in each medium, the voice box and the ear, soundboards, echoes and ultrasound.

Why standard units exist, old Indian units of length, instants and intervals of time, the seven SI base units, derived units, prefixes from giga to nano, and CGS to SI.

Energy changes in thermal, nuclear and hydroelectric plants, clean and polluting sources, solar cells, biomass and the biogas plant.

Rest and motion, distance and displacement, average speed, motion graphs, slope and area of a velocity-time graph, and the equations of motion.

Thrust and pressure, pressure under a liquid and at a depth, density and relative density, Archimedes' principle and how much a floating raft can carry.

Newton's law of gravitation, the value of g and why it changes from pole to equator, mass and weight, geostationary satellites and escape velocity.

Newton's three laws, momentum and force as its rate of change, a firing gun, conservation of momentum, the four fundamental forces and the three classes of lever.