Unit I: Physical World and Measurement 10 Periods

Chapter–1: Physical World

Physics-scope and excitement; nature of physical laws; Physics, technology

and society.

Chapter–2: Units and Measurements

Need for measurement: Units of measurement; systems of units; SI units,

fundamental and derived units. Length, mass and time measurements;

accuracy and precision of measuring instruments; errors in measurement;

significant figures.

Dimensions of physical quantities, dimensional analysis and its applications.