ICSE Class 11 Physics — Chapter Summary

Physics studies nature and natural phenomena. It is a broad branch of science that uses observation, hypothesis, testing, and modification to build reliable knowledge. The subject covers an enormous range of length, mass, and time, from the very small scale of nuclei and particles to the very large

Elasticity is the property of a material by which it opposes deformation and regains its original shape and size after the deforming force is removed. Deforming force produces deformation, and the response of a solid depends on its elastic nature, the type of stress applied, and whether the material

Physics is a science of measurement. Physical phenomena are described by measuring quantities such as length, mass, time, force, speed and many others. A measurement always combines a numerical value with a unit, and changing the unit changes the numerical value while keeping the product constant. T