The scope of physics is vast. It spans topics as large as galaxies and the expansion of the universe, and as small as electrons and quarks. From mechanics and thermodynamics to optics and quantum theory, physics provides a framework to understand phenomena at every scale.

Experiments in physics reveal patterns and regularities in nature. These are expressed as physical laws — concise statements that describe how systems behave under given conditions. Laws such as Newton’s laws of motion or the laws of thermodynamics are universal, objective, and timeless. Physics laws do not Bend, Alter, Change, Distort or be manuplated according to whims and fancies of any individual, groups or communities or follow fashion trends.

Advances in physics drive technological progress, which in turn transforms society. For example, the study of heat engines led to thermodynamics, which powered the industrial revolution. Electromagnetism enabled wireless communication. More recently, the discovery of semiconductors and silicon chips sparked the digital revolution.

Measurements in physics are meaningful only when they are both accurate and precise. Accuracy reflects how close a measurement is to the true value, while precision refers to the consistency of repeated measurements.

Every measurement carries some uncertainty. Understanding and minimizing these errors is essential in ensuring the reliability of experimental results.

Physical quantities can be expressed in terms of fundamental dimensions such as mass, length, time, and charge. Dimensional analysis provides a powerful tool for checking equations and deriving relations between quantities.